Merge pull request #82 from GMWalletApp/dev

Dev

.github/workflows/docker-alpine.yml

@@ -1,15 +1,12 @@
 name: docker-alpine-epusdt
 
 on:
-  workflow_dispatch:
   push:
-    branches:
-      - "main"
-      - "master"
     tags:
       - "v*"
 
 env:
+  DOCKERHUB_NAMESPACE: gmwallet
   IMAGE_NAME: epusdt
 
 jobs:
@@ -29,12 +26,11 @@ jobs:
         id: meta
         uses: docker/metadata-action@v5
         with:
-          images: ${{ secrets.DOCKERHUB_USERNAME }}/${{ env.IMAGE_NAME }}
+          images: ${{ env.DOCKERHUB_NAMESPACE }}/${{ env.IMAGE_NAME }}
           tags: |
             type=raw,value=alpine
-            type=raw,value=latest,enable={{is_default_branch}}
+            type=raw,value=latest
-            type=ref,event=branch,suffix=-alpine
+            type=ref,event=tag
-            type=ref,event=tag,suffix=-alpine
             type=sha,prefix=sha-,suffix=-alpine
 
       - name: Login To Docker Hub
@@ -52,5 +48,6 @@ jobs:
           platforms: linux/amd64,linux/arm64
           build-args: |
             API_RATE_URL=${{ vars.API_RATE_URL }}
+            BUILD_VERSION=${{ github.ref_name }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}

Dockerfile

@@ -8,8 +8,9 @@ WORKDIR /app
 COPY . /app
 
 WORKDIR /app/src
+ARG BUILD_VERSION=0.0.0-dev
 RUN go mod download
-RUN go build -o /app/epusdt .
+RUN go build -trimpath -ldflags="-s -w -X github.com/GMWalletApp/epusdt/config.BuildVersion=${BUILD_VERSION}" -o /app/epusdt .
 
 FROM alpine:latest AS runner
 ENV TZ=Asia/Shanghai
@@ -17,8 +18,6 @@ RUN apk --no-cache add ca-certificates tzdata
 ARG API_RATE_URL=""
 
 WORKDIR /app
-COPY --from=builder /app/src/static /app/static
-COPY --from=builder /app/src/static /static
 COPY --from=builder /app/src/.env.example /app/.env
 RUN if [ -n "$API_RATE_URL" ]; then \
       sed -i "s|^api_rate_url=.*$|api_rate_url=${API_RATE_URL}|" /app/.env; \

README.en.md

@@ -0,0 +1,176 @@
+# Epusdt — Easy Payment USDT
+
+<p align="center">
+  <img src="https://gmwallet.app/favicon.png" alt="Epusdt Logo - Multi-chain Crypto Payment Gateway" width="120">
+</p>
+
+<p align="center">
+  <strong>Open-source multi-chain crypto payment gateway · Top real-world adoption</strong>
+</p>
+
+<p align="center">
+  <a href="./README.en.md">English</a> |
+  <a href="./README.zh-CN.md">简体中文</a>
+</p>
+
+<p align="center">
+  <a href="https://epusdt.com"><img src="https://img.shields.io/badge/Docs-epusdt.com-blue?style=for-the-badge" alt="Official Docs"></a>
+  <a href="https://t.me/epusdt"><img src="https://img.shields.io/badge/Telegram-Channel-26A5E4?style=for-the-badge&logo=telegram&logoColor=white" alt="Telegram Channel"></a>
+  <a href="https://t.me/epusdt_group"><img src="https://img.shields.io/badge/Telegram-Group-26A5E4?style=for-the-badge&logo=telegram&logoColor=white" alt="Telegram Group"></a>
+</p>
+
+<p align="center">
+  <a href="https://github.com/GMWalletApp/epusdt/stargazers"><img src="https://img.shields.io/github/stars/GMWalletApp/epusdt?style=flat-square&color=f5c542" alt="GitHub Stars 3000+"></a>
+  <a href="https://www.gnu.org/licenses/gpl-3.0.html"><img src="https://img.shields.io/badge/License-GPLv3-blue?style=flat-square" alt="GPLv3 License"></a>
+  <a href="https://golang.org"><img src="https://img.shields.io/badge/Go-1.16+-00ADD8?style=flat-square&logo=go&logoColor=white" alt="Go 1.16+"></a>
+  <a href="https://github.com/GMWalletApp/epusdt/releases"><img src="https://img.shields.io/github/v/release/GMWalletApp/epusdt?style=flat-square&color=green" alt="Latest Release"></a>
+</p>
+
+---
+
+## What is Epusdt?
+
+**Epusdt** (Easy Payment USDT) is a self-hosted **multi-chain, multi-token crypto payment gateway** built with Go. It started as a TRC20-only solution and evolved into a broader **multi-chain receiving platform**, allowing websites and applications to accept crypto payments across multiple networks and token types. No third-party custody, no platform fees — funds go directly into your wallet.
+
+> **GitHub Star 3000+** · **10+ supported platform integrations** · **Top real-world adoption among crypto payment tools**
+
+Deploy it privately, integrate with the HTTP API, and start receiving crypto payments in minutes.
+
+### Supported Networks and Tokens
+
+| Network | Tokens |
+|---------|--------|
+| **TRC20** (Tron) | USDT, TRX |
+| **ERC20** (Ethereum) | USDT, USDC, ETH |
+| **Solana** | USDT, USDC |
+| **BEP20** (BSC) | USDT, USDC, BNB |
+| **Polygon** | USDT, USDC |
+| **More** | Expanding continuously |
+
+> Actual support depends on the [latest release](https://github.com/GMWalletApp/epusdt/releases) and the [official docs](https://epusdt.com).
+
+---
+
+## Broad Compatibility, Plug and Play
+
+No matter what kind of platform you operate, Epusdt can fit into existing payment integration patterns with **minimal or no business logic refactor**, giving you a fast path to crypto payments for global use cases:
+
+| Category | Supported Systems |
+|----------|-------------------|
+| **AI Distribution** | [OneAPI](https://github.com/songquanpeng/one-api), [NewAPI](https://github.com/QuantumNous/new-api) |
+| **Card/Voucher Platforms** | [Dujiaoka](https://dujiao-next.com/), [ACG Faka](https://github.com/lizhipay/acg-faka) |
+| **Proxy Panels** | [V2Board](https://github.com/v2board/v2board), [XBoard](https://github.com/cedar2025/Xboard), [xiaoV2board](https://github.com/wyx2685/v2board/), [SSPanel](https://github.com/anankke/sspanel-uim) |
+| **Website Ecosystem** | [WordPress](https://wordpress.com/), [WHMCS](https://www.whmcs.com/) |
+| **Epay-Compatible Flow** | Works with platforms already using Epay-style payment interfaces |
+| **More** | Simple HTTP API, often integrated within 10 minutes |
+
+---
+
+## Core Features
+
+- **Multi-chain and multi-token** — TRC20, ERC20, BEP20, Polygon, and more
+- **Self-hosted** — full control of funds and wallet infrastructure
+- **Low-dependency runtime** — a single binary can run the service; low-traffic setups do not require MySQL + Redis
+- **Cross-platform** — supports x86 / ARM on Windows / Linux / Mac
+- **Multi-wallet rotation** — rotates receiving addresses to improve concurrency handling
+- **Async callback queue** — handles merchant notifications efficiently
+- **HTTP API** — easy integration from any language or framework
+- **Telegram Bot** — instant payment notifications and lightweight operations
+
+---
+
+## Documentation and Guides
+
+Full documentation: **[epusdt.com](https://epusdt.com)**
+
+Quick-start links:
+
+| Guide | Description |
+|-------|-------------|
+| [Docker Deployment](https://epusdt.com/guide/installation/docker) | Recommended one-command setup |
+| [aaPanel Deployment](https://epusdt.com/guide/installation/aapanel) | Great for aaPanel users |
+| [Manual Deployment](https://epusdt.com/guide/installation/manual.html) | Full manual control |
+| [Developer API Docs](https://epusdt.com) | Integration reference |
+
+---
+
+## Project Structure
+
+```text
+Epusdt
+├── src/        Core project source code
+└── wiki/       Documentation assets and knowledge base
+```
+
+---
+
+## How It Works
+
+Epusdt listens to supported blockchain APIs or RPC nodes across multiple networks such as TRC20, ERC20, BEP20, and Polygon. It captures incoming token transfers in real time and matches ownership using **amount differentiation** and **time-bounded locks**:
+
+```text
+Workflow:
+1. A customer initiates payment and needs to send 20.05 USDT
+2. The system searches for an available wallet-address + amount combination
+3. If address_1:20.05 is free -> lock it for 10 minutes and return it
+4. If already occupied -> add 0.0001 and try the next amount combination
+5. Background listeners keep watching wallet deposits and mark the order paid once the amount matches
+```
+
+![Epusdt Payment Flow](wiki/img/implementation_principle.jpg)
+
+---
+
+## Community and Support
+
+If you hit an issue, please open a [GitHub Issue](https://github.com/GMWalletApp/epusdt/issues) first. That is the best way to get attention and help.
+
+| Channel | Link |
+|---------|------|
+| Telegram Channel | [https://t.me/epusdt](https://t.me/epusdt) |
+| Telegram Group | [https://t.me/epusdt_group](https://t.me/epusdt_group) |
+| Official Docs | [https://epusdt.com](https://epusdt.com) |
+
+---
+
+## Star History
+
+<a href="https://www.star-history.com/?type=date&repos=gmwalletapp%2Fepusdt">
+ <picture>
+   <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/chart?repos=gmwalletapp/epusdt&type=date&theme=dark&legend=top-left" />
+   <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/chart?repos=gmwalletapp/epusdt&type=date&legend=top-left" />
+   <img alt="Star History Chart" src="https://api.star-history.com/chart?repos=gmwalletapp/epusdt&type=date&legend=top-left" />
+ </picture>
+</a>
+
+---
+
+## License
+
+Epusdt is released under the [GPLv3](https://www.gnu.org/licenses/gpl-3.0.html) license.
+
+---
+
+## Disclaimer and Terms of Use
+
+EPusdt is developed and published by Good Morning Technology, LLC as free, open-source, non-profit, and non-custodial software for learning, research, and technical communication. Nothing in this project constitutes investment, financial, legal, tax, compliance, or any other professional advice, nor should it be interpreted as a guarantee regarding any asset, transaction outcome, revenue, fund safety, technical availability, or fitness for a particular purpose.
+
+Good Morning Technology, LLC is an entity organized under United States law and will comply with applicable legal and regulatory obligations as required. Under U.S. regulatory frameworks, whether virtual currencies, digital assets, or related technical services constitute money transmission, a money services business (MSB), or another regulated activity generally depends on the specific business model, including whether the operator receives, holds, controls, or transmits funds or value, provides custody on behalf of users, or engages in exchange, payment, clearing, settlement, or other intermediary financial services.
+
+As a free, open-source, non-profit, and non-custodial software project, the source code, documentation, technical communication, and related development activities of EPusdt should not be interpreted as authorization, endorsement, control, participation, warranty, or commitment by Good Morning Technology, LLC or its contributors regarding any user's downstream use, modification, deployment, integration, distribution, or secondary development.
+
+Users independently determine how they use this project, for what purpose, and in what context. Good Morning Technology, LLC and its contributors cannot control, review, or restrict such conduct. Users are solely responsible for ensuring that their use, modification, deployment, integration, distribution, or derivative development complies with applicable laws, regulations, sanctions rules, and third-party rights in the relevant jurisdictions, and they bear all resulting risks, liabilities, and consequences.
+
+Crypto assets are a high-risk emerging asset class. Stablecoins and other digital assets may experience sharp volatility, de-pegging, insufficient liquidity, technical failures, regulatory changes, or total loss of value. All code, documentation, and related materials in this project are provided on an "as is" and "as available" basis. Except where mandatory law provides otherwise, Good Morning Technology, LLC and its contributors are not liable for any direct or indirect loss resulting from use, inability to use, misuse, unlawful use, modification, deployment, integration, distribution, derivative development, or reliance on this project.
+
+---
+
+<p align="center">
+  <sub>
+    <b>Keywords:</b> USDT Payment Gateway · Crypto Payment · Multi-chain Payment · TRC20 Payment · ERC20 Payment · BEP20 Payment ·
+    Self-hosted Crypto Gateway · OneAPI Payment · NewAPI Payment · Dujiaoka Payment · ACG Faka Payment ·
+    V2Board Payment · XBoard Payment · SSPanel Payment Interface ·
+    WordPress Crypto Payment · WHMCS USDT Payment · Polygon USDT ·
+    Epusdt · Easy Payment USDT · Open Source Payment Gateway · Multi-chain Collection
+  </sub>
+</p>

README.md

@@ -1,13 +1,18 @@
 # Epusdt — Easy Payment USDT
 
 <p align="center">
-  <img src="wiki/img/usdtlogo.png" alt="Epusdt Logo - Multi-chain Crypto Payment Gateway" width="120">
+  <img src="https://gmwallet.app/favicon.png" alt="Epusdt Logo - Multi-chain Crypto Payment Gateway" width="120">
 </p>
 
 <p align="center">
   <strong>开源多链多币种 Crypto 支付网关 · 实际采用率 Top 1</strong>
 </p>
 
+<p align="center">
+  <a href="./README.en.md">English</a> |
+  <a href="./README.md">简体中文</a>
+</p>
+
 <p align="center">
   <a href="https://epusdt.com"><img src="https://img.shields.io/badge/官网文档-epusdt.com-blue?style=for-the-badge" alt="Official Docs"></a>
   <a href="https://t.me/epusdt"><img src="https://img.shields.io/badge/Telegram-频道-26A5E4?style=for-the-badge&logo=telegram&logoColor=white" alt="Telegram Channel"></a>
@@ -23,62 +28,60 @@
 
 ---
 
-## 🌍 What is Epusdt?
+## What is Epusdt?
 
-**Epusdt** (Easy Payment USDT) is a self-hosted **multi-chain, multi-token crypto payment gateway** built with Go. It has evolved from a TRC20-only solution into a comprehensive **multi-chain receiving platform**, enabling any website or application to accept crypto payments across multiple blockchain networks and token types. No third-party fees, no custodial risk — funds go directly into your wallet.
+**Epusdt** (Easy Payment USDT) 是一个基于 Go 构建、支持私有化部署的 **多链多币种 Crypto 支付网关**。它从最初的 TRC20 单链方案逐步演进为完整的 **多链收款平台**，让任意网站或应用都能快速接入多条链、多种代币的加密支付能力。没有第三方托管，没有平台抽成，资金直接进入你的钱包。
 
-> **⭐ GitHub Star 3000+** · **🔌 已支持站点解决方案 10+** · **🏆 Crypto 支付工具实际采用率 Top 1**
+> **GitHub Star 3000+** · **已支持站点解决方案 10+** · **Crypto 支付工具实际采用率 Top 1**
 
-Deploy it privately, integrate via HTTP API, and start receiving **crypto payments** in minutes. That's it. 🎉
+私有部署，按 HTTP API 接入，几分钟内就可以开始接收 **Crypto Payments**。
 
-### 🔗 已支持网络与代币
+### 已支持网络与代币
 
 | 网络 | 代币 |
 |------|------|
-| **TRC20** (Tron) | USDT、TRX|
+| **TRC20** (Tron) | USDT、TRX |
 | **ERC20** (Ethereum) | USDT、USDC、ETH |
 | **Solana** | USDT、USDC |
 | **BEP20** (BSC) | USDT、USDC、BNB |
 | **Polygon** | USDT、USDC |
 | **更多** | 持续扩展中… |
 
-> 💡 具体支持的链与代币以 [最新版本](https://github.com/GMWalletApp/epusdt/releases) 及 [官方文档](https://epusdt.com) 为准。
+> 具体支持的链与代币以 [最新版本](https://github.com/GMWalletApp/epusdt/releases) 及 [官方文档](https://epusdt.com) 为准。
 
 ---
 
-## 🔌 广泛兼容，即插即用
+## 广泛兼容，即插即用
 
 无论你运营的是哪类系统，Epusdt 均可基于现有接口方案，**无需重构业务逻辑**，快速接入，立即获得 Crypto 收款能力，低成本扩展全球支付场景：
 
 | 领域 | 已支持系统 |
 |------|-----------|
-| **AI 分发** | [OneAPI](https://github.com/songquanpeng/one-api)、[NewAPI](https://github.com/QuantumNous/new-api) |
+| **AI 分发** | [Sub2API](https://github.com/Wei-Shaw/sub2api)、[NewAPI](https://github.com/QuantumNous/new-api) |
 | **发卡系统** | [独角数卡（Dujiaoka）](https://dujiao-next.com/)、[异次元发卡](https://github.com/lizhipay/acg-faka) |
 | **代理面板** | [V2Board](https://github.com/v2board/v2board)、[XBoard](https://github.com/cedar2025/Xboard)、[xiaoV2board](https://github.com/wyx2685/v2board/)、[SSPanel](https://github.com/anankke/sspanel-uim) |
 | **建站生态** | [WordPress](https://wordpress.com/)、[WHMCS](https://www.whmcs.com/) |
-| **Epay兼容** | 兼容各类支持Epay易支付接口的平台 |
+| **Epay 兼容** | 兼容各类支持 Epay 易支付接口的平台 |
-| **更多** | 简易HTTP API 10分钟内接入 |
+| **更多** | 简易 HTTP API，10 分钟内接入 |
- 
-👉 查看更多集成列表与插件：[plugins/](plugins/)
 
 ---
 
-## ✨ 核心特性
+## 核心特性
 
-- **多链多币种** — 支持 TRC20、ERC20、BEP20、Polygon 等主流网络，不再局限于单一链
+- **多链多币种** — 支持 TRC20、ERC20、BEP20、Polygon 等主流网络
-- **私有化部署** — 无需担心钱包被篡改、吞单，资金完全自主掌控
+- **私有化部署** — 资金完全自主掌控
-- **零依赖运行** — 单个二进制文件即可启动，低并发场景无需安装 MySQL + Redis,一键部署零成本维护
+- **零依赖运行** — 单个二进制即可启动，低并发场景无需 MySQL + Redis
-- **跨平台** — 支持 x86 / ARM 架构的 Windows / Linux / Mac 设备
+- **跨平台** — 支持 x86 / ARM 架构的 Windows / Linux / Mac
-- **多钱包轮询** — 自动轮换收款地址，提高订单并发处理能力
+- **多钱包轮询** — 自动轮换收款地址，提高并发处理能力
-- **异步队列** — 高性能消息回调，优雅处理高并发场景
+- **异步队列** — 高性能消息回调，适配高并发场景
-- **HTTP API** — 标准化接口，任何语言 / 框架均可10min内集成
+- **HTTP API** — 标准化接口，任何语言 / 框架都能快速集成
 - **Telegram Bot** — 实时支付通知，快捷管理与监控
 
 ---
 
-## 📖 文档与教程
+## 文档与教程
 
-完整文档请访问 👉 **[epusdt.com](https://epusdt.com)**
+完整文档请访问：**[epusdt.com](https://epusdt.com)**
 
 快速入门：
 
@@ -91,29 +94,26 @@ Deploy it privately, integrate via HTTP API, and start receiving **crypto paymen
 
 ---
 
-## 🏗️ 项目结构
+## 项目结构
 
-```
+```text
 Epusdt
-├── plugins/    → 已集成的系统插件（独角数卡等）
+├── src/        项目核心代码
-├── src/        → 项目核心代码
+└── wiki/       文档与知识库
-├── sdk/        → 接入 SDK
-├── sql/        → 数据库安装 / 升级脚本
-└── wiki/       → 文档与知识库
 ```
 
 ---
 
-## 🔧 实现原理
+## 实现原理
 
-Epusdt 通过监听多条区块链网络（TRC20、ERC20、BEP20、Polygon 等）的 API 或RPC节点，实时捕获钱包地址的代币入账事件，利用**金额差异**与**时效性**精确匹配交易归属：
+Epusdt 通过监听多条区块链网络（TRC20、ERC20、BEP20、Polygon 等）的 API 或 RPC 节点，实时捕获钱包地址的代币入账事件，利用**金额差异**与**时效性**精确匹配交易归属：
 
-```
+```text
 工作流程：
 1. 客户发起支付，需支付 20.05 USDT
-2. 系统在哈希表中查找可用的 钱包地址 + 金额 组合
+2. 系统在哈希表中查找可用的钱包地址 + 金额组合
-3. 若 address_1:20.05 未被占用 → 锁定该组合（有效期 10 分钟），返回给客户
+3. 若 address_1:20.05 未被占用 -> 锁定该组合（有效期 10 分钟），返回给客户
-4. 若已被占用 → 自动累加 0.0001 尝试下一个金额组合（最多 100 次）
+4. 若已被占用 -> 自动累加 0.0001 尝试下一个金额组合（最多 100 次）
 5. 后台线程持续监听所有钱包的入账事件，金额匹配则确认支付成功
 ```
 
@@ -121,17 +121,15 @@ Epusdt 通过监听多条区块链网络（TRC20、ERC20、BEP20、Polygon 等
 
 ---
 
-## 💬 社区与支持
+## 社区与支持
 
-**遇到问题？** 请优先在 GitHub 提交 [Issue](https://github.com/GMWalletApp/epusdt/issues)，我们会**优先处理** Issue 中的反馈。
+**遇到问题？** 请优先在 GitHub 提交 [Issue](https://github.com/GMWalletApp/epusdt/issues)，我们会优先处理反馈。
-
-加入 Telegram 社区，获取最新开发动态，参与需求调研，与超过5000名活跃用户交流使用经验，对接商业资源：
 
 | 渠道 | 链接 |
 |------|------|
-| 📢 **Epusdt 频道** | [https://t.me/epusdt](https://t.me/epusdt) |
+| Epusdt 频道 | [https://t.me/epusdt](https://t.me/epusdt) |
-| 💬 **Epusdt 交流群** | [https://t.me/epusdt_group](https://t.me/epusdt_group) |
+| Epusdt 交流群 | [https://t.me/epusdt_group](https://t.me/epusdt_group) |
-| 📚 **官方文档站** | [https://epusdt.com](https://epusdt.com) |
+| 官方文档站 | [https://epusdt.com](https://epusdt.com) |
 
 ---
 
@@ -147,24 +145,32 @@ Epusdt 通过监听多条区块链网络（TRC20、ERC20、BEP20、Polygon 等
 
 ---
 
-## 📜 开源协议
+## 开源协议
 
 Epusdt 遵守 [GPLv3](https://www.gnu.org/licenses/gpl-3.0.html) 开源协议。
 
 ---
 
-## ⚠️ 免责声明
+## 免责声明及使用条款
 
-本项目仅供学习与技术交流使用，用户在使用过程中需自行遵守所在地法律法规。由于涉及加密资产及资金安全，用户应自行审查相关代码与风险。加密资产属于高风险新兴资产（包括稳定币），其价值可能波动甚至归零，GMwallet 不对任何资产或使用结果作出保证。本内容不构成任何投资、税务、法律或金融建议，仅供教育用途，相关决策请咨询专业人士。
+EPusdt 由 Good Morning Technology, LLC 以免费、开源、非盈利及非托管性质开发和披露，仅供学习、研究与技术交流使用。项目本身不构成投资、金融、法律、税务、合规或任何其他专业建议，也不应被视为对任何资产、交易结果、收益、资金安全、技术可用性或特定用途作出任何保证。
+
+Good Morning Technology, LLC 为依据美国法律设立的主体，并将在适用法律法规范围内履行相应合规义务。就美国监管框架而言，虚拟货币、数字资产及相关技术服务是否构成 money transmission、money services business（MSB）或其他受监管活动，通常取决于具体业务模式，包括项目方是否接收、持有、控制或传输资金或价值，是否代表用户托管资产，以及是否从事兑换、支付、清算、结算或其他中介性金融服务。
+
+作为免费、开源、非盈利、非托管的软件项目，EPusdt 的代码披露、文档说明、技术交流及相关开发活动，本身不应被理解为 Good Morning Technology, LLC 或其贡献者对任何用户后续使用、修改、部署、集成、分发或二次开发行为的授权、背书、控制、参与、保证或承诺。
+
+用户对本项目的实际使用方式、使用目的及后续行为由其自行决定，Good Morning Technology, LLC 及其贡献者无法控制、审查或限制该等行为。用户应自行确保其使用、修改、部署、集成、分发或二次开发行为符合所在地适用法律法规、监管要求、制裁规则及第三方权利，并独立承担由此产生的全部风险、责任与后果。
+
+加密资产属于高风险新兴资产类别，包括稳定币在内的数字资产均可能发生剧烈波动、脱锚、流动性不足、技术故障、监管变化或价值归零等风险。本项目所有代码、文档及相关材料均按“现状”和“可用状态”提供。除适用法律另有强制规定外，Good Morning Technology, LLC 及其贡献者不因用户使用、无法使用、错误使用、违法使用、修改、部署、集成、分发、二次开发或依赖本项目而产生的任何直接或间接损失承担责任。
 
 ---
 
 <p align="center">
   <sub>
-    <b>Keywords:</b> USDT Payment Gateway · Crypto Payment · Multi-chain Payment · TRC20 Payment · ERC20 Payment · BEP20 Payment · 
+    <b>Keywords:</b> USDT Payment Gateway · Crypto Payment · Multi-chain Payment · TRC20 Payment · ERC20 Payment · BEP20 Payment ·
-    Self-hosted Crypto Gateway · OneAPI Payment · NewAPI Payment · 独角数卡支付 · 异次元发卡支付方式 · 
+    Self-hosted Crypto Gateway · OneAPI Payment · NewAPI Payment · 独角数卡支付 · 异次元发卡支付方式 ·
-    V2Board Payment · XBoard Payment · SSPanel 支付接口 · 
+    V2Board Payment · XBoard Payment · SSPanel 支付接口 ·
-    WordPress Crypto Payment · WHMCS USDT Payment · Polygon USDT · 
+    WordPress Crypto Payment · WHMCS USDT Payment · Polygon USDT ·
     Epusdt · Easy Payment USDT · Open Source Payment Gateway · 多链收款
   </sub>
 </p>

docker-compose.yaml

@@ -1,6 +1,6 @@
 services:
   epusdt:
-    image: gmwallet/epusdt:alpine
+    image: gmwallet/epusdt:latest
     restart: always
     build:
       context: .

plugins/dujiaoka/README.md

@@ -1,12 +0,0 @@
-## 使用方法
-### 注意此插件仅适用于独角数卡2.0.4版本以下，2.0.4版本或以上的独角数卡已经内置此插件，无需配置
-
-1.将`app`和`routes`目录覆盖到网站根目录。      
-2.在独角数卡后台添加一个支付方式。      
-
-| 支付选项 | 商户id | 商户key | 商户密钥 | 备注 |     
-| :-----| :----- | :----- | :----- |:-----|       
-| Epusdt | api接口认证token	 | 空 | epusdt收银台地址+/api/v1/order/create-transaction| 如果独角数卡和epusdt在同一服务器则填写`127.0.0.1`不要填域名，例如`http://127.0.0.1:8000/api/v1/order/create-transaction` |             
-
-示例：     
-![示例配置](../../wiki/img/dujiaoka_epusdt.png)

plugins/dujiaoka/app/Http/Controllers/Pay/EpusdtController.php

@@ -1,101 +0,0 @@
-<?php
-/**
- * The file was created by Assimon.
- *
- * @author    GMWalletApp<ashang@utf8.hk>
- * @copyright GMWalletApp<ashang@utf8.hk>
- * @link      http://utf8.hk/
- */
-
-namespace App\Http\Controllers\Pay;
-
-
-use App\Exceptions\RuleValidationException;
-use App\Http\Controllers\PayController;
-use GuzzleHttp\Client;
-use GuzzleHttp\Exception\GuzzleException;
-use Illuminate\Http\Request;
-
-class EpusdtController extends PayController
-{
-    public function gateway(string $payway, string $orderSN)
-    {
-        try {
-            // 加载网关
-            $this->loadGateWay($orderSN, $payway);
-            //构造要请求的参数数组，无需改动
-            $parameter = [
-                "amount" => (float)$this->order->actual_price,//原价
-                "order_id" => $this->order->order_sn, //可以是用户ID,站内商户订单号,用户名
-                'redirect_url' => route('epusdt-return', ['order_id' => $this->order->order_sn]),
-                'notify_url' => url($this->payGateway->pay_handleroute . '/notify_url'),
-            ];
-            $parameter['signature'] = $this->epusdtSign($parameter, $this->payGateway->merchant_id);
-            $client = new Client([
-                'headers' => [ 'Content-Type' => 'application/json' ]
-            ]);
-            $response = $client->post($this->payGateway->merchant_pem, ['body' => json_encode($parameter)]);
-            $body = json_decode($response->getBody()->getContents(), true);
-            if (!isset($body['status_code']) || $body['status_code'] != 200) {
-                return $this->err(__('dujiaoka.prompt.abnormal_payment_channel') . $body['message']);
-            }
-            return redirect()->away($body['data']['payment_url']);
-        } catch (RuleValidationException $exception) {
-        } catch (GuzzleException $exception) {
-            return $this->err($exception->getMessage());
-        }
-    }
-
-
-    private function epusdtSign(array $parameter, string $signKey)
-    {
-        ksort($parameter);
-        reset($parameter); //内部指针指向数组中的第一个元素
-        $sign = '';
-        $urls = '';
-        foreach ($parameter as $key => $val) {
-            if ($val == '') continue;
-            if ($key != 'signature') {
-                if ($sign != '') {
-                    $sign .= "&";
-                    $urls .= "&";
-                }
-                $sign .= "$key=$val"; //拼接为url参数形式
-                $urls .= "$key=" . urlencode($val); //拼接为url参数形式
-            }
-        }
-        $sign = md5($sign . $signKey);//密码追加进入开始MD5签名
-        return $sign;
-    }
-
-    public function notifyUrl(Request $request)
-    {
-        $data = $request->all();
-        $order = $this->orderService->detailOrderSN($data['order_id']);
-        if (!$order) {
-            return 'fail';
-        }
-        $payGateway = $this->payService->detail($order->pay_id);
-        if (!$payGateway) {
-            return 'fail';
-        }
-        $signature = $this->epusdtSign($data, $payGateway->merchant_id);
-        if ($data['signature'] != $signature) { //不合法的数据
-            return 'fail';  //返回失败 继续补单
-        } else {
-            //合法的数据
-            //业务处理
-            $this->orderProcessService->completedOrder($data['order_id'], $data['amount'], $data['trade_id']);
-            return 'ok';
-        }
-    }
-
-    public function returnUrl(Request $request)
-    {
-        $oid = $request->get('order_id');
-        // 异步通知还没到就跳转了，所以这里休眠2秒
-        sleep(2);
-        return redirect(url('detail-order-sn', ['orderSN' => $oid]));
-    }
-
-}

plugins/dujiaoka/routes/common/pay.php

@@ -1,56 +0,0 @@
-<?php
-/**
- * The file was created by Assimon.
- *
- * @author    GMWalletApp<ashang@utf8.hk>
- * @copyright GMWalletApp<ashang@utf8.hk>
- * @link      http://utf8.hk/
- */
-use Illuminate\Support\Facades\Route;
-
-Route::get('pay-gateway/{handle}/{payway}/{orderSN}', 'PayController@redirectGateway');
-
-// 支付相关
-Route::group(['prefix' => 'pay', 'namespace' => 'Pay', 'middleware' => ['dujiaoka.pay_gate_way']], function () {
-    // 支付宝
-    Route::get('alipay/{payway}/{orderSN}', 'AlipayController@gateway');
-    Route::post('alipay/notify_url', 'AlipayController@notifyUrl');
-    // 微信
-    Route::get('wepay/{payway}/{orderSN}', 'WepayController@gateway');
-    Route::post('wepay/notify_url', 'WepayController@notifyUrl');
-    // 码支付
-    Route::get('mapay/{payway}/{orderSN}', 'MapayController@gateway');
-    Route::post('mapay/notify_url', 'MapayController@notifyUrl');
-    // Paysapi
-    Route::get('paysapi/{payway}/{orderSN}', 'PaysapiController@gateway');
-    Route::post('paysapi/notify_url', 'PaysapiController@notifyUrl');
-    Route::get('paysapi/return_url', 'PaysapiController@returnUrl')->name('paysapi-return');
-    // payjs
-    Route::get('payjs/{payway}/{orderSN}', 'PayjsController@gateway');
-    Route::post('payjs/notify_url', 'PayjsController@notifyUrl');
-    // 易支付
-    Route::get('yipay/{payway}/{orderSN}', 'YipayController@gateway');
-    Route::get('yipay/notify_url', 'YipayController@notifyUrl');
-    Route::get('yipay/return_url', 'YipayController@returnUrl')->name('yipay-return');
-    // paypal
-    Route::get('paypal/{payway}/{orderSN}', 'PaypalPayController@gateway');
-    Route::get('paypal/return_url', 'PaypalPayController@returnUrl')->name('paypal-return');
-    Route::any('paypal/notify_url', 'PaypalPayController@notifyUrl');
-    // V免签
-    Route::get('vpay/{payway}/{orderSN}', 'VpayController@gateway');
-    Route::get('vpay/notify_url', 'VpayController@notifyUrl');
-    Route::get('vpay/return_url', 'VpayController@returnUrl')->name('vpay-return');
-    // stripe
-    Route::get('stripe/{payway}/{oid}','StripeController@gateway');
-    Route::get('stripe/return_url','StripeController@returnUrl');
-    Route::get('stripe/check','StripeController@check');
-    Route::get('stripe/charge','StripeController@charge');
-    // Coinbase
-    Route::get('coinbase/{payway}/{orderSN}', 'CoinbaseController@gateway');
-    Route::post('coinbase/notify_url', 'CoinbaseController@notifyUrl');
-    // epusdt
-    Route::get('epusdt/{payway}/{orderSN}', 'EpusdtController@gateway');
-    Route::post('epusdt/notify_url', 'EpusdtController@notifyUrl');
-    Route::get('epusdt/return_url', 'EpusdtController@returnUrl')->name('epusdt-return');
-
-});

sql/v0.0.1.sql

@@ -1,44 +0,0 @@
--- auto-generated definition
-create table orders
-(
-    id                   int auto_increment
-        primary key,
-    trade_id             varchar(32)    not null comment 'epusdt订单号',
-    order_id             varchar(32)    not null comment '客户交易id',
-    block_transaction_id varchar(128)   null comment '区块唯一编号',
-    actual_amount        decimal(19, 4) not null comment '订单实际需要支付的金额，保留4位小数',
-    amount               decimal(19, 4) not null comment '订单金额，保留4位小数',
-    token                varchar(50)    not null comment '所属钱包地址',
-    status               int default 1  not null comment '1：等待支付，2：支付成功，3：已过期',
-    notify_url           varchar(128)   not null comment '异步回调地址',
-    redirect_url         varchar(128)   null comment '同步回调地址',
-    callback_num         int default 0  null comment '回调次数',
-    callback_confirm     int default 2  null comment '回调是否已确认？ 1是 2否',
-    created_at           timestamp      null,
-    updated_at           timestamp      null,
-    deleted_at           timestamp      null,
-    constraint orders_order_id_uindex
-        unique (order_id),
-    constraint orders_trade_id_uindex
-        unique (trade_id)
-);
-
-create index orders_block_transaction_id_index
-    on orders (block_transaction_id);
-
--- auto-generated definition
-create table wallet_address
-(
-    id         int auto_increment
-        primary key,
-    token      varchar(50)   not null comment '钱包token',
-    status     int default 1 not null comment '1:启用 2:禁用',
-    created_at timestamp     null,
-    updated_at timestamp     null,
-    deleted_at timestamp     null
-)
-    comment '钱包表';
-
-create index wallet_address_token_index
-    on wallet_address (token);
-

src/.env.example

@@ -20,27 +20,6 @@ db_type=sqlite
 sqlite_database_filename=
 sqlite_table_prefix=
 
-# postgres config
-postgres_host=127.0.0.1
-postgres_port=3306
-postgres_user=mysql_user
-postgres_passwd=mysql_password
-postgres_database=database_name
-postgres_table_prefix=
-postgres_max_idle_conns=10
-postgres_max_open_conns=100
-postgres_max_life_time=6
-
-# mysql config
-mysql_host=127.0.0.1
-mysql_port=3306
-mysql_user=mysql_user
-mysql_passwd=mysql_password
-mysql_database=database_name
-mysql_table_prefix=
-mysql_max_idle_conns=10
-mysql_max_open_conns=100
-mysql_max_life_time=6
 
 # sqlite runtime store config
 runtime_sqlite_filename=epusdt-runtime.db

src/.goreleaser.yaml

@@ -15,7 +15,7 @@ builds:
     flags:
       - -trimpath
     ldflags:
-      - -s -w -X github.com/assimon/luuu/config.BuildVersion={{ .Version }} -X github.com/assimon/luuu/config.BuildCommit={{ .Commit }} -X github.com/assimon/luuu/config.BuildDate={{ .Date }}
+      - -s -w -X github.com/GMWalletApp/epusdt/config.BuildVersion={{ .Tag }} -X github.com/GMWalletApp/epusdt/config.BuildCommit={{ .Commit }} -X github.com/GMWalletApp/epusdt/config.BuildDate={{ .Date }}
     goos:
       - linux
       - darwin

src/bootstrap/bootstrap.go

@@ -22,7 +22,7 @@ func InitApp() {
 		log.Init()
 		dao.Init()
 		// Wire settings-table lookups into the config package so
-		// GetRateApiUrl / GetUsdtRate prefer DB-backed overrides.
+		// GetRateApiUrl / GetUsdtRate can consult admin-configured values.
 		config.SettingsGetString = func(key string) string {
 			return data.GetSettingString(key, "")
 		}
@@ -36,19 +36,18 @@ func InitApp() {
 				}
 			}
 		}
-		// config.Init() computes RateApiUrl before SettingsGetString is
-		// installed, so refresh the cache once DB-backed settings are available.
-		config.RateApiUrl = config.GetRateApiUrl()
 		// Seed admin account and JWT secret so the management console is
 		// immediately usable on a fresh install. Both are idempotent.
-		_, isNew, err := data.EnsureDefaultAdmin()
+		initialPassword, isNew, err := data.EnsureDefaultAdmin()
 		if err != nil {
 			color.Red.Printf("[bootstrap] ensure default admin err=%s\n", err)
 		}
 		if isNew {
 			color.Yellow.Println("╔════════════════════════════════════════════════════════════════════════╗")
-			color.Yellow.Println("║  Default admin account created. Fetch one-time password via API first!║")
+			color.Yellow.Println("║  Default admin account created. Save these credentials now.           ║")
-			color.Yellow.Printf("║  Username: admin                                                       ║\n")
+			color.Yellow.Printf("║  Username: %-54s║\n", "admin")
+			color.Yellow.Printf("║  Password: %-54s║\n", initialPassword)
+			color.Yellow.Println("║  The one-time password API remains available until first fetch.       ║")
 			color.Yellow.Println("║  GET /admin/api/v1/auth/init-password (one-time)                      ║")
 			color.Yellow.Println("╚════════════════════════════════════════════════════════════════════════╝")
 		}

src/config/config.go

@@ -3,11 +3,11 @@ package config
 import (
 	"errors"
 	"fmt"
+	"io"
 	"log"
 	"net/url"
 	"os"
 	"path/filepath"
-	"strconv"
 	"strings"
 	"time"
 
@@ -16,12 +16,6 @@ import (
 	"github.com/tidwall/gjson"
 )
 
-// parseFloat is the minimal helper used by the settings bridge; kept
-// here so settings_bridge.go stays import-free.
-func parseFloat(s string) (float64, error) {
-	return strconv.ParseFloat(strings.TrimSpace(s), 64)
-}
-
 var (
 	HTTPAccessLog      bool
 	SQLDebug           bool
@@ -34,8 +28,6 @@ var (
 	TgBotToken         string
 	TgProxy            string
 	TgManage           int64
-	UsdtRate           float64
-	RateApiUrl         string
 	BuildVersion       = "0.0.0-dev"
 	BuildCommit        = "none"
 	BuildDate          = "unknown"
@@ -64,6 +56,9 @@ func Init() {
 	LogLevel = normalizeLogLevel(viper.GetString("log_level"))
 	StaticPath = normalizeStaticURLPath(viper.GetString("static_path"))
 	StaticFilePath = filepath.Join(configRootPath, strings.TrimPrefix(StaticPath, "/"))
+	if err = ensureConfiguredStaticFiles(); err != nil {
+		panic(err)
+	}
 	RuntimePath = resolvePathFromBase(configRootPath, viper.GetString("runtime_root_path"), filepath.Join(configRootPath, "runtime"))
 	LogSavePath = resolvePathFromBase(RuntimePath, viper.GetString("log_save_path"), filepath.Join(RuntimePath, "logs"))
 	mustMkdir(RuntimePath)
@@ -76,8 +71,6 @@ func Init() {
 	TgBotToken = viper.GetString("tg_bot_token")
 	TgProxy = viper.GetString("tg_proxy")
 	TgManage = viper.GetInt64("tg_manage")
-
-	RateApiUrl = GetRateApiUrl()
 }
 
 func mustMkdir(path string) {
@@ -86,6 +79,93 @@ func mustMkdir(path string) {
 	}
 }
 
+func ensureConfiguredStaticFiles() error {
+	if strings.TrimSpace(StaticFilePath) == "" {
+		return nil
+	}
+	exePath, err := os.Executable()
+	if err != nil {
+		return err
+	}
+	exePath, err = filepath.EvalSymlinks(exePath)
+	if err != nil {
+		return err
+	}
+
+	srcDir := filepath.Join(filepath.Dir(exePath), "static")
+	srcInfo, err := os.Stat(srcDir)
+	if err != nil {
+		if errors.Is(err, os.ErrNotExist) {
+			return nil
+		}
+		return err
+	}
+	if !srcInfo.IsDir() {
+		return nil
+	}
+
+	srcAbs, err := filepath.Abs(srcDir)
+	if err != nil {
+		return err
+	}
+	dstAbs, err := filepath.Abs(StaticFilePath)
+	if err != nil {
+		return err
+	}
+	if srcAbs == dstAbs {
+		return nil
+	}
+
+	return copyMissingStaticFiles(srcAbs, dstAbs)
+}
+
+func copyMissingStaticFiles(srcDir, dstDir string) error {
+	return filepath.WalkDir(srcDir, func(path string, d os.DirEntry, err error) error {
+		if err != nil {
+			return err
+		}
+		rel, err := filepath.Rel(srcDir, path)
+		if err != nil {
+			return err
+		}
+		dstPath := filepath.Join(dstDir, rel)
+		if d.IsDir() {
+			return os.MkdirAll(dstPath, 0o755)
+		}
+		if _, err = os.Stat(dstPath); err == nil {
+			return nil
+		} else if !errors.Is(err, os.ErrNotExist) {
+			return err
+		}
+		if err = os.MkdirAll(filepath.Dir(dstPath), 0o755); err != nil {
+			return err
+		}
+		return copyFile(path, dstPath)
+	})
+}
+
+func copyFile(srcPath, dstPath string) error {
+	in, err := os.Open(srcPath)
+	if err != nil {
+		return err
+	}
+	defer in.Close()
+
+	out, err := os.OpenFile(dstPath, os.O_CREATE|os.O_EXCL|os.O_WRONLY, 0o644)
+	if err != nil {
+		if errors.Is(err, os.ErrExist) {
+			return nil
+		}
+		return err
+	}
+
+	if _, err = io.Copy(out, in); err != nil {
+		_ = out.Close()
+		return err
+	}
+	return out.Close()
+}
+
 func normalizeLogLevel(level string) string {
 	switch strings.ToLower(strings.TrimSpace(level)) {
 	case "debug", "info", "warn", "error":
@@ -266,22 +346,27 @@ func GetRateForCoin(coin string, base string) float64 {
 	if coin == base {
 		return 1
 	}
-	if coin == "usdt" {
+	if forcedRate := getForcedRateForCoin(coin, base); forcedRate > 0 {
-		switch base {
+		return forcedRate
-		case "usd":
+	}
-			return 1
+	if coin == "usdt" && base == "usd" {
-		case "cny":
+		return 1
-			usdtRate := GetUsdtRate()
+	}
-			if usdtRate > 0 {
+	return getRateForCoinFromAPI(coin, base)
-				return 1 / usdtRate
+}
-			}
+
+func getForcedRateForCoin(coin string, base string) float64 {
+	raw := strings.TrimSpace(settingsForcedRateList())
+	if raw != "" {
+		if rate := gjson.Get(raw, base+"."+coin).Float(); rate > 0 {
+			return rate
 		}
 	}
+	return 0
+}
 
-	baseURL := RateApiUrl
+func getRateForCoinFromAPI(coin string, base string) float64 {
-	if baseURL == "" {
+	baseURL := GetRateApiUrl()
-		baseURL = GetRateApiUrl()
-	}
 	if baseURL == "" {
 		log.Printf("rate api url is empty")
 		return 0.0
@@ -313,19 +398,18 @@ func GetRateForCoin(coin string, base string) float64 {
 }
 
 func GetUsdtRate() float64 {
-	// Prefer the DB-backed override (admin-configurable). Fall back to
+	// rate.forced_rate_list stores token amount per one base currency unit.
-	// the legacy .env var, then the hardcoded 6.4 default.
+	// GetUsdtRate returns the inverse display value: CNY per USDT.
-	if forced := settingsForcedUsdtRate(); forced > 0 {
+	if forcedRate := getForcedRateForCoin("usdt", "cny"); forcedRate > 0 {
-		return forced
+		return 1 / forcedRate
 	}
-	forcedUsdtRate := viper.GetFloat64("forced_usdt_rate")
+
-	if forcedUsdtRate > 0 {
+	apiRate := getRateForCoinFromAPI("usdt", "cny")
-		return forcedUsdtRate
+	if apiRate > 0 {
+		return 1 / apiRate
 	}
-	if UsdtRate <= 0 {
+	log.Printf("usdt/cny rate unavailable: rate.forced_rate_list has no positive cny.usdt entry and rate api returned no data")
-		return 6.4
+	return 0
-	}
-	return UsdtRate
 }
 
 func GetOrderExpirationTime() int {

src/config/config_test.go

@@ -1,11 +1,52 @@
 package config
 
 import (
+	"io"
+	"math"
+	"net/http"
 	"os"
 	"path/filepath"
+	"strings"
 	"testing"
+	"time"
+
+	"github.com/GMWalletApp/epusdt/util/http_client"
+	"github.com/go-resty/resty/v2"
+	"github.com/spf13/viper"
 )
 
+func installSettingsGetter(t *testing.T, values map[string]string) {
+	t.Helper()
+
+	oldGetter := SettingsGetString
+	SettingsGetString = func(key string) string {
+		return values[key]
+	}
+	t.Cleanup(func() {
+		SettingsGetString = oldGetter
+	})
+}
+
+type roundTripFunc func(*http.Request) (*http.Response, error)
+
+func (f roundTripFunc) RoundTrip(req *http.Request) (*http.Response, error) {
+	return f(req)
+}
+
+func installMockHTTPClient(t *testing.T, handler roundTripFunc) {
+	t.Helper()
+
+	oldFactory := http_client.ClientFactory
+	http_client.ClientFactory = func() *resty.Client {
+		client := resty.NewWithClient(&http.Client{Transport: handler})
+		client.SetTimeout(10 * time.Second)
+		return client
+	}
+	t.Cleanup(func() {
+		http_client.ClientFactory = oldFactory
+	})
+}
+
 func TestNormalizeConfiguredPathUsesExplicitFile(t *testing.T) {
 	t.Helper()
 
@@ -135,3 +176,213 @@ func TestResolveConfigFilePathPrefersExplicitOverEnv(t *testing.T) {
 		t.Fatalf("config path = %s, want %s", got, flagPath)
 	}
 }
+
+func TestCopyMissingStaticFilesCopiesAssetsWithoutOverwriting(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "app-static")
+	dst := filepath.Join(root, "data-static")
+
+	if err := os.MkdirAll(filepath.Join(src, "images"), 0o755); err != nil {
+		t.Fatalf("mkdir source: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(src, "index.html"), []byte("source-index"), 0o644); err != nil {
+		t.Fatalf("write source index: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(src, "payment.js"), []byte("source-payment"), 0o644); err != nil {
+		t.Fatalf("write source payment: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(src, "images", "logo.png"), []byte("source-logo"), 0o644); err != nil {
+		t.Fatalf("write source logo: %v", err)
+	}
+
+	if err := os.MkdirAll(dst, 0o755); err != nil {
+		t.Fatalf("mkdir destination: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(dst, "index.html"), []byte("custom-index"), 0o644); err != nil {
+		t.Fatalf("write existing destination index: %v", err)
+	}
+
+	if err := copyMissingStaticFiles(src, dst); err != nil {
+		t.Fatalf("copy missing static files: %v", err)
+	}
+
+	index, err := os.ReadFile(filepath.Join(dst, "index.html"))
+	if err != nil {
+		t.Fatalf("read destination index: %v", err)
+	}
+	if string(index) != "custom-index" {
+		t.Fatalf("existing index was overwritten: %q", string(index))
+	}
+
+	payment, err := os.ReadFile(filepath.Join(dst, "payment.js"))
+	if err != nil {
+		t.Fatalf("read copied payment: %v", err)
+	}
+	if string(payment) != "source-payment" {
+		t.Fatalf("payment.js = %q, want source-payment", string(payment))
+	}
+
+	logo, err := os.ReadFile(filepath.Join(dst, "images", "logo.png"))
+	if err != nil {
+		t.Fatalf("read copied nested asset: %v", err)
+	}
+	if string(logo) != "source-logo" {
+		t.Fatalf("logo.png = %q, want source-logo", string(logo))
+	}
+}
+
+func TestGetUsdtRatePrefersForcedRateList(t *testing.T) {
+	viper.Reset()
+	t.Cleanup(viper.Reset)
+	t.Setenv("API_RATE_URL", "")
+
+	apiCalled := false
+	installMockHTTPClient(t, func(r *http.Request) (*http.Response, error) {
+		apiCalled = true
+		return &http.Response{
+			StatusCode: http.StatusInternalServerError,
+			Status:     http.StatusText(http.StatusInternalServerError),
+			Header:     make(http.Header),
+			Body:       io.NopCloser(strings.NewReader("")),
+			Request:    r,
+		}, nil
+	})
+
+	installSettingsGetter(t, map[string]string{
+		"rate.forced_rate_list": `{"cny":{"usdt":0.13793103448275862},"usd":{"trx":123.45}}`,
+		"rate.api_url":          "https://rate.example.test",
+	})
+
+	got := GetUsdtRate()
+	if math.Abs(got-7.25) > 1e-9 {
+		t.Fatalf("GetUsdtRate() = %v, want 7.25", got)
+	}
+	if rate := GetRateForCoin("trx", "usd"); rate != 123.45 {
+		t.Fatalf("GetRateForCoin(trx, usd) = %v, want 123.45", rate)
+	}
+	if apiCalled {
+		t.Fatalf("rate API should not be called when rate.forced_rate_list has positive rate")
+	}
+}
+
+func TestGetUsdtRateUsesAPIWhenAdminOverrideIsNotPositive(t *testing.T) {
+	viper.Reset()
+	t.Cleanup(viper.Reset)
+	t.Setenv("API_RATE_URL", "")
+
+	installMockHTTPClient(t, func(r *http.Request) (*http.Response, error) {
+		if r.URL.Path != "/cny.json" {
+			t.Fatalf("rate api path = %s, want /cny.json", r.URL.Path)
+		}
+		return &http.Response{
+			StatusCode: http.StatusOK,
+			Status:     "200 OK",
+			Header:     http.Header{"Content-Type": []string{"application/json"}},
+			Body:       io.NopCloser(strings.NewReader(`{"cny":{"usdt":0.14635}}`)),
+			Request:    r,
+		}, nil
+	})
+
+	installSettingsGetter(t, map[string]string{
+		"rate.forced_rate_list": `{"cny":{"usdt":0}}`,
+		"rate.api_url":          "https://rate.example.test",
+	})
+
+	got := GetUsdtRate()
+	want := 1 / 0.14635
+	if math.Abs(got-want) > 1e-9 {
+		t.Fatalf("GetUsdtRate() = %v, want %v", got, want)
+	}
+
+	rate := GetRateForCoin("usdt", "cny")
+	if math.Abs(rate-0.14635) > 1e-9 {
+		t.Fatalf("GetRateForCoin(usdt, cny) = %v, want 0.14635", rate)
+	}
+}
+
+func TestGetRateForCoinUsesAPIWhenForcedPairMissing(t *testing.T) {
+	viper.Reset()
+	t.Cleanup(viper.Reset)
+	t.Setenv("API_RATE_URL", "")
+
+	installMockHTTPClient(t, func(r *http.Request) (*http.Response, error) {
+		if r.URL.Path != "/cny.json" {
+			t.Fatalf("rate api path = %s, want /cny.json", r.URL.Path)
+		}
+		return &http.Response{
+			StatusCode: http.StatusOK,
+			Status:     "200 OK",
+			Header:     http.Header{"Content-Type": []string{"application/json"}},
+			Body:       io.NopCloser(strings.NewReader(`{"cny":{"usdt":0.14635}}`)),
+			Request:    r,
+		}, nil
+	})
+
+	installSettingsGetter(t, map[string]string{
+		"rate.forced_rate_list": `{"usd":{"trx":123.45}}`,
+		"rate.api_url":          "https://rate.example.test",
+	})
+
+	rate := GetRateForCoin("usdt", "cny")
+	if math.Abs(rate-0.14635) > 1e-9 {
+		t.Fatalf("GetRateForCoin(usdt, cny) = %v, want 0.14635", rate)
+	}
+}
+
+func TestGetUsdtRateReturnsZeroWhenAPIUnavailableWithoutAdminOverride(t *testing.T) {
+	viper.Reset()
+	t.Cleanup(viper.Reset)
+	t.Setenv("API_RATE_URL", "")
+
+	installMockHTTPClient(t, func(r *http.Request) (*http.Response, error) {
+		return &http.Response{
+			StatusCode: http.StatusBadGateway,
+			Status:     "502 Bad Gateway",
+			Header:     make(http.Header),
+			Body:       io.NopCloser(strings.NewReader("")),
+			Request:    r,
+		}, nil
+	})
+
+	installSettingsGetter(t, map[string]string{
+		"rate.forced_rate_list": `{"cny":{"usdt":0}}`,
+		"rate.api_url":          "https://rate.example.test",
+	})
+
+	if got := GetUsdtRate(); got != 0 {
+		t.Fatalf("GetUsdtRate() = %v, want 0", got)
+	}
+	if got := GetRateForCoin("usdt", "cny"); got != 0 {
+		t.Fatalf("GetRateForCoin(usdt, cny) = %v, want 0", got)
+	}
+}
+
+func TestGetRateForCoinCallsRateAPIOnceForUsdtCnyFailure(t *testing.T) {
+	viper.Reset()
+	t.Cleanup(viper.Reset)
+	t.Setenv("API_RATE_URL", "")
+
+	callCount := 0
+	installMockHTTPClient(t, func(r *http.Request) (*http.Response, error) {
+		callCount++
+		return &http.Response{
+			StatusCode: http.StatusBadGateway,
+			Status:     "502 Bad Gateway",
+			Header:     make(http.Header),
+			Body:       io.NopCloser(strings.NewReader("")),
+			Request:    r,
+		}, nil
+	})
+
+	installSettingsGetter(t, map[string]string{
+		"rate.forced_rate_list": `{"cny":{"usdt":0}}`,
+		"rate.api_url":          "https://rate.example.test",
+	})
+
+	if got := GetRateForCoin("usdt", "cny"); got != 0 {
+		t.Fatalf("GetRateForCoin(usdt, cny) = %v, want 0", got)
+	}
+	if callCount != 1 {
+		t.Fatalf("rate api call count = %d, want 1", callCount)
+	}
+}

src/config/settings_bridge.go

@@ -5,7 +5,7 @@ package config
 // create a cycle via `model/dao -> config`.
 //
 // If unset (e.g. during early startup or tests) the getters return the
-// zero string / 0 and callers fall through to the .env / default path.
+// zero string / 0 and callers apply their own fallback behavior.
 
 // SettingsGetString is installed by bootstrap.Init with a closure that
 // reads from the settings table. Runtime-only.
@@ -18,17 +18,9 @@ func settingsRateApiUrl() string {
 	return SettingsGetString("rate.api_url")
 }
 
-func settingsForcedUsdtRate() float64 {
+func settingsForcedRateList() string {
 	if SettingsGetString == nil {
-		return 0
+		return ""
 	}
-	raw := SettingsGetString("rate.forced_usdt_rate")
+	return SettingsGetString("rate.forced_rate_list")
-	if raw == "" {
-		return 0
-	}
-	f, err := parseFloat(raw)
-	if err != nil {
-		return 0
-	}
-	return f
 }

src/controller/admin/api_key_controller.go

@@ -3,12 +3,12 @@ package admin
 import (
 	"crypto/rand"
 	"encoding/hex"
-	"errors"
 	"strconv"
 	"strings"
 
 	"github.com/GMWalletApp/epusdt/model/data"
 	"github.com/GMWalletApp/epusdt/model/mdb"
+	"github.com/GMWalletApp/epusdt/util/constant"
 	"github.com/labstack/echo/v4"
 )
 
@@ -79,7 +79,7 @@ func (c *BaseAdminController) ListApiKeys(ctx echo.Context) error {
 func (c *BaseAdminController) CreateApiKey(ctx echo.Context) error {
 	req := new(CreateApiKeyRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	if err := c.ValidateStruct(ctx, req); err != nil {
 		return c.FailJson(ctx, err)
@@ -150,11 +150,11 @@ func isUniqueViolation(err error) bool {
 func (c *BaseAdminController) UpdateApiKey(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	req := new(UpdateApiKeyRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	fields := map[string]interface{}{}
 	if req.Name != nil {
@@ -187,11 +187,11 @@ func (c *BaseAdminController) UpdateApiKey(ctx echo.Context) error {
 func (c *BaseAdminController) ChangeApiKeyStatus(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	req := new(ChangeApiKeyStatusRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	if err := c.ValidateStruct(ctx, req); err != nil {
 		return c.FailJson(ctx, err)
@@ -215,7 +215,7 @@ func (c *BaseAdminController) ChangeApiKeyStatus(ctx echo.Context) error {
 func (c *BaseAdminController) RotateApiKeySecret(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	secret := randomHex(32)
 	if err := data.UpdateApiKeyFields(id, map[string]interface{}{"secret_key": secret}); err != nil {
@@ -239,7 +239,7 @@ func (c *BaseAdminController) RotateApiKeySecret(ctx echo.Context) error {
 func (c *BaseAdminController) DeleteApiKey(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	if err := data.DeleteApiKeyByID(id); err != nil {
 		return c.FailJson(ctx, err)
@@ -262,14 +262,14 @@ func (c *BaseAdminController) DeleteApiKey(ctx echo.Context) error {
 func (c *BaseAdminController) GetApiKeyStats(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	row, err := data.GetApiKeyByID(id)
 	if err != nil {
 		return c.FailJson(ctx, err)
 	}
 	if row.ID == 0 {
-		return c.FailJson(ctx, errors.New("api key not found"))
+		return c.FailJson(ctx, constant.ApiKeyNotFoundErr)
 	}
 	return c.SucJson(ctx, map[string]interface{}{
 		"call_count":   row.CallCount,
@@ -291,14 +291,14 @@ func (c *BaseAdminController) GetApiKeyStats(ctx echo.Context) error {
 func (c *BaseAdminController) GetApiKeySecret(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	row, err := data.GetApiKeyByID(id)
 	if err != nil {
 		return c.FailJson(ctx, err)
 	}
 	if row.ID == 0 {
-		return c.FailJson(ctx, errors.New("api key not found"))
+		return c.FailJson(ctx, constant.ApiKeyNotFoundErr)
 	}
 	return c.SucJson(ctx, map[string]string{"secret_key": row.SecretKey})
 }

src/controller/admin/auth_controller.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/GMWalletApp/epusdt/model/data"
 	"github.com/GMWalletApp/epusdt/model/mdb"
+	"github.com/GMWalletApp/epusdt/util/constant"
 	appjwt "github.com/GMWalletApp/epusdt/util/jwt"
 	"github.com/labstack/echo/v4"
 )
@@ -53,7 +54,7 @@ type InitialPasswordResponse struct {
 func (c *BaseAdminController) Login(ctx echo.Context) error {
 	req := new(LoginRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	if err := c.ValidateStruct(ctx, req); err != nil {
 		return c.FailJson(ctx, err)
@@ -63,10 +64,10 @@ func (c *BaseAdminController) Login(ctx echo.Context) error {
 		return c.FailJson(ctx, err)
 	}
 	if user.ID == 0 || !data.VerifyPassword(user.PasswordHash, req.Password) {
-		return c.FailJson(ctx, errors.New("invalid username or password"))
+		return c.FailJson(ctx, constant.AdminInvalidCredentialErr)
 	}
 	if user.Status != mdb.AdminUserStatusEnable {
-		return c.FailJson(ctx, errors.New("user disabled"))
+		return c.FailJson(ctx, constant.AdminUserDisabledErr)
 	}
 	token, err := appjwt.Sign(user.ID, user.Username)
 	if err != nil {
@@ -94,6 +95,9 @@ func (c *BaseAdminController) Login(ctx echo.Context) error {
 func (c *BaseAdminController) GetInitialPassword(ctx echo.Context) error {
 	password, err := data.ConsumeInitialAdminPassword()
 	if err != nil {
+		if errors.Is(err, data.ErrInitAdminPasswordAlreadyFetched) || errors.Is(err, data.ErrInitAdminPasswordUnavailable) {
+			return c.FailJson(ctx, constant.InitialAdminPasswordErr)
+		}
 		return c.FailJson(ctx, err)
 	}
 	return c.SucJson(ctx, InitialPasswordResponse{
@@ -144,14 +148,14 @@ func (c *BaseAdminController) Logout(ctx echo.Context) error {
 func (c *BaseAdminController) Me(ctx echo.Context) error {
 	uid := currentAdminUserID(ctx)
 	if uid == 0 {
-		return c.FailJson(ctx, errors.New("unauthorized"))
+		return c.FailJson(ctx, constant.AdminUnauthorizedErr)
 	}
 	user, err := data.GetAdminUserByID(uid)
 	if err != nil {
 		return c.FailJson(ctx, err)
 	}
 	if user.ID == 0 {
-		return c.FailJson(ctx, errors.New("user not found"))
+		return c.FailJson(ctx, constant.AdminUserNotFoundErr)
 	}
 	// Warn the frontend when the operator hasn't changed the seeded
 	// initial password.
@@ -176,11 +180,11 @@ func (c *BaseAdminController) Me(ctx echo.Context) error {
 func (c *BaseAdminController) ChangePassword(ctx echo.Context) error {
 	uid := currentAdminUserID(ctx)
 	if uid == 0 {
-		return c.FailJson(ctx, errors.New("unauthorized"))
+		return c.FailJson(ctx, constant.AdminUnauthorizedErr)
 	}
 	req := new(ChangePasswordRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	if err := c.ValidateStruct(ctx, req); err != nil {
 		return c.FailJson(ctx, err)
@@ -190,7 +194,7 @@ func (c *BaseAdminController) ChangePassword(ctx echo.Context) error {
 		return c.FailJson(ctx, err)
 	}
 	if user.ID == 0 || !data.VerifyPassword(user.PasswordHash, req.OldPassword) {
-		return c.FailJson(ctx, errors.New("old password incorrect"))
+		return c.FailJson(ctx, constant.AdminOldPasswordErr)
 	}
 	if err := data.UpdateAdminUserPassword(uid, req.NewPassword); err != nil {
 		return c.FailJson(ctx, err)

src/controller/admin/chain_controller.go

@@ -2,6 +2,7 @@ package admin
 
 import (
 	"github.com/GMWalletApp/epusdt/model/data"
+	"github.com/GMWalletApp/epusdt/util/constant"
 	"github.com/labstack/echo/v4"
 )
 
@@ -49,7 +50,7 @@ func (c *BaseAdminController) UpdateChain(ctx echo.Context) error {
 	network := ctx.Param("network")
 	req := new(UpdateChainRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	fields := map[string]interface{}{}
 	if req.Enabled != nil {

src/controller/admin/chain_token_controller.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/GMWalletApp/epusdt/model/data"
 	"github.com/GMWalletApp/epusdt/model/mdb"
+	"github.com/GMWalletApp/epusdt/util/constant"
 	"github.com/labstack/echo/v4"
 )
 
@@ -65,7 +66,7 @@ func (c *BaseAdminController) ListChainTokens(ctx echo.Context) error {
 func (c *BaseAdminController) CreateChainToken(ctx echo.Context) error {
 	req := new(CreateChainTokenRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	if err := c.ValidateStruct(ctx, req); err != nil {
 		return c.FailJson(ctx, err)
@@ -107,11 +108,11 @@ func (c *BaseAdminController) CreateChainToken(ctx echo.Context) error {
 func (c *BaseAdminController) UpdateChainToken(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	req := new(UpdateChainTokenRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	fields := map[string]interface{}{}
 	if req.ContractAddress != nil {
@@ -147,11 +148,11 @@ func (c *BaseAdminController) UpdateChainToken(ctx echo.Context) error {
 func (c *BaseAdminController) ChangeChainTokenStatus(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	req := new(ChangeChainTokenStatusRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	if err := data.UpdateChainTokenFields(id, map[string]interface{}{"enabled": req.Enabled}); err != nil {
 		return c.FailJson(ctx, err)
@@ -172,7 +173,7 @@ func (c *BaseAdminController) ChangeChainTokenStatus(ctx echo.Context) error {
 func (c *BaseAdminController) DeleteChainToken(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	if err := data.DeleteChainTokenByID(id); err != nil {
 		return c.FailJson(ctx, err)

src/controller/admin/dashboard_controller.go

@@ -49,16 +49,18 @@ type RotateSecretResponse struct {
 
 // BatchImportResult is one row in the batch import response.
 type BatchImportResult struct {
-	Address string `json:"address" example:"TTestTronAddress001"`
+	Address   string `json:"address" example:"TTestTronAddress001"`
-	OK      bool   `json:"ok" example:"true"`
+	OK        bool   `json:"ok" example:"true"`
-	Error   string `json:"error,omitempty" example:""`
+	ErrorCode int    `json:"error_code,omitempty" example:"10001"`
+	Error     string `json:"error,omitempty" example:"wallet address already exists"`
 }
 
 // SettingsUpsertResult is one row in the settings upsert response.
 type SettingsUpsertResult struct {
-	Key   string `json:"key" example:"rate.api_url"`
+	Key       string `json:"key" example:"rate.api_url"`
-	OK    bool   `json:"ok" example:"true"`
+	OK        bool   `json:"ok" example:"true"`
-	Error string `json:"error,omitempty" example:""`
+	ErrorCode int    `json:"error_code,omitempty" example:"10043"`
+	Error     string `json:"error,omitempty" example:"invalid setting item"`
 }
 
 // Overview returns the top-card numbers for the dashboard landing page.

src/controller/admin/notification_controller.go

@@ -2,7 +2,6 @@ package admin
 
 import (
 	"encoding/json"
-	"errors"
 	"strconv"
 	"strings"
 
@@ -10,6 +9,7 @@ import (
 	"github.com/GMWalletApp/epusdt/model/mdb"
 	"github.com/GMWalletApp/epusdt/notify"
 	"github.com/GMWalletApp/epusdt/telegram"
+	"github.com/GMWalletApp/epusdt/util/constant"
 	"github.com/labstack/echo/v4"
 )
 
@@ -69,7 +69,7 @@ func (c *BaseAdminController) ListNotificationChannels(ctx echo.Context) error {
 func (c *BaseAdminController) CreateNotificationChannel(ctx echo.Context) error {
 	req := new(CreateNotificationChannelRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	req.Type = strings.ToLower(strings.TrimSpace(req.Type))
 	if err := c.ValidateStruct(ctx, req); err != nil {
@@ -120,7 +120,7 @@ func (c *BaseAdminController) CreateNotificationChannel(ctx echo.Context) error
 func (c *BaseAdminController) UpdateNotificationChannel(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	existing, err := data.GetNotificationChannelByID(id)
 	if err != nil {
@@ -130,7 +130,7 @@ func (c *BaseAdminController) UpdateNotificationChannel(ctx echo.Context) error
 
 	req := new(UpdateNotificationChannelRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	fields := map[string]interface{}{}
 	if req.Name != nil {
@@ -175,7 +175,7 @@ func (c *BaseAdminController) UpdateNotificationChannel(ctx echo.Context) error
 func (c *BaseAdminController) ChangeNotificationChannelStatus(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	existing, err := data.GetNotificationChannelByID(id)
 	if err != nil {
@@ -185,7 +185,7 @@ func (c *BaseAdminController) ChangeNotificationChannelStatus(ctx echo.Context)
 
 	req := new(ChangeChannelStatusRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	if err := data.UpdateNotificationChannelFields(id, map[string]interface{}{"enabled": req.Enabled}); err != nil {
 		return c.FailJson(ctx, err)
@@ -209,7 +209,7 @@ func (c *BaseAdminController) ChangeNotificationChannelStatus(ctx echo.Context)
 func (c *BaseAdminController) DeleteNotificationChannel(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	existing, err := data.GetNotificationChannelByID(id)
 	if err != nil {
@@ -230,12 +230,12 @@ func (c *BaseAdminController) DeleteNotificationChannel(ctx echo.Context) error
 // + chat_id; webhook/email kept loose until those senders exist.
 func validateChannelConfig(channelType string, cfg map[string]interface{}) error {
 	if cfg == nil {
-		return errors.New("config required")
+		return constant.NotificationConfigErr
 	}
 	if channelType == mdb.NotificationTypeTelegram {
 		configJSON, _ := json.Marshal(cfg)
 		if _, err := notify.ParseTelegramConfig(string(configJSON)); err != nil {
-			return err
+			return constant.NotificationConfigErr
 		}
 	}
 	return nil
@@ -260,10 +260,10 @@ func normalizeChannelEvents(raw interface{}) (map[string]bool, error) {
 			case "1", "true", "on", "yes":
 				return true, nil
 			default:
-				return false, errors.New("invalid boolean string")
+				return false, constant.NotificationEventsErr
 			}
 		default:
-			return false, errors.New("invalid event value type")
+			return false, constant.NotificationEventsErr
 		}
 	}
 
@@ -299,7 +299,7 @@ func normalizeChannelEvents(raw interface{}) (map[string]bool, error) {
 		for _, v := range t {
 			s, ok := v.(string)
 			if !ok {
-				return nil, errors.New("events array must contain strings")
+				return nil, constant.NotificationEventsErr
 			}
 			s = trimKey(s)
 			if s == "" {
@@ -309,6 +309,6 @@ func normalizeChannelEvents(raw interface{}) (map[string]bool, error) {
 		}
 		return out, nil
 	default:
-		return nil, errors.New("events must be object or string array")
+		return nil, constant.NotificationEventsErr
 	}
 }

src/controller/admin/order_controller.go

@@ -2,7 +2,6 @@ package admin
 
 import (
 	"encoding/csv"
-	"errors"
 	"fmt"
 	"net/http"
 	"strconv"
@@ -13,14 +12,11 @@ import (
 	"github.com/GMWalletApp/epusdt/model/mdb"
 	"github.com/GMWalletApp/epusdt/model/request"
 	"github.com/GMWalletApp/epusdt/model/service"
+	"github.com/GMWalletApp/epusdt/util/constant"
+	"github.com/GMWalletApp/epusdt/util/log"
 	"github.com/labstack/echo/v4"
 )
 
-// MarkPaidRequest is the payload for manually marking an order as paid.
-type MarkPaidRequest struct {
-	BlockTransactionId string `json:"block_transaction_id" validate:"required" example:"0xabc123def456..."`
-}
-
 // OrderListResponse wraps the paginated order list.
 type OrderListResponse struct {
 	List     []mdb.Orders `json:"list"`
@@ -92,7 +88,7 @@ func (c *BaseAdminController) GetOrder(ctx echo.Context) error {
 		return c.FailJson(ctx, err)
 	}
 	if order.ID == 0 {
-		return c.FailJson(ctx, errors.New("order not found"))
+		return c.FailJson(ctx, constant.OrderNotExists)
 	}
 	return c.SucJson(ctx, order)
 }
@@ -114,17 +110,17 @@ func (c *BaseAdminController) CloseOrder(ctx echo.Context) error {
 		return c.FailJson(ctx, err)
 	}
 	if order.ID == 0 {
-		return c.FailJson(ctx, errors.New("order not found"))
+		return c.FailJson(ctx, constant.OrderNotExists)
 	}
 	if order.Status != mdb.StatusWaitPay {
-		return c.FailJson(ctx, errors.New("order is not waiting payment"))
+		return c.FailJson(ctx, constant.OrderNotWaitPay)
 	}
 	ok, err := data.CloseOrderManually(tradeID)
 	if err != nil {
 		return c.FailJson(ctx, err)
 	}
 	if !ok {
-		return c.FailJson(ctx, errors.New("close failed (concurrent state change)"))
+		return c.FailJson(ctx, constant.OrderStatusConflict)
 	}
 	// Release the transaction lock so the amount slot becomes reusable.
 	_ = data.UnLockTransaction(order.Network, order.ReceiveAddress, order.Token, order.ActualAmount)
@@ -141,41 +137,29 @@ func (c *BaseAdminController) CloseOrder(ctx echo.Context) error {
 // @Accept       json
 // @Produce      json
 // @Param        trade_id path string true "Trade ID"
-// @Param        request body admin.MarkPaidRequest true "Block transaction ID"
+// @Param        request body request.ManualPaymentRequest true "Block transaction ID"
 // @Success      200 {object} response.ApiResponse
 // @Failure      400 {object} response.ApiResponse
 // @Router       /admin/api/v1/orders/{trade_id}/mark-paid [post]
 func (c *BaseAdminController) MarkOrderPaid(ctx echo.Context) error {
 	tradeID := ctx.Param("trade_id")
-	req := new(MarkPaidRequest)
+	adminUserID := currentAdminUserID(ctx)
+	req := new(request.ManualPaymentRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		log.Sugar.Warnf("[admin-order] mark-paid bind failed admin_user_id=%d trade_id=%s err=%v", adminUserID, tradeID, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
+	req.BlockTransactionId = strings.TrimSpace(req.BlockTransactionId)
 	if err := c.ValidateStruct(ctx, req); err != nil {
+		log.Sugar.Warnf("[admin-order] mark-paid validation failed admin_user_id=%d trade_id=%s block_transaction_id=%s err=%v", adminUserID, tradeID, req.BlockTransactionId, err)
 		return c.FailJson(ctx, err)
 	}
-	order, err := data.GetOrderInfoByTradeId(tradeID)
+	resp, err := service.SubmitManualPayment(tradeID, req.BlockTransactionId)
-	if err != nil {
-		return c.FailJson(ctx, err)
-	}
-	if order.ID == 0 {
-		return c.FailJson(ctx, errors.New("order not found"))
-	}
-	if order.Status != mdb.StatusWaitPay {
-		return c.FailJson(ctx, errors.New("order is not waiting payment"))
-	}
-	err = service.OrderProcessing(&request.OrderProcessingRequest{
-		ReceiveAddress:     order.ReceiveAddress,
-		Currency:           order.Currency,
-		Token:              order.Token,
-		Network:            order.Network,
-		Amount:             order.ActualAmount,
-		TradeId:            order.TradeId,
-		BlockTransactionId: req.BlockTransactionId,
-	})
 	if err != nil {
+		log.Sugar.Warnf("[admin-order] mark-paid failed admin_user_id=%d trade_id=%s block_transaction_id=%s err=%v", adminUserID, tradeID, req.BlockTransactionId, err)
 		return c.FailJson(ctx, err)
 	}
+	log.Sugar.Infof("[admin-order] mark-paid success admin_user_id=%d trade_id=%s block_transaction_id=%s", adminUserID, tradeID, resp.BlockTransactionId)
 	return c.SucJson(ctx, nil)
 }
 
@@ -193,13 +177,38 @@ func (c *BaseAdminController) MarkOrderPaid(ctx echo.Context) error {
 // @Router       /admin/api/v1/orders/{trade_id}/resend-callback [post]
 func (c *BaseAdminController) ResendCallback(ctx echo.Context) error {
 	tradeID := ctx.Param("trade_id")
+	adminUserID := currentAdminUserID(ctx)
+	order, err := data.GetOrderInfoByTradeId(tradeID)
+	if err != nil {
+		log.Sugar.Warnf("[admin-order] resend-callback load failed admin_user_id=%d trade_id=%s err=%v", adminUserID, tradeID, err)
+		return c.FailJson(ctx, err)
+	}
+	if order.ID == 0 {
+		err = constant.OrderNotExists
+		log.Sugar.Warnf("[admin-order] resend-callback rejected admin_user_id=%d trade_id=%s err=%v", adminUserID, tradeID, err)
+		return c.FailJson(ctx, err)
+	}
+	if order.Status != mdb.StatusPaySuccess {
+		err = constant.OrderCallbackNotApplicable
+		log.Sugar.Warnf("[admin-order] resend-callback rejected admin_user_id=%d trade_id=%s status=%d err=%v", adminUserID, tradeID, order.Status, err)
+		return c.FailJson(ctx, err)
+	}
+	if strings.TrimSpace(order.NotifyUrl) == "" {
+		err = constant.OrderNotifyURLEmptyErr
+		log.Sugar.Warnf("[admin-order] resend-callback rejected admin_user_id=%d trade_id=%s err=%v", adminUserID, tradeID, err)
+		return c.FailJson(ctx, err)
+	}
 	ok, err := data.ReopenOrderCallback(tradeID)
 	if err != nil {
+		log.Sugar.Warnf("[admin-order] resend-callback reopen failed admin_user_id=%d trade_id=%s err=%v", adminUserID, tradeID, err)
 		return c.FailJson(ctx, err)
 	}
 	if !ok {
-		return c.FailJson(ctx, errors.New("order is not paid (callback not applicable)"))
+		err = constant.OrderResendCallbackErr
+		log.Sugar.Warnf("[admin-order] resend-callback rejected admin_user_id=%d trade_id=%s err=%v", adminUserID, tradeID, err)
+		return c.FailJson(ctx, err)
 	}
+	log.Sugar.Infof("[admin-order] resend-callback queued admin_user_id=%d trade_id=%s", adminUserID, tradeID)
 	return c.SucJson(ctx, nil)
 }
 
@@ -380,7 +389,7 @@ func (c *BaseAdminController) GetOrderWithSub(ctx echo.Context) error {
 		return c.FailJson(ctx, err)
 	}
 	if order.ID == 0 {
-		return c.FailJson(ctx, errors.New("order not found"))
+		return c.FailJson(ctx, constant.OrderNotExists)
 	}
 	subOrders, err := data.GetAllSubOrders(tradeID)
 	if err != nil {

src/controller/admin/rpc_controller.go

@@ -1,25 +1,28 @@
 package admin
 
 import (
-	"errors"
+	"net/url"
 	"strconv"
 	"strings"
 
 	"github.com/GMWalletApp/epusdt/model/data"
 	"github.com/GMWalletApp/epusdt/model/mdb"
 	"github.com/GMWalletApp/epusdt/task"
+	"github.com/GMWalletApp/epusdt/util/constant"
 	"github.com/labstack/echo/v4"
 )
 
 // CreateRpcNodeRequest is the payload for creating an RPC node.
 type CreateRpcNodeRequest struct {
 	Network string `json:"network" validate:"required" example:"tron"`
-	Url string `json:"url" validate:"required" example:"https://api.trongrid.io"`
+	Url     string `json:"url" validate:"required" example:"https://api.trongrid.io"`
 	// 连接类型 http=HTTP请求 ws=WebSocket长连接
-	Type string `json:"type" validate:"required|in:http,ws" enums:"http,ws" example:"http"`
+	Type    string `json:"type" validate:"required|in:http,ws" enums:"http,ws" example:"http"`
 	Weight  int    `json:"weight" example:"1"`
 	ApiKey  string `json:"api_key" example:""`
 	Enabled *bool  `json:"enabled" example:"true"`
+	// 用途 general=通用 manual_verify=补单专用 both=通用+补单
+	Purpose string `json:"purpose" enums:"general,manual_verify,both" example:"general"`
 }
 
 // UpdateRpcNodeRequest is the payload for updating an RPC node.
@@ -28,6 +31,7 @@ type UpdateRpcNodeRequest struct {
 	Weight  *int    `json:"weight" example:"1"`
 	ApiKey  *string `json:"api_key" example:"your-api-key"`
 	Enabled *bool   `json:"enabled" example:"true"`
+	Purpose *string `json:"purpose" enums:"general,manual_verify,both" example:"manual_verify"`
 }
 
 // ListRpcNodes returns rows optionally filtered by network.
@@ -64,7 +68,7 @@ func (c *BaseAdminController) ListRpcNodes(ctx echo.Context) error {
 func (c *BaseAdminController) CreateRpcNode(ctx echo.Context) error {
 	req := new(CreateRpcNodeRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	if err := c.ValidateStruct(ctx, req); err != nil {
 		return c.FailJson(ctx, err)
@@ -77,13 +81,23 @@ func (c *BaseAdminController) CreateRpcNode(ctx echo.Context) error {
 	if req.Enabled != nil {
 		enabled = *req.Enabled
 	}
+	purpose, err := rpcNodePurposeFromRequest(req.Purpose)
+	if err != nil {
+		return c.FailJson(ctx, err)
+	}
+	nodeURL := strings.TrimSpace(req.Url)
+	nodeType := strings.ToLower(strings.TrimSpace(req.Type))
+	if err := validateRpcNodeURLForType(nodeURL, nodeType); err != nil {
+		return c.FailJson(ctx, err)
+	}
 	row := &mdb.RpcNode{
 		Network:       strings.ToLower(strings.TrimSpace(req.Network)),
-		Url:           strings.TrimSpace(req.Url),
+		Url:           nodeURL,
-		Type:          strings.ToLower(strings.TrimSpace(req.Type)),
+		Type:          nodeType,
 		Weight:        weight,
 		ApiKey:        req.ApiKey,
 		Enabled:       enabled,
+		Purpose:       purpose,
 		Status:        mdb.RpcNodeStatusUnknown,
 		LastLatencyMs: -1,
 	}
@@ -93,7 +107,7 @@ func (c *BaseAdminController) CreateRpcNode(ctx echo.Context) error {
 	return c.SucJson(ctx, row)
 }
 
-// UpdateRpcNode patches url/weight/api_key/enabled.
+// UpdateRpcNode patches url/weight/api_key/enabled/purpose.
 // @Summary      Update RPC node
 // @Description  Patch RPC node fields
 // @Tags         Admin RPC Nodes
@@ -108,15 +122,26 @@ func (c *BaseAdminController) CreateRpcNode(ctx echo.Context) error {
 func (c *BaseAdminController) UpdateRpcNode(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	req := new(UpdateRpcNodeRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	fields := map[string]interface{}{}
 	if req.Url != nil {
-		fields["url"] = *req.Url
+		row, err := data.GetRpcNodeByID(id)
+		if err != nil {
+			return c.FailJson(ctx, err)
+		}
+		if row.ID == 0 {
+			return c.FailJson(ctx, constant.RpcNodeNotFoundErr)
+		}
+		nodeURL := strings.TrimSpace(*req.Url)
+		if err := validateRpcNodeURLForType(nodeURL, row.Type); err != nil {
+			return c.FailJson(ctx, err)
+		}
+		fields["url"] = nodeURL
 	}
 	if req.Weight != nil {
 		fields["weight"] = *req.Weight
@@ -127,6 +152,13 @@ func (c *BaseAdminController) UpdateRpcNode(ctx echo.Context) error {
 	if req.Enabled != nil {
 		fields["enabled"] = *req.Enabled
 	}
+	if req.Purpose != nil {
+		purpose, err := rpcNodePurposeFromRequest(*req.Purpose)
+		if err != nil {
+			return c.FailJson(ctx, err)
+		}
+		fields["purpose"] = purpose
+	}
 	if err := data.UpdateRpcNodeFields(id, fields); err != nil {
 		return c.FailJson(ctx, err)
 	}
@@ -146,7 +178,7 @@ func (c *BaseAdminController) UpdateRpcNode(ctx echo.Context) error {
 func (c *BaseAdminController) DeleteRpcNode(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	if err := data.DeleteRpcNodeByID(id); err != nil {
 		return c.FailJson(ctx, err)
@@ -170,14 +202,14 @@ func (c *BaseAdminController) DeleteRpcNode(ctx echo.Context) error {
 func (c *BaseAdminController) HealthCheckRpcNode(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	row, err := data.GetRpcNodeByID(id)
 	if err != nil {
 		return c.FailJson(ctx, err)
 	}
 	if row.ID == 0 {
-		return c.FailJson(ctx, errors.New("node not found"))
+		return c.FailJson(ctx, constant.RpcNodeNotFoundErr)
 	}
 	status, latency := task.ProbeNode(row.Url)
 	if err := data.UpdateRpcNodeHealth(id, status, latency); err != nil {
@@ -188,3 +220,40 @@ func (c *BaseAdminController) HealthCheckRpcNode(ctx echo.Context) error {
 		"last_latency_ms": latency,
 	})
 }
+
+func rpcNodePurposeFromRequest(raw string) (string, error) {
+	purpose := strings.ToLower(strings.TrimSpace(raw))
+	if purpose == "" {
+		return mdb.RpcNodePurposeGeneral, nil
+	}
+	switch purpose {
+	case mdb.RpcNodePurposeGeneral, mdb.RpcNodePurposeManualVerify, mdb.RpcNodePurposeBoth:
+		return purpose, nil
+	default:
+		return "", constant.RpcNodePurposeErr
+	}
+}
+
+func validateRpcNodeURLForType(rawURL string, nodeType string) error {
+	rawURL = strings.TrimSpace(rawURL)
+	nodeType = strings.ToLower(strings.TrimSpace(nodeType))
+	parsed, err := url.Parse(rawURL)
+	if err != nil || parsed.Scheme == "" || parsed.Host == "" {
+		return constant.RpcNodeURLErr
+	}
+	scheme := strings.ToLower(parsed.Scheme)
+	switch nodeType {
+	case mdb.RpcNodeTypeHttp:
+		if scheme == "http" || scheme == "https" {
+			return nil
+		}
+		return constant.RpcNodeHTTPURLErr
+	case mdb.RpcNodeTypeWs:
+		if scheme == "ws" || scheme == "wss" {
+			return nil
+		}
+		return constant.RpcNodeWebSocketURLErr
+	default:
+		return constant.RpcNodeTypeErr
+	}
+}

src/controller/admin/settings_controller.go

@@ -1,12 +1,17 @@
 package admin
 
 import (
+	"encoding/json"
+	"fmt"
+	"strconv"
 	"strings"
 
 	"github.com/GMWalletApp/epusdt/model/dao"
 	"github.com/GMWalletApp/epusdt/model/data"
 	"github.com/GMWalletApp/epusdt/model/mdb"
 	"github.com/GMWalletApp/epusdt/telegram"
+	"github.com/GMWalletApp/epusdt/util/constant"
+	"github.com/GMWalletApp/epusdt/util/security"
 	"github.com/labstack/echo/v4"
 )
 
@@ -14,8 +19,8 @@ import (
 // Supported groups and keys:
 //
 //   - group=rate:
-//     rate.forced_usdt_rate  (float)  — override USDT exchange rate (0 = use api)
+//     rate.forced_rate_list  (json)   — override rate map, e.g. {"cny":{"usdt":0.14635}}; base/coin keys are normalized to lowercase
-//     rate.api_url           (string) — external rate API URL
+//     rate.api_url           (string) — external rate API URL used when no positive forced rate exists
 //     rate.adjust_percent    (float)  — rate adjustment percentage
 //     rate.okx_c2c_enabled   (bool)   — use OKX C2C rate feed
 //
@@ -24,20 +29,36 @@ import (
 //     epay.default_currency  (string) — fiat currency for EPAY orders, e.g. "cny" (default)
 //     epay.default_network   (string) — blockchain network for EPAY orders, e.g. "tron" (default)
 //
+//   - group=okpay:
+//     okpay.enabled          (bool)   — enable OkPay as a switch-network payment option
+//     okpay.shop_id          (string) — OkPay merchant/shop identifier
+//     okpay.shop_token       (string) — OkPay signing token
+//     okpay.api_url          (string) — OkPay API base URL
+//     okpay.callback_url     (string) — server callback URL used for OkPay notify
+//     okpay.return_url       (string) — optional default browser return URL after payment
+//     okpay.timeout_seconds  (int)    — outbound OkPay API timeout in seconds
+//     okpay.allow_tokens     (string) — comma-separated allowed tokens, e.g. "USDT,TRX"
+//
 //   - group=brand:
-//     brand.site_name        (string) — site display name
+//     brand.checkout_name    (string) — cashier display name (preferred)
 //     brand.logo_url         (string) — logo image URL
-//     brand.page_title       (string) — payment page title
+//     brand.site_title       (string) — payment page title / website title (preferred)
-//     brand.pay_success_text (string) — text shown on payment success
+//     brand.success_copy     (string) — text shown on payment success (preferred)
 //     brand.support_url      (string) — support / help URL
+//     brand.background_color (string) — checkout background color
+//     brand.background_image_url (string) — checkout background image URL
+//     brand.site_name        (string) — legacy cashier/site display name
+//     brand.page_title       (string) — legacy payment page title
+//     brand.pay_success_text (string) — legacy success text
 //
 //   - group=system:
 //     system.order_expiration_time (int) — order expiry in minutes
+//     system.amount_precision      (int) — payment amount precision, 2-6 decimals (default 2)
 type SettingUpsertItem struct {
-	Group string `json:"group" enums:"brand,rate,system,epay" example:"epay"`
+	Group string      `json:"group" enums:"brand,rate,system,epay,okpay" example:"epay"`
-	Key   string `json:"key" example:"epay.default_network"`
+	Key   string      `json:"key" example:"epay.default_network"`
-	Value string `json:"value" example:"tron"`
+	Value interface{} `json:"value"`
-	Type  string `json:"type" enums:"string,int,bool,json" example:"string"`
+	Type  string      `json:"type" enums:"string,int,bool,json" example:"string"`
 }
 
 // SettingsUpsertRequest is the payload for batch upserting settings.
@@ -48,12 +69,12 @@ type SettingsUpsertRequest struct {
 // ListSettings returns all rows, optionally filtered by group.
 // @Summary      List settings
 // @Description  Returns all settings, optionally filtered by group.
-// @Description  Available groups: brand, rate, system, epay.
+// @Description  Available groups: brand, rate, system, epay, okpay.
 // @Description  See SettingUpsertItem for the full list of supported keys per group.
 // @Tags         Admin Settings
 // @Security     AdminJWT
 // @Produce      json
-// @Param        group query string false "Group filter (brand|rate|system|epay)"
+// @Param        group query string false "Group filter (brand|rate|system|epay|okpay)"
 // @Success      200 {object} response.ApiResponse{data=[]mdb.Setting}
 // @Failure      400 {object} response.ApiResponse
 // @Router       /admin/api/v1/settings [get]
@@ -70,12 +91,13 @@ func (c *BaseAdminController) ListSettings(ctx echo.Context) error {
 // independently so a malformed row in the middle doesn't drop earlier
 // ones. Errors are returned per-key so the UI can surface them.
 // @Summary      Upsert settings
-// @Description  Batch insert/update settings. Returns per-key status.
+// @Description  Batch insert/update settings. Returns per-key status; failed items include error_code for frontend i18n.
-// @Description  Supported groups: brand, rate, system, epay.
+// @Description  Supported groups: brand, rate, system, epay, okpay.
 // @Description  epay group keys: epay.default_token (e.g. "usdt"), epay.default_currency (e.g. "cny"), epay.default_network (e.g. "tron").
-// @Description  rate group keys: rate.forced_usdt_rate, rate.api_url, rate.adjust_percent, rate.okx_c2c_enabled.
+// @Description  okpay group keys: okpay.enabled, okpay.shop_id, okpay.shop_token, okpay.api_url, okpay.callback_url, okpay.return_url, okpay.timeout_seconds, okpay.allow_tokens.
-// @Description  brand group keys: brand.site_name, brand.logo_url, brand.page_title, brand.pay_success_text, brand.support_url.
+// @Description  rate group keys: rate.forced_rate_list (JSON map, e.g. {"cny":{"usdt":0.14635}}; base/coin keys are normalized to lowercase), rate.api_url, rate.adjust_percent, rate.okx_c2c_enabled.
-// @Description  system group keys: system.order_expiration_time.
+// @Description  brand group keys: brand.checkout_name, brand.logo_url, brand.site_title, brand.success_copy, brand.support_url, brand.background_color, brand.background_image_url. Legacy aliases brand.site_name, brand.page_title and brand.pay_success_text are also supported.
+// @Description  system group keys: system.order_expiration_time, system.amount_precision (int, 2-6, default 2).
 // @Tags         Admin Settings
 // @Security     AdminJWT
 // @Accept       json
@@ -87,25 +109,48 @@ func (c *BaseAdminController) ListSettings(ctx echo.Context) error {
 func (c *BaseAdminController) UpsertSettings(ctx echo.Context) error {
 	req := new(SettingsUpsertRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	if err := c.ValidateStruct(ctx, req); err != nil {
 		return c.FailJson(ctx, err)
 	}
 	type result struct {
-		Key   string `json:"key"`
+		Key       string `json:"key"`
-		OK    bool   `json:"ok"`
+		OK        bool   `json:"ok"`
-		Error string `json:"error,omitempty"`
+		ErrorCode int    `json:"error_code,omitempty"`
+		Error     string `json:"error,omitempty"`
 	}
 	out := make([]result, 0, len(req.Items))
+	errorResult := func(key string, err error) result {
+		code, msg := constant.ResolveErrno(err)
+		return result{Key: key, OK: false, ErrorCode: code, Error: msg}
+	}
 	for _, item := range req.Items {
 		key := strings.TrimSpace(item.Key)
 		if key == "" {
-			out = append(out, result{Key: item.Key, OK: false, Error: "key required"})
+			out = append(out, errorResult(item.Key, constant.SettingItemErr))
 			continue
 		}
-		if err := data.SetSetting(item.Group, key, item.Value, item.Type); err != nil {
+		value, err := normalizeSettingValue(item.Value)
-			out = append(out, result{Key: key, OK: false, Error: err.Error()})
+		if err != nil {
+			out = append(out, errorResult(key, constant.SettingItemErr))
+			continue
+		}
+		value, err = normalizeAndValidateSettingItem(item.Group, key, value)
+		if err != nil {
+			out = append(out, errorResult(key, constant.SettingItemErr))
+			continue
+		}
+		if key == mdb.SettingKeyAmountPrecision {
+			item.Group = mdb.SettingGroupSystem
+			item.Type = mdb.SettingTypeInt
+		}
+		if key == mdb.SettingKeyRateForcedRateList {
+			item.Group = mdb.SettingGroupRate
+			item.Type = mdb.SettingTypeJSON
+		}
+		if err := data.SetSetting(item.Group, key, value, item.Type); err != nil {
+			out = append(out, errorResult(key, err))
 			continue
 		}
 		out = append(out, result{Key: key, OK: true})
@@ -132,6 +177,100 @@ func (c *BaseAdminController) UpsertSettings(ctx echo.Context) error {
 	return c.SucJson(ctx, out)
 }
 
+func normalizeSettingValue(value interface{}) (string, error) {
+	switch v := value.(type) {
+	case nil:
+		return "", nil
+	case string:
+		return v, nil
+	default:
+		b, err := json.Marshal(v)
+		if err != nil {
+			return "", fmt.Errorf("value must be JSON serializable")
+		}
+		return string(b), nil
+	}
+}
+
+func normalizeAndValidateSettingItem(group, key, value string) (string, error) {
+	switch key {
+	case mdb.SettingKeyAmountPrecision:
+		if strings.ToLower(strings.TrimSpace(group)) != mdb.SettingGroupSystem {
+			return value, fmt.Errorf("%s must use group %s", key, mdb.SettingGroupSystem)
+		}
+		precision, err := strconv.Atoi(strings.TrimSpace(value))
+		if err != nil {
+			return value, fmt.Errorf("%s must be an integer", key)
+		}
+		if precision < data.MinAmountPrecision || precision > data.MaxAmountPrecision {
+			return value, fmt.Errorf("%s must be between %d and %d", key, data.MinAmountPrecision, data.MaxAmountPrecision)
+		}
+	case mdb.SettingKeyRateForcedRateList:
+		normalized, err := normalizeForcedRateListSetting(group, key, value)
+		if err != nil {
+			return value, err
+		}
+		return normalized, nil
+	case mdb.SettingKeyRateApiUrl:
+		if strings.ToLower(strings.TrimSpace(group)) != mdb.SettingGroupRate {
+			return value, fmt.Errorf("%s must use group %s", key, mdb.SettingGroupRate)
+		}
+		if err := security.ValidatePublicHTTPURL(value); err != nil {
+			return value, fmt.Errorf("%s invalid: %w", key, err)
+		}
+	}
+	return value, nil
+}
+
+func normalizeForcedRateListSetting(group, key, value string) (string, error) {
+	if strings.ToLower(strings.TrimSpace(group)) != mdb.SettingGroupRate {
+		return value, fmt.Errorf("%s must use group %s", key, mdb.SettingGroupRate)
+	}
+	if strings.TrimSpace(value) == "" {
+		return "", nil
+	}
+
+	var rates map[string]map[string]float64
+	if err := json.Unmarshal([]byte(value), &rates); err != nil {
+		return value, fmt.Errorf("%s must be valid JSON object", key)
+	}
+
+	normalized := make(map[string]map[string]float64, len(rates))
+	for base, coins := range rates {
+		normalizedBase := strings.ToLower(strings.TrimSpace(base))
+		if normalizedBase == "" {
+			return value, fmt.Errorf("%s base currency must not be empty", key)
+		}
+		if coins == nil {
+			return value, fmt.Errorf("%s.%s must be an object", key, base)
+		}
+		normalizedCoins, ok := normalized[normalizedBase]
+		if !ok {
+			normalizedCoins = make(map[string]float64, len(coins))
+			normalized[normalizedBase] = normalizedCoins
+		}
+		for coin, rate := range coins {
+			normalizedCoin := strings.ToLower(strings.TrimSpace(coin))
+			if normalizedCoin == "" {
+				return value, fmt.Errorf("%s coin must not be empty", key)
+			}
+			if rate < 0 {
+				return value, fmt.Errorf("%s.%s.%s must be >= 0", key, base, coin)
+			}
+			if _, exists := normalizedCoins[normalizedCoin]; exists {
+				return value, fmt.Errorf("%s.%s.%s is duplicated after normalization", key, normalizedBase, normalizedCoin)
+			}
+			normalizedCoins[normalizedCoin] = rate
+		}
+	}
+
+	normalizedValue, err := json.Marshal(normalized)
+	if err != nil {
+		return value, fmt.Errorf("%s must be JSON serializable", key)
+	}
+	return string(normalizedValue), nil
+}
+
 // DeleteSetting removes one row. The next read of that key will fall
 // back to the hardcoded default (see settings_data.GetSetting*).
 // @Summary      Delete setting
@@ -153,7 +292,3 @@ func (c *BaseAdminController) DeleteSetting(ctx echo.Context) error {
 	}
 	return c.SucJson(ctx, nil)
 }
-
-// Public helper for the rate/usdt overrides — used by config package to
-// read settings-backed values without importing the controller package.
-var _ = mdb.SettingKeyRateForcedUsdt // ensure key constants remain referenced

src/controller/admin/wallet_controller.go

@@ -1,13 +1,13 @@
 package admin
 
 import (
-	"errors"
 	"strconv"
 	"strings"
 
 	"github.com/GMWalletApp/epusdt/model/dao"
 	"github.com/GMWalletApp/epusdt/model/data"
 	"github.com/GMWalletApp/epusdt/model/mdb"
+	"github.com/GMWalletApp/epusdt/util/constant"
 	"github.com/labstack/echo/v4"
 )
 
@@ -105,7 +105,7 @@ func (c *BaseAdminController) AdminListWallets(ctx echo.Context) error {
 func (c *BaseAdminController) AdminAddWallet(ctx echo.Context) error {
 	req := new(AdminAddWalletRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	if err := c.ValidateStruct(ctx, req); err != nil {
 		return c.FailJson(ctx, err)
@@ -140,14 +140,14 @@ func (c *BaseAdminController) AdminAddWallet(ctx echo.Context) error {
 func (c *BaseAdminController) AdminGetWallet(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	wallet, err := data.GetWalletAddressById(id)
 	if err != nil {
 		return c.FailJson(ctx, err)
 	}
 	if wallet.ID == 0 {
-		return c.FailJson(ctx, errors.New("wallet not found"))
+		return c.FailJson(ctx, constant.WalletNotFoundErr)
 	}
 	counts, _ := data.CountOrdersByAddress()
 	return c.SucJson(ctx, WalletListItem{WalletAddress: *wallet, OrderCount: counts[wallet.Address]})
@@ -168,11 +168,11 @@ func (c *BaseAdminController) AdminGetWallet(ctx echo.Context) error {
 func (c *BaseAdminController) AdminUpdateWallet(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	req := new(AdminUpdateWalletRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	fields := map[string]interface{}{}
 	if req.Remark != nil {
@@ -202,11 +202,11 @@ func (c *BaseAdminController) AdminUpdateWallet(ctx echo.Context) error {
 func (c *BaseAdminController) AdminChangeWalletStatus(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	req := new(AdminChangeWalletStatusRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	if err := c.ValidateStruct(ctx, req); err != nil {
 		return c.FailJson(ctx, err)
@@ -230,7 +230,7 @@ func (c *BaseAdminController) AdminChangeWalletStatus(ctx echo.Context) error {
 func (c *BaseAdminController) AdminDeleteWallet(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	if err := data.DeleteWalletAddressById(id); err != nil {
 		return c.FailJson(ctx, err)
@@ -242,7 +242,7 @@ func (c *BaseAdminController) AdminDeleteWallet(ctx echo.Context) error {
 // them all as observation wallets. Per-row failures are collected and
 // returned so the UI can surface which addresses already existed.
 // @Summary      Batch import wallets
-// @Description  Import multiple wallet addresses at once. Per-row status is returned.
+// @Description  Import multiple wallet addresses at once. Per-row status is returned; failed rows include error_code for frontend i18n.
 // @Tags         Admin Wallets
 // @Security     AdminJWT
 // @Accept       json
@@ -254,21 +254,23 @@ func (c *BaseAdminController) AdminDeleteWallet(ctx echo.Context) error {
 func (c *BaseAdminController) AdminBatchImportWallets(ctx echo.Context) error {
 	req := new(AdminBatchImportRequest)
 	if err := ctx.Bind(req); err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
 	}
 	if err := c.ValidateStruct(ctx, req); err != nil {
 		return c.FailJson(ctx, err)
 	}
 	type result struct {
-		Address string `json:"address"`
+		Address   string `json:"address"`
-		OK      bool   `json:"ok"`
+		OK        bool   `json:"ok"`
-		Error   string `json:"error,omitempty"`
+		ErrorCode int    `json:"error_code,omitempty"`
+		Error     string `json:"error,omitempty"`
 	}
 	out := make([]result, 0, len(req.Addresses))
 	for _, addr := range req.Addresses {
 		row, err := data.AddWalletAddressWithNetwork(req.Network, addr)
 		if err != nil {
-			out = append(out, result{Address: addr, OK: false, Error: err.Error()})
+			code, msg := constant.ResolveErrno(err)
+			out = append(out, result{Address: addr, OK: false, ErrorCode: code, Error: msg})
 			continue
 		}
 		_ = dao.Mdb.Model(&mdb.WalletAddress{}).Where("id = ?", row.ID).

src/controller/base.go

@@ -1,7 +1,7 @@
 package controller
 
 import (
-	"errors"
+	"github.com/GMWalletApp/epusdt/util/constant"
 	"github.com/GMWalletApp/epusdt/util/http"
 	"github.com/gookit/validate"
 	"github.com/gookit/validate/locales/zhcn"
@@ -46,6 +46,6 @@ func (c *BaseController) ValidateStruct(ctx echo.Context, i interface{}, scene .
 	if v.Validate() {
 		return nil
 	} else {
-		return errors.New(v.Errors.One())
+		return constant.ParamsMarshalErr
 	}
 }

src/controller/comm/okpay_controller.go

@@ -0,0 +1,154 @@
+package comm
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"math"
+	"net/http"
+	"net/url"
+	"strconv"
+	"strings"
+
+	"github.com/GMWalletApp/epusdt/model/service"
+	"github.com/GMWalletApp/epusdt/util/log"
+	"github.com/labstack/echo/v4"
+)
+
+// OkPayNotify receives the server-to-server OkPay payment callback.
+// The handler accepts JSON or form-urlencoded payloads and returns plain-text
+// acknowledgements expected by the upstream provider.
+// @Summary      OkPay notify callback
+// @Description  Receives OkPay deposit callbacks for hosted checkout child orders.
+// @Description  The callback is verified against the configured OkPay shop token and, on success, marks the matching child order as paid.
+// @Tags         Payment
+// @Accept       json
+// @Accept       x-www-form-urlencoded
+// @Produce      plain
+// @Success      200 {string} string "success"
+// @Failure      400 {string} string "fail"
+// @Router       /payments/okpay/v1/notify [post]
+func (c *BaseCommController) OkPayNotify(ctx echo.Context) error {
+	req := ctx.Request()
+	rawBody, err := io.ReadAll(req.Body)
+	if err != nil {
+		log.Sugar.Warnf("[okpay] read notify body failed err=%v", err)
+		return ctx.String(http.StatusBadRequest, "fail")
+	}
+	req.Body = io.NopCloser(bytes.NewReader(rawBody))
+
+	form := make(map[string]string)
+	copyForm := func(values url.Values) {
+		for key, items := range values {
+			if len(items) == 0 {
+				continue
+			}
+			form[key] = items[0]
+		}
+	}
+
+	copyForm(req.URL.Query())
+
+	contentType := strings.ToLower(req.Header.Get(echo.HeaderContentType))
+
+	if strings.Contains(contentType, echo.MIMEApplicationJSON) && len(rawBody) > 0 {
+		if jsonForm, jsonErr := flattenOkPayJSONBody(rawBody); jsonErr == nil {
+			for key, value := range jsonForm {
+				form[key] = value
+			}
+		}
+	}
+
+	// Match the PHP example's $_POST semantics: let Echo/net/http parse both
+	// application/x-www-form-urlencoded and multipart/form-data.
+	if len(form) == 0 {
+		req.Body = io.NopCloser(bytes.NewReader(rawBody))
+		if parsedForm, formErr := ctx.FormParams(); formErr == nil {
+			copyForm(parsedForm)
+		}
+	}
+
+	// Final fallback for raw query-string style bodies.
+	if len(form) == 0 && len(rawBody) > 0 && looksLikeQueryPayload(string(rawBody)) {
+		if parsed, parseErr := url.ParseQuery(string(rawBody)); parseErr == nil && len(parsed) > 0 {
+			copyForm(parsed)
+		}
+	}
+
+	rawFormData := string(rawBody)
+	if rawFormData == "" {
+		rawFormData = req.URL.RawQuery
+	}
+
+	if len(form) == 0 {
+		log.Sugar.Warnf("[okpay] empty notify payload method=%s content_type=%s remote=%s raw_query=%q raw_body=%q", req.Method, req.Header.Get(echo.HeaderContentType), ctx.RealIP(), req.URL.RawQuery, rawFormData)
+		return ctx.String(http.StatusBadRequest, "fail")
+	}
+
+	if err = service.HandleOkPayNotify(form, rawFormData); err != nil {
+		log.Sugar.Warnf("[okpay] notify handle failed method=%s content_type=%s remote=%s form=%v raw_query=%q raw_body=%q err=%v", req.Method, req.Header.Get(echo.HeaderContentType), ctx.RealIP(), form, req.URL.RawQuery, rawFormData, err)
+		return ctx.String(http.StatusBadRequest, "fail")
+	}
+	return ctx.String(http.StatusOK, "success")
+}
+
+func flattenOkPayJSONBody(rawBody []byte) (map[string]string, error) {
+	decoder := json.NewDecoder(bytes.NewReader(rawBody))
+	decoder.UseNumber()
+
+	var payload map[string]interface{}
+	if err := decoder.Decode(&payload); err != nil {
+		return nil, err
+	}
+
+	flat := make(map[string]string)
+	for key, value := range payload {
+		if key == "data" {
+			dataMap, ok := value.(map[string]interface{})
+			if !ok {
+				continue
+			}
+			for dataKey, dataValue := range dataMap {
+				flat["data["+dataKey+"]"] = stringifyOkPayJSONValue(dataValue)
+			}
+			continue
+		}
+		flat[key] = stringifyOkPayJSONValue(value)
+	}
+	return flat, nil
+}
+
+func stringifyOkPayJSONValue(value interface{}) string {
+	switch v := value.(type) {
+	case nil:
+		return ""
+	case string:
+		return strings.TrimSpace(v)
+	case json.Number:
+		return v.String()
+	case float64:
+		if v == math.Trunc(v) {
+			return strconv.FormatInt(int64(v), 10)
+		}
+		return strconv.FormatFloat(v, 'f', -1, 64)
+	case bool:
+		if v {
+			return "true"
+		}
+		return "false"
+	default:
+		return strings.TrimSpace(fmt.Sprint(v))
+	}
+}
+
+func looksLikeQueryPayload(raw string) bool {
+	trimmed := strings.TrimSpace(raw)
+	if trimmed == "" {
+		return false
+	}
+	if strings.HasPrefix(trimmed, "{") || strings.HasPrefix(trimmed, "[") {
+		return false
+	}
+	return strings.Contains(trimmed, "=")
+}

src/controller/comm/order_controller.go

@@ -41,7 +41,7 @@ func apiKeyFromContext(ctx echo.Context) *mdb.ApiKey {
 // @Param        name formData string false "Order name"
 // @Param        payment_type formData string false "Payment type"
 // @Success      200 {object} response.ApiResponse{data=response.CreateTransactionResponse}
-// @Failure      400 {object} response.ApiResponse
+// @Failure      400 {object} response.ApiResponse "Stable errno in status_code: 10009 invalid params, 10041 invalid notify_url, 10004 invalid amount, 10014 chain disabled, 10003 no wallet, 10005 no amount channel"
 // @Router       /payments/gmpay/v1/order/create-transaction [post]
 func (c *BaseCommController) CreateTransaction(ctx echo.Context) (err error) {
 	req := new(request.CreateTransactionRequest)
@@ -60,13 +60,15 @@ func (c *BaseCommController) CreateTransaction(ctx echo.Context) (err error) {
 
 // SwitchNetwork 切换支付网络，创建或返回子订单
 // @Summary      Switch payment network
-// @Description  Switch to a different payment network, creating or returning a sub-order
+// @Description  Switch to a different payment target, creating or returning a sub-order.
+// @Description  Normal values such as tron/solana/ethereum create on-chain child orders.
+// @Description  The special value okpay creates or reuses an OkPay-hosted child order and returns its payment_url.
 // @Tags         Payment
 // @Accept       json
 // @Produce      json
 // @Param        request body request.SwitchNetworkRequest true "Switch network payload"
-// @Success      200 {object} response.ApiResponse
+// @Success      200 {object} response.ApiResponse{data=response.CheckoutCounterResponse}
-// @Failure      400 {object} response.ApiResponse
+// @Failure      400 {object} response.ApiResponse "Stable errno in status_code: 10008 order not found, 10012 cannot switch sub-order, 10013 not waiting payment, 10017/10018/10019 provider errors, 10042 provider order creation failed"
 // @Router       /pay/switch-network [post]
 func (c *BaseCommController) SwitchNetwork(ctx echo.Context) (err error) {
 	req := new(request.SwitchNetworkRequest)
@@ -83,7 +85,7 @@ func (c *BaseCommController) SwitchNetwork(ctx echo.Context) (err error) {
 
 	jsonBytes, err := json.MarshalIndent(resp, "", "  ")
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return c.FailJson(ctx, constant.SystemErr)
 	}
 
 	log.Sugar.Debugf("switch network response: \n%s", string(jsonBytes))
@@ -119,7 +121,7 @@ func (c *BaseCommController) SwitchNetwork(ctx echo.Context) (err error) {
 // @Param        sign formData string true "MD5 signature"
 // @Param        sign_type formData string false "Signature type (MD5)"
 // @Success      302 "Redirect to checkout counter"
-// @Failure      400 {object} response.ApiResponse
+// @Failure      400 {object} response.ApiResponse "Stable errno in status_code: 10009 invalid params, 10041 invalid notify_url, 10004 invalid amount, 10014 chain disabled, 10003 no wallet, 10005 no amount channel"
 // @Router       /payments/epay/v1/order/create-transaction/submit.php [post]
 // @Router       /payments/epay/v1/order/create-transaction/submit.php [get]
 func (c *BaseCommController) CreateTransactionAndRedirect(ctx echo.Context) (err error) {

src/controller/comm/pay_controller.go

@@ -1,57 +1,42 @@
 package comm
 
 import (
-	"html/template"
+	"strings"
-	"net/http"
-	"path/filepath"
 
-	"github.com/GMWalletApp/epusdt/config"
+	"github.com/GMWalletApp/epusdt/model/request"
 	"github.com/GMWalletApp/epusdt/model/response"
 	"github.com/GMWalletApp/epusdt/model/service"
+	"github.com/GMWalletApp/epusdt/util/constant"
 	"github.com/labstack/echo/v4"
 )
 
 // CheckoutCounter 收银台
 // @Summary      Checkout counter page
-// @Description  Render the payment checkout counter HTML page for a given trade
+// @Description  Return checkout initialization data when the order exists. This endpoint only confirms order existence and returns base order data; call /pay/check-status/{trade_id} for the current order status (1=waiting payment, 2=paid, 3=expired).
 // @Tags         Payment
-// @Produce      html
+// @Produce      json
 // @Param        trade_id path string true "Trade ID"
-// @Success      200 {string} string "HTML page"
+// @Success      200 {object} response.ApiResponse{data=response.CheckoutCounterResponse}
-// @Router       /pay/checkout-counter/{trade_id} [get]
+// @Failure      400 {object} response.ApiResponse "Order not found (status_code=10008) or other request error"
+// @Router       /pay/checkout-counter-resp/{trade_id} [get]
 func (c *BaseCommController) CheckoutCounter(ctx echo.Context) (err error) {
 	tradeId := ctx.Param("trade_id")
 	resp, err := service.GetCheckoutCounterByTradeId(tradeId)
 	if err != nil {
-		if err == service.ErrOrder {
+		return c.FailJson(ctx, err)
-			// Unknown trade id: render the page with empty payload
-			// (client side shows a friendly "order not found" screen).
-			tmpl, tmplErr := template.ParseFiles(filepath.Join(config.StaticFilePath, "index.html"))
-			if tmplErr != nil {
-				return ctx.String(http.StatusInternalServerError, tmplErr.Error())
-			}
-			ctx.Response().Status = http.StatusNotFound
-			emptyResp := response.CheckoutCounterResponse{}
-			return tmpl.Execute(ctx.Response(), emptyResp)
-		}
-		return ctx.String(http.StatusInternalServerError, err.Error())
-	}
-	tmpl, err := template.ParseFiles(filepath.Join(config.StaticFilePath, "index.html"))
-	if err != nil {
-		return ctx.String(http.StatusInternalServerError, err.Error())
 	}
 
-	return tmpl.Execute(ctx.Response(), resp)
+	return c.SucJson(ctx, resp)
 }
 
 // CheckStatus 支付状态检测
 // @Summary      Check payment status
-// @Description  Check the payment status of an order by trade ID
+// @Description  Return the current order status by trade ID. Status: 1=waiting payment, 2=paid, 3=expired.
 // @Tags         Payment
 // @Produce      json
 // @Param        trade_id path string true "Trade ID"
 // @Success      200 {object} response.ApiResponse{data=response.CheckStatusResponse}
-// @Failure      400 {object} response.ApiResponse
+// @Failure      400 {object} response.ApiResponse "Order not found (status_code=10008) or other request error"
 // @Router       /pay/check-status/{trade_id} [get]
 func (c *BaseCommController) CheckStatus(ctx echo.Context) (err error) {
 	tradeId := ctx.Param("trade_id")
@@ -65,3 +50,32 @@ func (c *BaseCommController) CheckStatus(ctx echo.Context) (err error) {
 	}
 	return c.SucJson(ctx, resp)
 }
+
+// SubmitTxHash 手动提交交易 hash 补单
+// @Summary      Submit transaction hash
+// @Description  Submit an on-chain transaction hash from the cashier. The hash is verified against the order and, when valid, the same manual payment processing path used by admin mark-paid is executed. OkPay/provider orders are not supported.
+// @Tags         Payment
+// @Accept       json
+// @Produce      json
+// @Param        trade_id path string true "Trade ID"
+// @Param        request body request.ManualPaymentRequest true "Transaction hash payload"
+// @Success      200 {object} response.ApiResponse{data=response.ManualPaymentResponse}
+// @Failure      400 {object} response.ApiResponse "Stable errno in status_code: 10008 order not found, 10009 invalid params, 10013 not waiting payment, 10038 verification failed, 10039 unsupported provider, 10007 hash already processed"
+// @Router       /pay/submit-tx-hash/{trade_id} [post]
+func (c *BaseCommController) SubmitTxHash(ctx echo.Context) (err error) {
+	tradeId := ctx.Param("trade_id")
+	req := new(request.ManualPaymentRequest)
+	if err = ctx.Bind(req); err != nil {
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
+	}
+	req.BlockTransactionId = strings.TrimSpace(req.BlockTransactionId)
+	if err = c.ValidateStruct(ctx, req); err != nil {
+		return c.FailJson(ctx, err)
+	}
+
+	resp, err := service.SubmitCashierManualPayment(tradeId, req.BlockTransactionId)
+	if err != nil {
+		return c.FailJson(ctx, err)
+	}
+	return c.SucJson(ctx, resp)
+}

src/controller/comm/supported_asset_controller.go

@@ -5,38 +5,25 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/GMWalletApp/epusdt/config"
+	"github.com/GMWalletApp/epusdt/middleware"
 	"github.com/GMWalletApp/epusdt/model/data"
+	"github.com/GMWalletApp/epusdt/model/mdb"
 	"github.com/GMWalletApp/epusdt/model/response"
 	"github.com/GMWalletApp/epusdt/util/constant"
 	"github.com/labstack/echo/v4"
 )
 
-// GetSupportedAssets 对外公开可用链与 token 列表。数据源是管理后台
+func buildSupportedAssets() ([]response.NetworkTokenSupport, error) {
-// 的 chains + chain_tokens + wallet_address 三张表的实时查询，admin
-// 启用/禁用链或代币后，这个接口在下次调用时就会反映新状态（无缓存）。
-// 仅返回：链 enabled=true、代币 enabled=true、且该链上至少有一个可用
-// 钱包地址的组合。
-// @Summary      List supported (network, tokens) groupings
-// @Description  Public endpoint, Auth required in /admin/api/v1/supported-assets
-// @Tags         Supported Assets
-// @Produce      json
-// @Success      200 {object} response.ApiResponse{data=response.SupportedAssetsResponse}
-// @Failure      400 {object} response.ApiResponse
-// @Router       /payments/gmpay/v1/supported-assets [get]
-// @Router       /admin/api/v1/supported-assets [get]
-func (c *BaseCommController) GetSupportedAssets(ctx echo.Context) error {
 	chains, err := data.ListEnabledChains()
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return nil, err
 	}
 	wallets, err := data.GetAvailableWalletAddress()
 	if err != nil {
-		return c.FailJson(ctx, err)
+		return nil, err
 	}
 
-	// A chain only qualifies if it has at least one wallet available —
-	// without a recipient address, payments on that chain can't be
-	// processed even if the chain + token config says "enabled".
 	networkHasWallet := make(map[string]struct{})
 	for _, w := range wallets {
 		networkHasWallet[strings.ToLower(w.Network)] = struct{}{}
@@ -50,7 +37,7 @@ func (c *BaseCommController) GetSupportedAssets(ctx echo.Context) error {
 		}
 		tokens, err := data.ListEnabledChainTokensByNetwork(network)
 		if err != nil {
-			return c.FailJson(ctx, err)
+			return nil, err
 		}
 		if len(tokens) == 0 {
 			continue
@@ -67,24 +54,72 @@ func (c *BaseCommController) GetSupportedAssets(ctx echo.Context) error {
 			continue
 		}
 		sort.Strings(symbols)
+		displayName := strings.TrimSpace(ch.DisplayName)
+		if displayName == "" {
+			displayName = network
+		}
 		supports = append(supports, response.NetworkTokenSupport{
-			Network: network,
+			Network:     network,
-			Tokens:  symbols,
+			DisplayName: displayName,
+			Tokens:      symbols,
 		})
 	}
 
-	return c.SucJson(ctx, response.SupportedAssetsResponse{Supports: supports})
+	return supports, nil
 }
 
-// ListSupportedAssetRecords 查询支持项明细（无需鉴权）。
+// GetPublicConfig returns payment/site config consumed by cashier/frontends.
-// @Summary      List supported asset records
+// The public route returns brand/site display config plus non-sensitive
-// @Description  Public endpoint. Returns enabled chain_tokens, optionally filtered by network.
+// epay/okpay knobs, while the authenticated admin route also includes OkPay
-// @Tags         Supported Assets
+// credentials and internal URLs.
+// @Summary      Get public payment config
+// @Description  Returns supported_assets plus site, epay and okpay config used by cashier/frontends.
+// @Description  The authenticated admin variant (/admin/api/v1/config) also includes OkPay shop credentials and internal callback settings.
+// @Tags         Payment Config
 // @Produce      json
-// @Param        network query string false "Network filter (e.g. tron, ethereum)"
+// @Success      200 {object} response.ApiResponse{data=response.PublicConfigResponse}
-// @Success      200 {object} response.ApiResponse{data=[]mdb.ChainToken}
 // @Failure      400 {object} response.ApiResponse
-// @Router       /payments/gmpay/v1/supported-assets/records [get]
+// @Router       /payments/gmpay/v1/config [get]
+// @Router       /admin/api/v1/config [get]
+func (c *BaseCommController) GetPublicConfig(ctx echo.Context) error {
+	supports, err := buildSupportedAssets()
+	if err != nil {
+		return c.FailJson(ctx, err)
+	}
+	okpay := response.OkPayPublicConfig{
+		Enabled:     data.GetOkPayEnabled(),
+		AllowTokens: data.GetOkPayAllowTokens(),
+	}
+	if ctx.Get(middleware.AdminUserIDKey) != nil {
+		okpay.ShopID = data.GetOkPayShopID()
+		okpay.ShopToken = data.GetOkPayShopToken()
+		okpay.APIURL = data.GetOkPayAPIURL()
+		okpay.CallbackURL = data.GetOkPayCallbackURL()
+		okpay.ReturnURL = data.GetOkPayReturnURL()
+		okpay.TimeoutSeconds = data.GetOkPayTimeoutSeconds()
+	}
+	return c.SucJson(ctx, response.PublicConfigResponse{
+		SupportedAssets: supports,
+		Site: response.SitePublicConfig{
+			CashierName:        data.GetBrandCashierName(),
+			LogoURL:            data.GetBrandLogoURL(),
+			WebsiteTitle:       data.GetBrandWebsiteTitle(),
+			SupportLink:        data.GetBrandSupportURL(),
+			BackgroundColor:    data.GetBrandBackgroundColor(),
+			BackgroundImageURL: data.GetBrandBackgroundImageURL(),
+		},
+		Epay: response.EpayPublicConfig{
+			DefaultToken:    data.GetSettingString(mdb.SettingKeyEpayDefaultToken, "usdt"),
+			DefaultCurrency: data.GetSettingString(mdb.SettingKeyEpayDefaultCurrency, "cny"),
+			DefaultNetwork:  data.GetSettingString(mdb.SettingKeyEpayDefaultNetwork, "tron"),
+		},
+		OkPay:   okpay,
+		Version: config.GetAppVersion(),
+	})
+}
+
+// ListSupportedAssetRecords is currently not wired to a public route.
+// Kept as an internal helper candidate for future admin/debug use.
 func (c *BaseCommController) ListSupportedAssetRecords(ctx echo.Context) error {
 	network := ctx.QueryParam("network")
 	list, err := data.ListEnabledChainTokens(network)
@@ -94,15 +129,8 @@ func (c *BaseCommController) ListSupportedAssetRecords(ctx echo.Context) error {
 	return c.SucJson(ctx, list)
 }
 
-// GetSupportedAsset 查询单条支持项（无需鉴权）。
+// GetSupportedAsset is currently not wired to a public route.
-// @Summary      Get a supported asset
+// Kept as an internal helper candidate for future admin/debug use.
-// @Description  Public endpoint. Returns one chain_token row by ID. Returns 404 if the token is disabled.
-// @Tags         Supported Assets
-// @Produce      json
-// @Param        id path int true "ChainToken ID"
-// @Success      200 {object} response.ApiResponse{data=mdb.ChainToken}
-// @Failure      400 {object} response.ApiResponse
-// @Router       /payments/gmpay/v1/supported-assets/{id} [get]
 func (c *BaseCommController) GetSupportedAsset(ctx echo.Context) error {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {

src/crypto/tron.go

@@ -1,7 +1,9 @@
 package crypto
 
 import (
+	"bytes"
 	"crypto/sha256"
+	"fmt"
 
 	"github.com/shengdoushi/base58"
 )
@@ -28,3 +30,24 @@ func EncodeCheck(input []byte) string {
 
 	return Encode(inputCheck)
 }
+
+// DecodeCheck decodes a Base58Check string and validates its 4-byte checksum.
+func DecodeCheck(input string) ([]byte, error) {
+	raw, err := base58.Decode(input, base58.BitcoinAlphabet)
+	if err != nil {
+		return nil, err
+	}
+	if len(raw) < 4 {
+		return nil, fmt.Errorf("base58check payload too short")
+	}
+
+	payload := raw[:len(raw)-4]
+	checksum := raw[len(raw)-4:]
+
+	h0 := sha256.Sum256(payload)
+	h1 := sha256.Sum256(h0[:])
+	if !bytes.Equal(checksum, h1[:4]) {
+		return nil, fmt.Errorf("base58check checksum mismatch")
+	}
+	return payload, nil
+}

src/install/installer.go

@@ -79,6 +79,60 @@ type installHandler struct {
 	done        chan struct{}
 }
 
+func installRootRedirectMiddleware(next echo.HandlerFunc) echo.HandlerFunc {
+	return func(c echo.Context) error {
+		if c.Request().Method == http.MethodGet && c.Request().URL.Path == "/" {
+			return c.Redirect(http.StatusFound, "/install")
+		}
+		return next(c)
+	}
+}
+
+func resolveInstallWWWRoot() string {
+	// Resolve www/ relative to the executable so SPA routes work regardless
+	// of the working directory. main.go extracts www/ next to the binary.
+	wwwRoot := "./www"
+	if exePath, err := os.Executable(); err == nil {
+		if exePath, err = filepath.EvalSymlinks(exePath); err == nil {
+			wwwRoot = filepath.Join(filepath.Dir(exePath), "www")
+		}
+	}
+	return wwwRoot
+}
+
+func newInstallServer(envFilePath, wwwRoot string) (*echo.Echo, *installHandler) {
+	h := &installHandler{
+		envFilePath: envFilePath,
+		done:        make(chan struct{}),
+	}
+
+	e := echo.New()
+	e.HideBanner = true
+	e.HidePort = true
+
+	// api routes for the install frontend
+	api := e.Group("/api")
+
+	api.GET("/install/defaults", h.GetDefaults)
+	api.POST("/install", h.Submit)
+
+	// Redirect browser visits on root to /install so first-run users land
+	// on the wizard directly. This must run before the static middleware,
+	// otherwise "/" is intercepted by the SPA index.html fallback.
+	e.Use(installRootRedirectMiddleware)
+
+	e.Use(middleware.StaticWithConfig(middleware.StaticConfig{
+		Skipper: func(c echo.Context) bool {
+			return luluHttp.ShouldSkipSPAFallback(c.Request().URL.Path)
+		},
+		HTML5: true,
+		Index: "index.html",
+		Root:  wwwRoot,
+	}))
+
+	return e, h
+}
+
 // GetDefaults returns default values for the install form.
 //
 // @Summary      Install — get default values
@@ -172,37 +226,7 @@ func RunInstallServer(listenAddr, envFilePath string) {
 		listenAddr = DefaultInstallAddr
 	}
 
-	h := &installHandler{
+	e, h := newInstallServer(envFilePath, resolveInstallWWWRoot())
-		envFilePath: envFilePath,
-		done:        make(chan struct{}),
-	}
-
-	e := echo.New()
-	e.HideBanner = true
-	e.HidePort = true
-
-	// api routes for the install frontend
-	api := e.Group("/api")
-
-	api.GET("/install/defaults", h.GetDefaults)
-	api.POST("/install", h.Submit)
-
-	// Resolve www/ relative to the executable so SPA routes work regardless
-	// of the working directory. main.go extracts www/ next to the binary.
-	wwwRoot := "./www"
-	if exePath, err := os.Executable(); err == nil {
-		if exePath, err = filepath.EvalSymlinks(exePath); err == nil {
-			wwwRoot = filepath.Join(filepath.Dir(exePath), "www")
-		}
-	}
-	e.Use(middleware.StaticWithConfig(middleware.StaticConfig{
-		Skipper: func(c echo.Context) bool {
-			return luluHttp.ShouldSkipSPAFallback(c.Request().URL.Path)
-		},
-		HTML5: true,
-		Index: "index.html",
-		Root:  wwwRoot,
-	}))
 
 	// Build a human-readable URL for the console hint.
 	installHost := listenAddr

src/install/installer_test.go

@@ -95,6 +95,55 @@ func TestInstallAPIDefaults(t *testing.T) {
 	}
 }
 
+func TestInstallServerRootRedirectsToInstall(t *testing.T) {
+	dir := t.TempDir()
+	wwwRoot := filepath.Join(dir, "www")
+	if err := os.MkdirAll(wwwRoot, 0o755); err != nil {
+		t.Fatalf("mkdir www root: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(wwwRoot, "index.html"), []byte("install-ui"), 0o644); err != nil {
+		t.Fatalf("write index.html: %v", err)
+	}
+
+	e, _ := newInstallServer(filepath.Join(dir, ".env"), wwwRoot)
+
+	req := httptest.NewRequest(http.MethodGet, "/", nil)
+	rec := httptest.NewRecorder()
+	e.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusFound {
+		t.Fatalf("status = %d, want 302; body: %s", rec.Code, rec.Body.String())
+	}
+	if got := rec.Header().Get("Location"); got != "/install" {
+		t.Fatalf("Location = %q, want /install", got)
+	}
+}
+
+func TestInstallServerServesSPAOnInstallRoute(t *testing.T) {
+	dir := t.TempDir()
+	wwwRoot := filepath.Join(dir, "www")
+	if err := os.MkdirAll(wwwRoot, 0o755); err != nil {
+		t.Fatalf("mkdir www root: %v", err)
+	}
+	const wantBody = "install-ui"
+	if err := os.WriteFile(filepath.Join(wwwRoot, "index.html"), []byte(wantBody), 0o644); err != nil {
+		t.Fatalf("write index.html: %v", err)
+	}
+
+	e, _ := newInstallServer(filepath.Join(dir, ".env"), wwwRoot)
+
+	req := httptest.NewRequest(http.MethodGet, "/install", nil)
+	rec := httptest.NewRecorder()
+	e.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want 200; body: %s", rec.Code, rec.Body.String())
+	}
+	if body := rec.Body.String(); body != wantBody {
+		t.Fatalf("body = %q, want %q", body, wantBody)
+	}
+}
+
 func TestInstallAPISubmit(t *testing.T) {
 	dir := t.TempDir()
 	envPath := filepath.Join(dir, ".env")

src/internal/testutil/testdb.go

@@ -20,7 +20,6 @@ func SetupTestDatabases(t testing.TB) func() {
 	t.Helper()
 
 	viper.Reset()
-	viper.Set("forced_usdt_rate", 1.0)
 	viper.Set("app_uri", "https://example.com")
 	viper.Set("order_expiration_time", 10)
 	viper.Set("order_notice_max_retry", 2)
@@ -31,7 +30,6 @@ func SetupTestDatabases(t testing.TB) func() {
 	config.HTTPAccessLog = false
 	config.SQLDebug = false
 	config.LogLevel = "error"
-	config.UsdtRate = 0
 	appLog.Sugar = zap.NewNop().Sugar()
 
 	mainDB := mustOpenSQLite(t, filepath.Join(t.TempDir(), "main.db"))
@@ -39,6 +37,7 @@ func SetupTestDatabases(t testing.TB) func() {
 
 	mustMigrate(t, mainDB,
 		&mdb.Orders{},
+		&mdb.ProviderOrder{},
 		&mdb.WalletAddress{},
 		&mdb.ApiKey{},
 		&mdb.Setting{},
@@ -52,6 +51,16 @@ func SetupTestDatabases(t testing.TB) func() {
 
 	dao.Mdb = mainDB
 	dao.RuntimeDB = runtimeDB
+	config.SettingsGetString = func(key string) string {
+		if dao.Mdb == nil {
+			return ""
+		}
+		var row mdb.Setting
+		if err := dao.Mdb.Where("`key` = ?", key).Take(&row).Error; err != nil {
+			return ""
+		}
+		return row.Value
+	}
 
 	// Seed all standard chains as enabled so IsChainEnabled checks pass.
 	for _, network := range []string{
@@ -74,12 +83,21 @@ func SetupTestDatabases(t testing.TB) func() {
 		Pid:  "1001", SecretKey: "test-token",
 		Status: mdb.ApiKeyStatusEnable,
 	})
+	if err := dao.Mdb.Create(&mdb.Setting{
+		Group: "rate",
+		Key:   "rate.forced_rate_list",
+		Value: `{"cny":{"usdt":1}}`,
+		Type:  "json",
+	}).Error; err != nil {
+		t.Fatalf("seed rate.forced_rate_list: %v", err)
+	}
 
 	return func() {
 		closeDB(t, runtimeDB)
 		closeDB(t, mainDB)
 		dao.Mdb = nil
 		dao.RuntimeDB = nil
+		config.SettingsGetString = nil
 		viper.Reset()
 	}
 }

src/main.go

@@ -12,9 +12,6 @@ import (
 	"github.com/gookit/color"
 )
 
-//go:embed all:static
-var staticDir embed.FS
-
 //go:embed all:www
 var wwwDir embed.FS
 
@@ -92,12 +89,6 @@ func releaseStatic(fs embed.FS, target string) (string, error) {
 }
 
 func main() {
-	staticPath, err := releaseStatic(staticDir, "static")
-	if err != nil {
-		panic(err)
-	}
-	fmt.Println("static released to:", staticPath)
-
 	wwwwPath, err := releaseStatic(wwwDir, "www")
 	if err != nil {
 		panic(err)

src/middleware/check_jwt.go

@@ -27,16 +27,9 @@ const (
 func CheckAdminJWT() echo.MiddlewareFunc {
 	return func(next echo.HandlerFunc) echo.HandlerFunc {
 		return func(ctx echo.Context) error {
-			raw := strings.TrimSpace(ctx.Request().Header.Get("Authorization"))
+			token, err := adminTokenFromAuthorization(ctx.Request().Header.Get("Authorization"))
-			if raw == "" {
+			if err != nil {
-				return echo.NewHTTPError(http.StatusUnauthorized, "missing authorization header")
+				return err
-			}
-			if !strings.HasPrefix(raw, "Bearer ") {
-				return echo.NewHTTPError(http.StatusUnauthorized, "authorization header must use Bearer scheme")
-			}
-			token := strings.TrimSpace(raw[len("Bearer "):])
-			if token == "" {
-				return echo.NewHTTPError(http.StatusUnauthorized, "empty token")
 			}
 			claims, err := appjwt.Parse(token)
 			if err != nil {
@@ -48,3 +41,23 @@ func CheckAdminJWT() echo.MiddlewareFunc {
 		}
 	}
 }
+
+func adminTokenFromAuthorization(header string) (string, error) {
+	raw := strings.TrimSpace(header)
+	if raw == "" {
+		return "", echo.NewHTTPError(http.StatusUnauthorized, "missing authorization header")
+	}
+
+	const bearerPrefix = "Bearer "
+	token := raw
+	if strings.HasPrefix(raw, bearerPrefix) {
+		token = strings.TrimSpace(raw[len(bearerPrefix):])
+	} else if raw == strings.TrimSpace(bearerPrefix) {
+		token = ""
+	}
+
+	if token == "" {
+		return "", echo.NewHTTPError(http.StatusUnauthorized, "empty token")
+	}
+	return token, nil
+}

src/middleware/check_jwt_test.go

@@ -0,0 +1,118 @@
+package middleware
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/GMWalletApp/epusdt/internal/testutil"
+	"github.com/GMWalletApp/epusdt/model/data"
+	"github.com/GMWalletApp/epusdt/model/mdb"
+	appjwt "github.com/GMWalletApp/epusdt/util/jwt"
+	"github.com/labstack/echo/v4"
+)
+
+func TestAdminTokenFromAuthorization(t *testing.T) {
+	tests := []struct {
+		name    string
+		header  string
+		want    string
+		wantErr bool
+	}{
+		{
+			name:   "bearer token",
+			header: "Bearer jwt-token",
+			want:   "jwt-token",
+		},
+		{
+			name:   "bare token",
+			header: "jwt-token",
+			want:   "jwt-token",
+		},
+		{
+			name:   "trimmed bare token",
+			header: "  jwt-token  ",
+			want:   "jwt-token",
+		},
+		{
+			name:    "missing header",
+			header:  "",
+			wantErr: true,
+		},
+		{
+			name:    "empty bearer token",
+			header:  "Bearer ",
+			wantErr: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := adminTokenFromAuthorization(tt.header)
+			if tt.wantErr {
+				if err == nil {
+					t.Fatal("expected error")
+				}
+				return
+			}
+			if err != nil {
+				t.Fatalf("unexpected error: %v", err)
+			}
+			if got != tt.want {
+				t.Fatalf("token = %q, want %q", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestCheckAdminJWTAcceptsBearerAndBareTokens(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	if err := data.SetSetting(mdb.SettingGroupSystem, mdb.SettingKeyJwtSecret, "test-jwt-secret", mdb.SettingTypeString); err != nil {
+		t.Fatalf("seed jwt secret: %v", err)
+	}
+	token, err := appjwt.Sign(42, "admin")
+	if err != nil {
+		t.Fatalf("sign jwt: %v", err)
+	}
+
+	tests := []struct {
+		name   string
+		header string
+	}{
+		{
+			name:   "bearer token",
+			header: "Bearer " + token,
+		},
+		{
+			name:   "bare token",
+			header: token,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			e := echo.New()
+			e.Use(CheckAdminJWT())
+			e.GET("/", func(ctx echo.Context) error {
+				if got := ctx.Get(AdminUserIDKey); got != uint64(42) {
+					t.Fatalf("%s = %v, want 42", AdminUserIDKey, got)
+				}
+				if got := ctx.Get(AdminUsernameKey); got != "admin" {
+					t.Fatalf("%s = %v, want admin", AdminUsernameKey, got)
+				}
+				return ctx.NoContent(http.StatusNoContent)
+			})
+
+			req := httptest.NewRequest(http.MethodGet, "/", nil)
+			req.Header.Set(echo.HeaderAuthorization, tt.header)
+			rec := httptest.NewRecorder()
+			e.ServeHTTP(rec, req)
+
+			if rec.Code != http.StatusNoContent {
+				t.Fatalf("status = %d, want %d; body=%s", rec.Code, http.StatusNoContent, rec.Body.String())
+			}
+		})
+	}
+}

src/model/dao/mdb_table_init.go

@@ -6,6 +6,7 @@ import (
 	"strings"
 	"sync"
 
+	"github.com/GMWalletApp/epusdt/config"
 	"github.com/GMWalletApp/epusdt/model/mdb"
 	"github.com/gookit/color"
 	"gorm.io/gorm/clause"
@@ -35,6 +36,7 @@ func MdbTableInit() {
 			{"Chain", &mdb.Chain{}},
 			{"ChainToken", &mdb.ChainToken{}},
 			{"RpcNode", &mdb.RpcNode{}},
+			{"ProviderOrder", &mdb.ProviderOrder{}},
 		}
 		for _, m := range migrations {
 			if err := Mdb.AutoMigrate(m.model); err != nil {
@@ -44,6 +46,7 @@ func MdbTableInit() {
 		}
 
 		seedChains()
+		backfillRpcNodePurpose()
 		seedRpcNodes()
 		seedChainTokens()
 		seedDefaultSettings()
@@ -104,14 +107,7 @@ func seedChainTokens() {
 // seedRpcNodes inserts default RPC endpoints for each chain. Checks per
 // (network, url) so re-runs are idempotent and admin edits persist.
 func seedRpcNodes() {
-	defaults := []mdb.RpcNode{
+	defaults := defaultRpcNodes()
-		{Network: mdb.NetworkTron, Url: "https://api.trongrid.io", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Status: mdb.RpcNodeStatusUnknown},
-		{Network: mdb.NetworkEthereum, Url: "wss://ethereum.publicnode.com", Type: mdb.RpcNodeTypeWs, Weight: 1, Enabled: true, Status: mdb.RpcNodeStatusUnknown},
-		{Network: mdb.NetworkSolana, Url: "https://api.mainnet-beta.solana.com", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Status: mdb.RpcNodeStatusUnknown},
-		{Network: mdb.NetworkBsc, Url: "wss://bsc.drpc.org", Type: mdb.RpcNodeTypeWs, Weight: 1, Enabled: true, Status: mdb.RpcNodeStatusUnknown},
-		{Network: mdb.NetworkPolygon, Url: "wss://polygon-bor-rpc.publicnode.com", Type: mdb.RpcNodeTypeWs, Weight: 1, Enabled: true, Status: mdb.RpcNodeStatusUnknown},
-		{Network: mdb.NetworkPlasma, Url: "wss://rpc.plasma.to", Type: mdb.RpcNodeTypeWs, Weight: 1, Enabled: true, Status: mdb.RpcNodeStatusUnknown},
-	}
 	for _, d := range defaults {
 		var count int64
 		if err := Mdb.Model(&mdb.RpcNode{}).
@@ -129,13 +125,46 @@ func seedRpcNodes() {
 	}
 }
 
+func defaultRpcNodes() []mdb.RpcNode {
+	defaults := []mdb.RpcNode{
+		{Network: mdb.NetworkTron, Url: "https://api.trongrid.io", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusUnknown},
+		{Network: mdb.NetworkEthereum, Url: "wss://ethereum.publicnode.com", Type: mdb.RpcNodeTypeWs, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusUnknown},
+		{Network: mdb.NetworkSolana, Url: "https://api.mainnet-beta.solana.com", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusUnknown},
+		{Network: mdb.NetworkBsc, Url: "wss://bsc.drpc.org", Type: mdb.RpcNodeTypeWs, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusUnknown},
+		{Network: mdb.NetworkPolygon, Url: "wss://polygon-bor-rpc.publicnode.com", Type: mdb.RpcNodeTypeWs, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusUnknown},
+		{Network: mdb.NetworkPlasma, Url: "wss://rpc.plasma.to", Type: mdb.RpcNodeTypeWs, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusUnknown},
+		{Network: mdb.NetworkEthereum, Url: "https://rpc.epusdt.com/ethereum", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeManualVerify, Status: mdb.RpcNodeStatusUnknown},
+		{Network: mdb.NetworkBsc, Url: "https://rpc.epusdt.com/binance", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeManualVerify, Status: mdb.RpcNodeStatusUnknown},
+		{Network: mdb.NetworkPolygon, Url: "https://rpc.epusdt.com/polygon", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeManualVerify, Status: mdb.RpcNodeStatusUnknown},
+	}
+	return defaults
+}
+
+func backfillRpcNodePurpose() {
+	if err := Mdb.Model(&mdb.RpcNode{}).
+		Where("purpose = '' OR purpose IS NULL").
+		Update("purpose", mdb.RpcNodePurposeGeneral).Error; err != nil {
+		color.Red.Printf("[store_db] backfill rpc_nodes purpose err=%s\n", err)
+	}
+}
+
 // seedDefaultSettings inserts built-in default settings.
 // Uses ON CONFLICT DO NOTHING so admin edits persist across restarts.
 func seedDefaultSettings() {
+	okPayCallbackURL := strings.TrimRight(strings.TrimSpace(config.GetAppUri()), "/")
+	if okPayCallbackURL != "" {
+		okPayCallbackURL += "/payments/okpay/v1/notify"
+	}
 	defaults := []mdb.Setting{
+		{Group: mdb.SettingGroupSystem, Key: mdb.SettingKeyAmountPrecision, Value: "2", Type: mdb.SettingTypeInt},
 		{Group: mdb.SettingGroupEpay, Key: mdb.SettingKeyEpayDefaultToken, Value: "usdt", Type: mdb.SettingTypeString},
 		{Group: mdb.SettingGroupEpay, Key: mdb.SettingKeyEpayDefaultCurrency, Value: "cny", Type: mdb.SettingTypeString},
 		{Group: mdb.SettingGroupEpay, Key: mdb.SettingKeyEpayDefaultNetwork, Value: "tron", Type: mdb.SettingTypeString},
+		{Group: mdb.SettingGroupOkPay, Key: mdb.SettingKeyOkPayEnabled, Value: "false", Type: mdb.SettingTypeBool},
+		{Group: mdb.SettingGroupOkPay, Key: mdb.SettingKeyOkPayAPIURL, Value: "https://api.okaypay.me/shop/", Type: mdb.SettingTypeString},
+		{Group: mdb.SettingGroupOkPay, Key: mdb.SettingKeyOkPayCallbackURL, Value: okPayCallbackURL, Type: mdb.SettingTypeString},
+		{Group: mdb.SettingGroupOkPay, Key: mdb.SettingKeyOkPayTimeoutSeconds, Value: "10", Type: mdb.SettingTypeInt},
+		{Group: mdb.SettingGroupOkPay, Key: mdb.SettingKeyOkPayAllowTokens, Value: "USDT,TRX", Type: mdb.SettingTypeString},
 	}
 	if err := Mdb.Clauses(clause.OnConflict{DoNothing: true}).Create(&defaults).Error; err != nil {
 		color.Red.Printf("[store_db] seed default settings err=%s\n", err)

src/model/dao/mdb_table_init_test.go

@@ -0,0 +1,43 @@
+package dao
+
+import (
+	"testing"
+
+	"github.com/GMWalletApp/epusdt/model/mdb"
+)
+
+func TestDefaultRpcNodesIncludesManualVerifyEpusdtEvmNodes(t *testing.T) {
+	want := map[string]string{
+		mdb.NetworkEthereum: "https://rpc.epusdt.com/ethereum",
+		mdb.NetworkBsc:      "https://rpc.epusdt.com/binance",
+		mdb.NetworkPolygon:  "https://rpc.epusdt.com/polygon",
+	}
+	got := make(map[string]mdb.RpcNode)
+	for _, node := range defaultRpcNodes() {
+		if node.Purpose != mdb.RpcNodePurposeManualVerify {
+			continue
+		}
+		if _, ok := want[node.Network]; ok {
+			got[node.Network] = node
+		}
+	}
+
+	for network, url := range want {
+		node, ok := got[network]
+		if !ok {
+			t.Fatalf("missing manual_verify seed rpc node for %s", network)
+		}
+		if node.Url != url {
+			t.Fatalf("%s manual_verify seed url = %q, want %q", network, node.Url, url)
+		}
+		if node.Type != mdb.RpcNodeTypeHttp {
+			t.Fatalf("%s manual_verify seed type = %q, want %q", network, node.Type, mdb.RpcNodeTypeHttp)
+		}
+		if !node.Enabled {
+			t.Fatalf("%s manual_verify seed enabled = false, want true", network)
+		}
+		if node.Status != mdb.RpcNodeStatusUnknown {
+			t.Fatalf("%s manual_verify seed status = %q, want %q", network, node.Status, mdb.RpcNodeStatusUnknown)
+		}
+	}
+}

src/model/dao/runtime_sqlite.go

@@ -44,6 +44,9 @@ func RuntimeInit() error {
 	if err = RuntimeDB.Exec("DROP INDEX IF EXISTS transaction_lock_address_token_amount_uindex").Error; err != nil {
 		return err
 	}
+	if err = RuntimeDB.Exec("DROP INDEX IF EXISTS transaction_lock_network_address_token_amount_uindex").Error; err != nil {
+		return err
+	}
 	if err = RuntimeDB.AutoMigrate(&mdb.TransactionLock{}); err != nil {
 		color.Red.Printf("[runtime_db] sqlite migrate DB(TransactionLock),err=%s\n", err)
 		return err

src/model/data/admin_user_data.go

@@ -40,6 +40,9 @@ type InitialAdminPasswordHashInfo struct {
 // can print it to the console. Idempotent — subsequent calls return
 // ("", false, nil).
 func EnsureDefaultAdmin() (password string, created bool, err error) {
+	if err := purgeDeletedInitialAdminPasswordPlain(); err != nil {
+		return "", false, err
+	}
 	var count int64
 	if err := dao.Mdb.Model(&mdb.AdminUser{}).Count(&count).Error; err != nil {
 		return "", false, err
@@ -68,6 +71,12 @@ func EnsureDefaultAdmin() (password string, created bool, err error) {
 	return password, true, nil
 }
 
+func purgeDeletedInitialAdminPasswordPlain() error {
+	return dao.Mdb.Unscoped().
+		Where("`key` = ? AND deleted_at IS NOT NULL", mdb.SettingKeyInitAdminPasswordPlain).
+		Delete(&mdb.Setting{}).Error
+}
+
 func randomAdminPassword() string {
 	b := make([]byte, 16)
 	_, _ = rand.Read(b)
@@ -121,9 +130,11 @@ func initAdminPasswordState(plain string) error {
 }
 
 func upsertSettingRow(tx *gorm.DB, row mdb.Setting) error {
+	updates := clause.AssignmentColumns([]string{"group", "value", "type", "description", "updated_at"})
+	updates = append(updates, clause.Assignment{Column: clause.Column{Name: "deleted_at"}, Value: nil})
 	return tx.Clauses(clause.OnConflict{
 		Columns:   []clause.Column{{Name: "key"}},
-		DoUpdates: clause.AssignmentColumns([]string{"group", "value", "type", "description", "updated_at"}),
+		DoUpdates: updates,
 	}).Create(&row).Error
 }
 
@@ -154,7 +165,7 @@ func ConsumeInitialAdminPassword() (string, error) {
 			return ErrInitAdminPasswordUnavailable
 		}
 		password = row.Value
-		res := tx.Where("`key` = ?", mdb.SettingKeyInitAdminPasswordPlain).Delete(&mdb.Setting{})
+		res := tx.Unscoped().Where("`key` = ?", mdb.SettingKeyInitAdminPasswordPlain).Delete(&mdb.Setting{})
 		if res.Error != nil {
 			return res.Error
 		}

src/model/data/admin_user_data_test.go

@@ -0,0 +1,122 @@
+package data
+
+import (
+	"testing"
+
+	"github.com/GMWalletApp/epusdt/internal/testutil"
+	"github.com/GMWalletApp/epusdt/model/dao"
+	"github.com/GMWalletApp/epusdt/model/mdb"
+)
+
+func TestUpsertSettingRowRestoresSoftDeletedSetting(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	row := mdb.Setting{
+		Group: mdb.SettingGroupSystem,
+		Key:   mdb.SettingKeyInitAdminPasswordChanged,
+		Value: "false",
+		Type:  mdb.SettingTypeBool,
+	}
+	if err := upsertSettingRow(dao.Mdb, row); err != nil {
+		t.Fatalf("seed setting: %v", err)
+	}
+	if err := dao.Mdb.Where("`key` = ?", row.Key).Delete(&mdb.Setting{}).Error; err != nil {
+		t.Fatalf("delete setting: %v", err)
+	}
+
+	row.Value = "true"
+	if err := upsertSettingRow(dao.Mdb, row); err != nil {
+		t.Fatalf("restore setting: %v", err)
+	}
+
+	var restored mdb.Setting
+	if err := dao.Mdb.Where("`key` = ?", row.Key).Take(&restored).Error; err != nil {
+		t.Fatalf("load restored setting: %v", err)
+	}
+	if restored.Value != "true" {
+		t.Fatalf("restored value = %q, want true", restored.Value)
+	}
+	if restored.DeletedAt.Valid {
+		t.Fatalf("restored setting still has deleted_at=%v", restored.DeletedAt)
+	}
+}
+
+func TestConsumeInitialAdminPasswordHardDeletesPlaintext(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	const password = "init-pass-plain"
+	if err := initAdminPasswordState(password); err != nil {
+		t.Fatalf("seed initial password state: %v", err)
+	}
+
+	got, err := ConsumeInitialAdminPassword()
+	if err != nil {
+		t.Fatalf("consume initial password: %v", err)
+	}
+	if got != password {
+		t.Fatalf("password = %q, want %q", got, password)
+	}
+
+	var count int64
+	if err := dao.Mdb.Unscoped().
+		Model(&mdb.Setting{}).
+		Where("`key` = ?", mdb.SettingKeyInitAdminPasswordPlain).
+		Count(&count).Error; err != nil {
+		t.Fatalf("count plaintext setting: %v", err)
+	}
+	if count != 0 {
+		t.Fatalf("plaintext setting rows after consume = %d, want 0", count)
+	}
+	if !GetSettingBool(mdb.SettingKeyInitAdminPasswordFetched, false) {
+		t.Fatal("expected fetched flag to be true")
+	}
+}
+
+func TestEnsureDefaultAdminPurgesLegacySoftDeletedPlaintext(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	hash, err := HashPassword("existing-password")
+	if err != nil {
+		t.Fatalf("hash password: %v", err)
+	}
+	if err := dao.Mdb.Create(&mdb.AdminUser{
+		Username:     defaultAdminUsername,
+		PasswordHash: hash,
+		Status:       mdb.AdminUserStatusEnable,
+	}).Error; err != nil {
+		t.Fatalf("seed admin: %v", err)
+	}
+	if err := dao.Mdb.Create(&mdb.Setting{
+		Group: mdb.SettingGroupSystem,
+		Key:   mdb.SettingKeyInitAdminPasswordPlain,
+		Value: "legacy-soft-deleted-plain",
+		Type:  mdb.SettingTypeString,
+	}).Error; err != nil {
+		t.Fatalf("seed plaintext setting: %v", err)
+	}
+	if err := dao.Mdb.Where("`key` = ?", mdb.SettingKeyInitAdminPasswordPlain).Delete(&mdb.Setting{}).Error; err != nil {
+		t.Fatalf("soft delete plaintext setting: %v", err)
+	}
+
+	password, created, err := EnsureDefaultAdmin()
+	if err != nil {
+		t.Fatalf("ensure default admin: %v", err)
+	}
+	if created || password != "" {
+		t.Fatalf("created=%v password=%q, want existing admin unchanged", created, password)
+	}
+
+	var count int64
+	if err := dao.Mdb.Unscoped().
+		Model(&mdb.Setting{}).
+		Where("`key` = ?", mdb.SettingKeyInitAdminPasswordPlain).
+		Count(&count).Error; err != nil {
+		t.Fatalf("count plaintext setting: %v", err)
+	}
+	if count != 0 {
+		t.Fatalf("legacy plaintext rows after ensure = %d, want 0", count)
+	}
+}

src/model/data/order_data.go

@@ -23,9 +23,14 @@ type PendingCallbackOrder struct {
 	UpdatedAt       carbon.Time `gorm:"column:updated_at"`
 }
 
+func normalizeAmount(amount float64, precision int) (int64, string) {
+	precision = NormalizeAmountPrecision(precision)
+	value := decimal.NewFromFloat(amount).Round(int32(precision))
+	return value.Shift(int32(precision)).IntPart(), value.StringFixed(int32(precision))
+}
+
 func normalizeLockAmount(amount float64) (int64, string) {
-	value := decimal.NewFromFloat(amount).Round(2)
+	return normalizeAmount(amount, GetAmountPrecision())
-	return value.Shift(2).IntPart(), value.StringFixed(2)
 }
 
 func normalizeLockNetwork(network string) string {
@@ -53,6 +58,30 @@ func applyLockAddressFilter(tx *gorm.DB, network, address string) *gorm.DB {
 	return tx.Where("address = ?", address)
 }
 
+func activeLocksForAddress(tx *gorm.DB, network, address, token string, now time.Time) *gorm.DB {
+	query := tx.Model(&mdb.TransactionLock{}).
+		Where("network = ?", normalizeLockNetwork(network)).
+		Where("token = ?", normalizeLockToken(token)).
+		Where("expires_at > ?", now)
+	return applyLockAddressFilter(query, network, address)
+}
+
+func lockMatchesAmount(lock mdb.TransactionLock, amount float64) bool {
+	precision := NormalizeAmountPrecision(lock.AmountPrecision)
+	scaledAmount, _ := normalizeAmount(amount, precision)
+	return lock.AmountScaled == scaledAmount
+}
+
+func lockAmountDecimal(lock mdb.TransactionLock) decimal.Decimal {
+	if strings.TrimSpace(lock.AmountText) != "" {
+		if value, err := decimal.NewFromString(lock.AmountText); err == nil {
+			return value
+		}
+	}
+	precision := NormalizeAmountPrecision(lock.AmountPrecision)
+	return decimal.NewFromInt(lock.AmountScaled).Shift(int32(-precision))
+}
+
 // GetOrderInfoByOrderId fetches an order by merchant order id.
 func GetOrderInfoByOrderId(orderId string) (*mdb.Orders, error) {
 	order := new(mdb.Orders)
@@ -79,6 +108,56 @@ func GetOrderByBlockIdWithTransaction(tx *gorm.DB, blockID string) (*mdb.Orders,
 	return order, err
 }
 
+// GetOrderByBlockTransactionIDs fetches the first order whose stored tx id
+// matches any equivalent spelling supplied by the caller.
+func GetOrderByBlockTransactionIDs(blockIDs []string) (*mdb.Orders, error) {
+	order := new(mdb.Orders)
+	seen := make(map[string]struct{}, len(blockIDs))
+	candidates := make([]string, 0, len(blockIDs))
+	for _, blockID := range blockIDs {
+		blockID = strings.TrimSpace(blockID)
+		if blockID == "" {
+			continue
+		}
+		if _, ok := seen[blockID]; ok {
+			continue
+		}
+		seen[blockID] = struct{}{}
+		candidates = append(candidates, blockID)
+	}
+	if len(candidates) == 0 {
+		return order, nil
+	}
+	err := dao.Mdb.Model(order).Where("block_transaction_id IN ?", candidates).Limit(1).Find(order).Error
+	return order, err
+}
+
+// GetOrderByBlockTransactionIDsCaseInsensitive fetches the first order whose
+// stored tx id matches any candidate after ASCII case folding. This is used
+// only for hex-based chain tx ids; case-sensitive signatures must keep using
+// GetOrderByBlockTransactionIDs.
+func GetOrderByBlockTransactionIDsCaseInsensitive(blockIDs []string) (*mdb.Orders, error) {
+	order := new(mdb.Orders)
+	seen := make(map[string]struct{}, len(blockIDs))
+	candidates := make([]string, 0, len(blockIDs))
+	for _, blockID := range blockIDs {
+		blockID = strings.ToLower(strings.TrimSpace(blockID))
+		if blockID == "" {
+			continue
+		}
+		if _, ok := seen[blockID]; ok {
+			continue
+		}
+		seen[blockID] = struct{}{}
+		candidates = append(candidates, blockID)
+	}
+	if len(candidates) == 0 {
+		return order, nil
+	}
+	err := dao.Mdb.Model(order).Where("LOWER(block_transaction_id) IN ?", candidates).Limit(1).Find(order).Error
+	return order, err
+}
+
 // OrderSuccessWithTransaction marks an order as paid only if it is still waiting for payment.
 func OrderSuccessWithTransaction(tx *gorm.DB, req *request.OrderProcessingRequest) (bool, error) {
 	result := tx.Model(&mdb.Orders{}).
@@ -202,6 +281,18 @@ func MarkOrderSelected(tradeId string) error {
 		Update("is_selected", true).Error
 }
 
+// ExpireOrderByTradeID marks a waiting order as expired. Used to retire failed
+// child-order attempts that should not remain selectable/reusable.
+func ExpireOrderByTradeID(tradeId string) error {
+	return dao.Mdb.Model(&mdb.Orders{}).
+		Where("trade_id = ?", tradeId).
+		Where("status = ?", mdb.StatusWaitPay).
+		Updates(map[string]interface{}{
+			"status":      mdb.StatusExpired,
+			"is_selected": false,
+		}).Error
+}
+
 // RefreshOrderExpiration resets created_at to now so the expiration timer restarts.
 // Called on the parent order when a sub-order is created or returned.
 func RefreshOrderExpiration(tradeId string) error {
@@ -266,45 +357,43 @@ func ExpireOrderByTradeId(tradeId string) error {
 func GetTradeIdByWalletAddressAndAmountAndToken(network string, address string, token string, amount float64) (string, error) {
 	network = normalizeLockNetwork(network)
 	address = normalizeLockAddress(network, address)
-	scaledAmount, _ := normalizeLockAmount(amount)
+	var locks []mdb.TransactionLock
-	var lock mdb.TransactionLock
+	err := activeLocksForAddress(dao.RuntimeDB, network, address, token, time.Now()).
-	query := dao.RuntimeDB.Model(&mdb.TransactionLock{}).
+		Order("created_at ASC").
-		Where("network = ?", network).
+		Find(&locks).Error
-		Where("token = ?", normalizeLockToken(token)).
-		Where("amount_scaled = ?", scaledAmount).
-		Where("expires_at > ?", time.Now())
-	query = applyLockAddressFilter(query, network, address)
-	err := query.Limit(1).Find(&lock).Error
 	if err != nil {
 		return "", err
 	}
-	if lock.ID <= 0 {
+	for _, lock := range locks {
-		return "", nil
+		if lockMatchesAmount(lock, amount) {
+			return lock.TradeId, nil
+		}
 	}
-	return lock.TradeId, nil
+	return "", nil
 }
 
 // LockTransaction reserves a network+address+token+amount pair in sqlite until expiration.
 func LockTransaction(network, address, token, tradeID string, amount float64, expirationTime time.Duration) error {
 	network = normalizeLockNetwork(network)
 	address = normalizeLockAddress(network, address)
-	scaledAmount, amountText := normalizeLockAmount(amount)
+	precision := GetAmountPrecision()
+	scaledAmount, amountText := normalizeAmount(amount, precision)
 	normalizedToken := normalizeLockToken(token)
 	now := time.Now()
 	lock := &mdb.TransactionLock{
-		Network:      network,
+		Network:         network,
-		Address:      address,
+		Address:         address,
-		Token:        normalizedToken,
+		Token:           normalizedToken,
-		AmountScaled: scaledAmount,
+		AmountScaled:    scaledAmount,
-		AmountText:   amountText,
+		AmountText:      amountText,
-		TradeId:      tradeID,
+		AmountPrecision: precision,
-		ExpiresAt:    now.Add(expirationTime),
+		TradeId:         tradeID,
+		ExpiresAt:       now.Add(expirationTime),
 	}
 
 	return dao.RuntimeDB.Transaction(func(tx *gorm.DB) error {
 		expiredQuery := tx.Where("network = ?", network).
 			Where("token = ?", normalizedToken).
-			Where("amount_scaled = ?", scaledAmount).
 			Where("expires_at <= ?", now)
 		expiredQuery = applyLockAddressFilter(expiredQuery, network, address)
 		if err := expiredQuery.Delete(&mdb.TransactionLock{}).Error; err != nil {
@@ -314,6 +403,18 @@ func LockTransaction(network, address, token, tradeID string, amount float64, ex
 			return err
 		}
 
+		var existing []mdb.TransactionLock
+		if err := activeLocksForAddress(tx, network, address, normalizedToken, now).
+			Find(&existing).Error; err != nil {
+			return err
+		}
+		candidateAmount := lockAmountDecimal(*lock)
+		for _, item := range existing {
+			if lockAmountDecimal(item).Equal(candidateAmount) {
+				return ErrTransactionLocked
+			}
+		}
+
 		result := tx.Clauses(clause.OnConflict{DoNothing: true}).Create(lock)
 		if result.Error != nil {
 			return result.Error
@@ -329,13 +430,21 @@ func LockTransaction(network, address, token, tradeID string, amount float64, ex
 func UnLockTransaction(network string, address string, token string, amount float64) error {
 	network = normalizeLockNetwork(network)
 	address = normalizeLockAddress(network, address)
-	scaledAmount, _ := normalizeLockAmount(amount)
+	var locks []mdb.TransactionLock
-	query := dao.RuntimeDB.
+	if err := activeLocksForAddress(dao.RuntimeDB, network, address, token, time.Now()).
-		Where("network = ?", network).
+		Find(&locks).Error; err != nil {
-		Where("token = ?", normalizeLockToken(token)).
+		return err
-		Where("amount_scaled = ?", scaledAmount)
+	}
-	query = applyLockAddressFilter(query, network, address)
+	ids := make([]uint64, 0, len(locks))
-	return query.Delete(&mdb.TransactionLock{}).Error
+	for _, lock := range locks {
+		if lockMatchesAmount(lock, amount) {
+			ids = append(ids, lock.ID)
+		}
+	}
+	if len(ids) == 0 {
+		return nil
+	}
+	return dao.RuntimeDB.Where("id IN ?", ids).Delete(&mdb.TransactionLock{}).Error
 }
 
 func UnLockTransactionByTradeId(tradeID string) error {

src/model/data/order_data_stats.go

@@ -1,6 +1,7 @@
 package data
 
 import (
+	"fmt"
 	"time"
 
 	"github.com/GMWalletApp/epusdt/model/dao"
@@ -28,25 +29,40 @@ type AddressDailyStat struct {
 	ActualAmount float64 `json:"actual_amount"`
 }
 
+func statsBucketExpr(column string, hourly bool) (string, error) {
+	dialect := "sqlite"
+	if dao.Mdb != nil && dao.Mdb.Dialector != nil {
+		dialect = dao.Mdb.Dialector.Name()
+	}
+	return statsBucketExprForDialect(dialect, column, hourly)
+}
+
+func statsBucketExprForDialect(dialect, column string, hourly bool) (string, error) {
+	switch dialect {
+	case "sqlite", "":
+		// modernc SQLite stores time.Time as Go's time.String() by default.
+		// Prefix buckets work for that format and SQLite datetime text.
+		if hourly {
+			return fmt.Sprintf("replace(substr(%s, 1, 13), 'T', ' ') || ':00'", column), nil
+		}
+		return fmt.Sprintf("substr(%s, 1, 10)", column), nil
+	case "postgres":
+		if hourly {
+			return fmt.Sprintf("TO_CHAR(%s, 'YYYY-MM-DD HH24:00')", column), nil
+		}
+		return fmt.Sprintf("TO_CHAR(%s, 'YYYY-MM-DD')", column), nil
+	default:
+		return "", fmt.Errorf("unsupported database dialect for dashboard stats: %s", dialect)
+	}
+}
+
 // DailyOrderStats returns per-day counts/amounts within [start, end],
 // zero-filling any days in the range that have no orders.
 // Only orders in StatusPaySuccess contribute to Amount sums — that's
 // what the user means by "流水". Pending orders count toward OrderCount
 // to keep成交率 computable.
 func DailyOrderStats(start, end time.Time) ([]DailyStat, error) {
-	var rows []DailyStat
+	rows, err := queryOrderStats(start, end, false)
-	err := dao.Mdb.Model(&mdb.Orders{}).
-		Select(`DATE(created_at) AS day,
-            COUNT(*) AS order_count,
-            SUM(CASE WHEN status = ? THEN 1 ELSE 0 END) AS success_count,
-            SUM(CASE WHEN status = ? THEN amount ELSE 0 END) AS total_amount,
-            SUM(CASE WHEN status = ? THEN actual_amount ELSE 0 END) AS actual_amount`,
-			mdb.StatusPaySuccess, mdb.StatusPaySuccess, mdb.StatusPaySuccess).
-		Where("created_at >= ?", start).
-		Where("created_at <= ?", end).
-		Group("DATE(created_at)").
-		Order("day ASC").
-		Scan(&rows).Error
 	if err != nil {
 		return nil, err
 	}
@@ -56,25 +72,34 @@ func DailyOrderStats(start, end time.Time) ([]DailyStat, error) {
 // HourlyOrderStats returns per-hour counts/amounts within [start, end],
 // zero-filling any hours that have no orders.
 func HourlyOrderStats(start, end time.Time) ([]DailyStat, error) {
-	var rows []DailyStat
+	rows, err := queryOrderStats(start, end, true)
-	err := dao.Mdb.Model(&mdb.Orders{}).
-		Select(`strftime('%Y-%m-%d %H:00', created_at) AS day,
-            COUNT(*) AS order_count,
-            SUM(CASE WHEN status = ? THEN 1 ELSE 0 END) AS success_count,
-            SUM(CASE WHEN status = ? THEN amount ELSE 0 END) AS total_amount,
-            SUM(CASE WHEN status = ? THEN actual_amount ELSE 0 END) AS actual_amount`,
-			mdb.StatusPaySuccess, mdb.StatusPaySuccess, mdb.StatusPaySuccess).
-		Where("created_at >= ?", start).
-		Where("created_at <= ?", end).
-		Group("strftime('%Y-%m-%d %H:00', created_at)").
-		Order("day ASC").
-		Scan(&rows).Error
 	if err != nil {
 		return nil, err
 	}
 	return fillHourlyStats(start, end, rows), nil
 }
 
+func queryOrderStats(start, end time.Time, hourly bool) ([]DailyStat, error) {
+	var rows []DailyStat
+	bucket, err := statsBucketExpr("created_at", hourly)
+	if err != nil {
+		return nil, err
+	}
+	err = dao.Mdb.Model(&mdb.Orders{}).
+		Select(fmt.Sprintf(`%s AS day,
+            COUNT(*) AS order_count,
+            SUM(CASE WHEN status = ? THEN 1 ELSE 0 END) AS success_count,
+            SUM(CASE WHEN status = ? THEN amount ELSE 0 END) AS total_amount,
+            SUM(CASE WHEN status = ? THEN actual_amount ELSE 0 END) AS actual_amount`, bucket),
+			mdb.StatusPaySuccess, mdb.StatusPaySuccess, mdb.StatusPaySuccess).
+		Where("created_at >= ?", start).
+		Where("created_at <= ?", end).
+		Group(bucket).
+		Order("day ASC").
+		Scan(&rows).Error
+	return rows, err
+}
+
 // fillDailyStats generates a zero-filled slice covering every calendar
 // day in [start, end]. Days present in rows overwrite the zero entries.
 func fillDailyStats(start, end time.Time, rows []DailyStat) []DailyStat {
@@ -122,15 +147,7 @@ func fillHourlyStats(start, end time.Time, rows []DailyStat) []DailyStat {
 // DailyAssetByAddress groups paid actual_amount by (day, receive_address)
 // for the per-address stacked chart, zero-filling missing days.
 func DailyAssetByAddress(start, end time.Time) ([]AddressDailyStat, error) {
-	var rows []AddressDailyStat
+	rows, err := queryAssetByAddress(start, end, false)
-	err := dao.Mdb.Model(&mdb.Orders{}).
-		Select("DATE(created_at) AS day, receive_address AS address, SUM(actual_amount) AS actual_amount").
-		Where("status = ?", mdb.StatusPaySuccess).
-		Where("created_at >= ?", start).
-		Where("created_at <= ?", end).
-		Group("DATE(created_at), receive_address").
-		Order("day ASC").
-		Scan(&rows).Error
 	if err != nil {
 		return nil, err
 	}
@@ -140,21 +157,33 @@ func DailyAssetByAddress(start, end time.Time) ([]AddressDailyStat, error) {
 // HourlyAssetByAddress groups paid actual_amount by (hour, receive_address)
 // for the per-address stacked chart, zero-filling missing hours.
 func HourlyAssetByAddress(start, end time.Time) ([]AddressDailyStat, error) {
-	var rows []AddressDailyStat
+	rows, err := queryAssetByAddress(start, end, true)
-	err := dao.Mdb.Model(&mdb.Orders{}).
-		Select("strftime('%Y-%m-%d %H:00', created_at) AS day, receive_address AS address, SUM(actual_amount) AS actual_amount").
-		Where("status = ?", mdb.StatusPaySuccess).
-		Where("created_at >= ?", start).
-		Where("created_at <= ?", end).
-		Group("strftime('%Y-%m-%d %H:00', created_at), receive_address").
-		Order("day ASC").
-		Scan(&rows).Error
 	if err != nil {
 		return nil, err
 	}
 	return fillAddressHourlyStats(start, end, rows), nil
 }
 
+func queryAssetByAddress(start, end time.Time, hourly bool) ([]AddressDailyStat, error) {
+	var rows []AddressDailyStat
+	bucket, err := statsBucketExpr("created_at", hourly)
+	if err != nil {
+		return nil, err
+	}
+	err = dao.Mdb.Model(&mdb.Orders{}).
+		Select(fmt.Sprintf(`%s AS day,
+            receive_address AS address,
+            SUM(actual_amount) AS actual_amount`, bucket)).
+		Where("status = ?", mdb.StatusPaySuccess).
+		Where("created_at >= ?", start).
+		Where("created_at <= ?", end).
+		Group(bucket).
+		Group("receive_address").
+		Order("day ASC, address ASC").
+		Scan(&rows).Error
+	return rows, err
+}
+
 // fillAddressDailyStats zero-fills missing day×address combinations.
 // All addresses that appear in rows are represented for every day in range.
 func fillAddressDailyStats(start, end time.Time, rows []AddressDailyStat) []AddressDailyStat {

src/model/data/order_data_test.go

@@ -1,6 +1,7 @@
 package data
 
 import (
+	"errors"
 	"strings"
 	"testing"
 	"time"
@@ -41,6 +42,101 @@ func TestEvmTransactionLockAddressIsCaseInsensitive(t *testing.T) {
 	}
 }
 
+func TestStatsBucketExprForDialect(t *testing.T) {
+	tests := []struct {
+		name    string
+		dialect string
+		hourly  bool
+		want    string
+	}{
+		{
+			name:    "sqlite daily",
+			dialect: "sqlite",
+			want:    "substr(created_at, 1, 10)",
+		},
+		{
+			name:    "sqlite hourly",
+			dialect: "sqlite",
+			hourly:  true,
+			want:    "replace(substr(created_at, 1, 13), 'T', ' ') || ':00'",
+		},
+		{
+			name:    "postgres daily",
+			dialect: "postgres",
+			want:    "TO_CHAR(created_at, 'YYYY-MM-DD')",
+		},
+		{
+			name:    "postgres hourly",
+			dialect: "postgres",
+			hourly:  true,
+			want:    "TO_CHAR(created_at, 'YYYY-MM-DD HH24:00')",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := statsBucketExprForDialect(tt.dialect, "created_at", tt.hourly)
+			if err != nil {
+				t.Fatalf("statsBucketExprForDialect error: %v", err)
+			}
+			if got != tt.want {
+				t.Fatalf("bucket expr = %q, want %q", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestStatsBucketExprRejectsUnsupportedDialect(t *testing.T) {
+	if _, err := statsBucketExprForDialect("mysql", "created_at", false); err == nil {
+		t.Fatal("expected unsupported mysql dialect error")
+	}
+}
+
+func TestTransactionLockPrecisionPreventsEquivalentAmountsOnly(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	if err := SetSetting(mdb.SettingGroupSystem, mdb.SettingKeyAmountPrecision, "2", mdb.SettingTypeInt); err != nil {
+		t.Fatalf("set precision 2: %v", err)
+	}
+	if err := LockTransaction(mdb.NetworkTron, "TPrecisionAddress001", "USDT", "trade-old", 1.23, time.Hour); err != nil {
+		t.Fatalf("lock old transaction: %v", err)
+	}
+
+	if err := SetSetting(mdb.SettingGroupSystem, mdb.SettingKeyAmountPrecision, "4", mdb.SettingTypeInt); err != nil {
+		t.Fatalf("set precision 4: %v", err)
+	}
+	if err := LockTransaction(mdb.NetworkTron, "TPrecisionAddress001", "USDT", "trade-equivalent", 1.2300, time.Hour); !errors.Is(err, ErrTransactionLocked) {
+		t.Fatalf("equivalent lock error = %v, want %v", err, ErrTransactionLocked)
+	}
+	if err := LockTransaction(mdb.NetworkTron, "TPrecisionAddress001", "USDT", "trade-new", 1.2301, time.Hour); err != nil {
+		t.Fatalf("distinct precision lock: %v", err)
+	}
+}
+
+func TestTransactionLockLookupUsesStoredPrecision(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	if err := SetSetting(mdb.SettingGroupSystem, mdb.SettingKeyAmountPrecision, "4", mdb.SettingTypeInt); err != nil {
+		t.Fatalf("set precision 4: %v", err)
+	}
+	if err := LockTransaction(mdb.NetworkTron, "TPrecisionAddress002", "USDT", "trade-precise", 1.2345, time.Hour); err != nil {
+		t.Fatalf("lock precise transaction: %v", err)
+	}
+	if err := SetSetting(mdb.SettingGroupSystem, mdb.SettingKeyAmountPrecision, "2", mdb.SettingTypeInt); err != nil {
+		t.Fatalf("set precision 2: %v", err)
+	}
+
+	gotTradeID, err := GetTradeIdByWalletAddressAndAmountAndToken(mdb.NetworkTron, "TPrecisionAddress002", "USDT", 1.2345)
+	if err != nil {
+		t.Fatalf("lookup transaction lock: %v", err)
+	}
+	if gotTradeID != "trade-precise" {
+		t.Fatalf("trade id = %q, want trade-precise", gotTradeID)
+	}
+}
+
 func TestNonEvmTransactionLockAddressRemainsCaseSensitive(t *testing.T) {
 	cleanup := testutil.SetupTestDatabases(t)
 	defer cleanup()

src/model/data/provider_order_data.go

@@ -0,0 +1,76 @@
+package data
+
+import (
+	"github.com/GMWalletApp/epusdt/model/dao"
+	"github.com/GMWalletApp/epusdt/model/mdb"
+	"gorm.io/gorm"
+)
+
+func GetProviderOrderByTradeIDAndProvider(tradeID string, provider string) (*mdb.ProviderOrder, error) {
+	row := new(mdb.ProviderOrder)
+	err := dao.Mdb.Model(row).
+		Where("trade_id = ?", tradeID).
+		Where("provider = ?", provider).
+		Limit(1).
+		Find(row).Error
+	return row, err
+}
+
+func CreateProviderOrderWithTransaction(tx *gorm.DB, row *mdb.ProviderOrder) error {
+	return tx.Model(row).Create(row).Error
+}
+
+func UpdateProviderOrderCreated(tradeID string, provider string, providerOrderID string, payURL string) error {
+	return dao.Mdb.Model(&mdb.ProviderOrder{}).
+		Where("trade_id = ?", tradeID).
+		Where("provider = ?", provider).
+		Updates(map[string]interface{}{
+			"provider_order_id": providerOrderID,
+			"pay_url":           payURL,
+			"status":            mdb.ProviderOrderStatusPending,
+		}).Error
+}
+
+func MarkProviderOrderFailed(tradeID string, provider string) error {
+	return dao.Mdb.Model(&mdb.ProviderOrder{}).
+		Where("trade_id = ?", tradeID).
+		Where("provider = ?", provider).
+		Update("status", mdb.ProviderOrderStatusFailed).Error
+}
+
+func SaveProviderOrderNotify(tradeID string, provider string, notifyRaw string) error {
+	return dao.Mdb.Model(&mdb.ProviderOrder{}).
+		Where("trade_id = ?", tradeID).
+		Where("provider = ?", provider).
+		Update("notify_raw", notifyRaw).Error
+}
+
+func MarkProviderOrderPaid(tradeID string, provider string, notifyRaw string) error {
+	return dao.Mdb.Model(&mdb.ProviderOrder{}).
+		Where("trade_id = ?", tradeID).
+		Where("provider = ?", provider).
+		Updates(map[string]interface{}{
+			"status":     mdb.ProviderOrderStatusPaid,
+			"notify_raw": notifyRaw,
+		}).Error
+}
+
+func MarkProviderOrderExpired(tradeID string, provider string) error {
+	return dao.Mdb.Model(&mdb.ProviderOrder{}).
+		Where("trade_id = ?", tradeID).
+		Where("provider = ?", provider).
+		Where("status IN ?", []string{mdb.ProviderOrderStatusCreating, mdb.ProviderOrderStatusPending}).
+		Update("status", mdb.ProviderOrderStatusExpired).Error
+}
+
+func GetSubOrderByTokenPayProvider(parentTradeID string, token string, payProvider string) (*mdb.Orders, error) {
+	order := new(mdb.Orders)
+	err := dao.Mdb.Model(order).
+		Where("parent_trade_id = ?", parentTradeID).
+		Where("token = ?", token).
+		Where("pay_provider = ?", payProvider).
+		Where("status = ?", mdb.StatusWaitPay).
+		Limit(1).
+		Find(order).Error
+	return order, err
+}

src/model/data/rpc_node_data.go

@@ -1,14 +1,44 @@
 package data
 
 import (
+	"fmt"
 	"math/rand"
+	"net/url"
+	"sort"
 	"strings"
+	"sync"
+	"time"
 
 	"github.com/GMWalletApp/epusdt/model/dao"
 	"github.com/GMWalletApp/epusdt/model/mdb"
 	"github.com/dromara/carbon/v2"
 )
 
+const (
+	RpcFailoverThreshold = 3
+	RpcFailoverCooldown  = 60 * time.Second
+)
+
+var gRpcFailover = struct {
+	sync.Mutex
+	failures      map[uint64]int
+	cooldownUntil map[uint64]time.Time
+}{
+	failures:      make(map[uint64]int),
+	cooldownUntil: make(map[uint64]time.Time),
+}
+
+func NormalizeRpcNodePurpose(purpose string) string {
+	switch strings.ToLower(strings.TrimSpace(purpose)) {
+	case mdb.RpcNodePurposeManualVerify:
+		return mdb.RpcNodePurposeManualVerify
+	case mdb.RpcNodePurposeBoth:
+		return mdb.RpcNodePurposeBoth
+	default:
+		return mdb.RpcNodePurposeGeneral
+	}
+}
+
 // ListRpcNodes returns rows optionally filtered by network.
 func ListRpcNodes(network string) ([]mdb.RpcNode, error) {
 	var rows []mdb.RpcNode
@@ -20,6 +50,84 @@ func ListRpcNodes(network string) ([]mdb.RpcNode, error) {
 	return rows, err
 }
 
+// ListRpcNodesForHealth returns nodes that should be probed by the periodic
+// health job. Manual verification nodes are intentionally excluded because
+// they may be paid/high-limit endpoints that should only be used on demand.
+func ListRpcNodesForHealth() ([]mdb.RpcNode, error) {
+	var rows []mdb.RpcNode
+	err := dao.Mdb.Model(&mdb.RpcNode{}).
+		Where("(purpose IN ? OR purpose = '' OR purpose IS NULL)", []string{mdb.RpcNodePurposeGeneral, mdb.RpcNodePurposeBoth}).
+		Order("id ASC").
+		Find(&rows).Error
+	return rows, err
+}
+
+// ListGeneralRpcCandidates returns enabled non-manual nodes for ordinary
+// scanners/listeners. Down nodes are skipped; ok nodes are ordered before
+// unknown/bootstrap nodes.
+func ListGeneralRpcCandidates(network, nodeType string) ([]mdb.RpcNode, error) {
+	var rows []mdb.RpcNode
+	err := dao.Mdb.Model(&mdb.RpcNode{}).
+		Where("network = ?", strings.ToLower(strings.TrimSpace(network))).
+		Where("type = ?", strings.ToLower(strings.TrimSpace(nodeType))).
+		Where("enabled = ?", true).
+		Where("(purpose IN ? OR purpose = '' OR purpose IS NULL)", []string{mdb.RpcNodePurposeGeneral, mdb.RpcNodePurposeBoth}).
+		Where("(status IN ? OR status = '' OR status IS NULL)", []string{mdb.RpcNodeStatusOk, mdb.RpcNodeStatusUnknown}).
+		Find(&rows).Error
+	if err != nil {
+		return nil, err
+	}
+
+	buckets := make([][]mdb.RpcNode, 2)
+	for _, row := range rows {
+		row.Purpose = NormalizeRpcNodePurpose(row.Purpose)
+		if row.Status == mdb.RpcNodeStatusOk {
+			buckets[0] = append(buckets[0], row)
+		} else {
+			buckets[1] = append(buckets[1], row)
+		}
+	}
+
+	out := make([]mdb.RpcNode, 0, len(rows))
+	for _, bucket := range buckets {
+		sortRpcNodes(bucket)
+		out = append(out, bucket...)
+	}
+	return out, nil
+}
+
+func SelectGeneralRpcNode(network, nodeType string, excludeIDs ...uint64) (*mdb.RpcNode, error) {
+	rows, err := ListGeneralRpcCandidates(network, nodeType)
+	if err != nil {
+		return nil, err
+	}
+	if len(rows) == 0 {
+		return nil, nil
+	}
+
+	excluded := make(map[uint64]struct{}, len(excludeIDs))
+	for _, id := range excludeIDs {
+		if id > 0 {
+			excluded[id] = struct{}{}
+		}
+	}
+	for i := range rows {
+		if _, ok := excluded[rows[i].ID]; ok {
+			continue
+		}
+		if IsRpcNodeCoolingDown(rows[i].ID) {
+			continue
+		}
+		return &rows[i], nil
+	}
+	if len(excluded) == 0 {
+		for i := range rows {
+			return &rows[i], nil
+		}
+	}
+	return nil, nil
+}
+
 // GetRpcNodeByID fetches one row.
 func GetRpcNodeByID(id uint64) (*mdb.RpcNode, error) {
 	row := new(mdb.RpcNode)
@@ -29,6 +137,7 @@ func GetRpcNodeByID(id uint64) (*mdb.RpcNode, error) {
 
 // CreateRpcNode inserts a row.
 func CreateRpcNode(row *mdb.RpcNode) error {
+	row.Purpose = NormalizeRpcNodePurpose(row.Purpose)
 	return dao.Mdb.Create(row).Error
 }
 
@@ -37,6 +146,9 @@ func UpdateRpcNodeFields(id uint64, fields map[string]interface{}) error {
 	if len(fields) == 0 {
 		return nil
 	}
+	if purpose, ok := fields["purpose"].(string); ok {
+		fields["purpose"] = NormalizeRpcNodePurpose(purpose)
+	}
 	return dao.Mdb.Model(&mdb.RpcNode{}).Where("id = ?", id).Updates(fields).Error
 }
 
@@ -48,13 +160,15 @@ func DeleteRpcNodeByID(id uint64) error {
 // SelectRpcNode picks a healthy RPC endpoint for a (network, type) pair.
 // Strategy: weighted random among rows where enabled=true AND status=ok.
 // Falls back to enabled rows with status=unknown when no health check has
-// run yet. Explicitly down rows are not selected.
+// run yet. Explicitly down rows are not selected. Manual verification nodes
+// are excluded so paid/manual-only RPCs are never used by scanners/listeners.
 func SelectRpcNode(network, nodeType string) (*mdb.RpcNode, error) {
 	var rows []mdb.RpcNode
 	err := dao.Mdb.Model(&mdb.RpcNode{}).
 		Where("network = ?", strings.ToLower(network)).
 		Where("type = ?", strings.ToLower(nodeType)).
 		Where("enabled = ?", true).
+		Where("(purpose IN ? OR purpose = '' OR purpose IS NULL)", []string{mdb.RpcNodePurposeGeneral, mdb.RpcNodePurposeBoth}).
 		Find(&rows).Error
 	if err != nil {
 		return nil, err
@@ -82,6 +196,144 @@ func SelectRpcNode(network, nodeType string) (*mdb.RpcNode, error) {
 	return pickWeighted(candidates), nil
 }
 
+// ListManualPaymentRpcCandidates returns enabled RPC nodes for manual payment
+// verification. Ordinary RPCs are tried first to avoid paid endpoint usage;
+// manual_verify nodes are used only as a fallback.
+func ListManualPaymentRpcCandidates(network, nodeType string) ([]mdb.RpcNode, error) {
+	var rows []mdb.RpcNode
+	err := dao.Mdb.Model(&mdb.RpcNode{}).
+		Where("network = ?", strings.ToLower(strings.TrimSpace(network))).
+		Where("type = ?", strings.ToLower(strings.TrimSpace(nodeType))).
+		Where("enabled = ?", true).
+		Where("(status IN ? OR status = '' OR status IS NULL)", []string{mdb.RpcNodeStatusOk, mdb.RpcNodeStatusUnknown}).
+		Find(&rows).Error
+	if err != nil {
+		return nil, err
+	}
+	if len(rows) == 0 {
+		return nil, nil
+	}
+
+	buckets := make([][]mdb.RpcNode, 4)
+	for _, row := range rows {
+		row.Purpose = NormalizeRpcNodePurpose(row.Purpose)
+		switch row.Purpose {
+		case mdb.RpcNodePurposeGeneral, mdb.RpcNodePurposeBoth:
+			if row.Status == mdb.RpcNodeStatusOk {
+				buckets[0] = append(buckets[0], row)
+			} else {
+				buckets[1] = append(buckets[1], row)
+			}
+		case mdb.RpcNodePurposeManualVerify:
+			if row.Status == mdb.RpcNodeStatusOk {
+				buckets[2] = append(buckets[2], row)
+			} else {
+				buckets[3] = append(buckets[3], row)
+			}
+		}
+	}
+
+	out := make([]mdb.RpcNode, 0, len(rows))
+	for _, bucket := range buckets {
+		sortRpcNodes(bucket)
+		out = append(out, bucket...)
+	}
+	return out, nil
+}
+
+func sortRpcNodes(rows []mdb.RpcNode) {
+	sort.SliceStable(rows, func(i, j int) bool {
+		if rows[i].Weight != rows[j].Weight {
+			return rows[i].Weight > rows[j].Weight
+		}
+		return rows[i].ID < rows[j].ID
+	})
+}
+
+func RecordRpcNodeSuccess(nodeID uint64) {
+	if nodeID == 0 {
+		return
+	}
+	gRpcFailover.Lock()
+	defer gRpcFailover.Unlock()
+	delete(gRpcFailover.failures, nodeID)
+	delete(gRpcFailover.cooldownUntil, nodeID)
+}
+
+func RecordRpcNodeFailure(nodeID uint64) (int, bool) {
+	if nodeID == 0 {
+		return 0, false
+	}
+	now := time.Now()
+	gRpcFailover.Lock()
+	defer gRpcFailover.Unlock()
+	if until, ok := gRpcFailover.cooldownUntil[nodeID]; ok {
+		if now.Before(until) {
+			return gRpcFailover.failures[nodeID], true
+		}
+		delete(gRpcFailover.cooldownUntil, nodeID)
+		delete(gRpcFailover.failures, nodeID)
+	}
+
+	gRpcFailover.failures[nodeID]++
+	failures := gRpcFailover.failures[nodeID]
+	if failures >= RpcFailoverThreshold {
+		gRpcFailover.failures[nodeID] = 0
+		gRpcFailover.cooldownUntil[nodeID] = now.Add(RpcFailoverCooldown)
+		return failures, true
+	}
+	return failures, false
+}
+
+func IsRpcNodeCoolingDown(nodeID uint64) bool {
+	if nodeID == 0 {
+		return false
+	}
+	now := time.Now()
+	gRpcFailover.Lock()
+	defer gRpcFailover.Unlock()
+	until, ok := gRpcFailover.cooldownUntil[nodeID]
+	if !ok {
+		return false
+	}
+	if now.Before(until) {
+		return true
+	}
+	delete(gRpcFailover.cooldownUntil, nodeID)
+	delete(gRpcFailover.failures, nodeID)
+	return false
+}
+
+func RpcNodeLogLabel(node mdb.RpcNode) string {
+	return fmt.Sprintf("id=%d network=%s type=%s endpoint=%s", node.ID, node.Network, node.Type, safeRpcEndpoint(node.Url))
+}
+
+func safeRpcEndpoint(raw string) string {
+	raw = strings.TrimSpace(raw)
+	if raw == "" {
+		return ""
+	}
+	parsed, err := url.Parse(raw)
+	if err == nil && parsed.Host != "" {
+		if parsed.Scheme != "" {
+			return parsed.Scheme + "://" + parsed.Host
+		}
+		return parsed.Host
+	}
+	cut := strings.IndexAny(raw, "/?")
+	if cut >= 0 {
+		return raw[:cut]
+	}
+	return raw
+}
+
+func ResetRpcFailoverForTest() {
+	gRpcFailover.Lock()
+	defer gRpcFailover.Unlock()
+	gRpcFailover.failures = make(map[uint64]int)
+	gRpcFailover.cooldownUntil = make(map[uint64]time.Time)
+}
+
 // pickWeighted chooses one row using the Weight column. Weights < 1 are
 // coerced to 1 so an admin-zeroed row still has a chance (use Enabled=false
 // to truly disable).

src/model/data/rpc_node_data_test.go

@@ -1,6 +1,7 @@
 package data
 
 import (
+	"strings"
 	"testing"
 
 	"github.com/GMWalletApp/epusdt/internal/testutil"
@@ -99,3 +100,306 @@ func TestSelectRpcNodeIgnoresDownRows(t *testing.T) {
 		t.Fatalf("SelectRpcNode() = %#v, want nil", got)
 	}
 }
+
+func TestSelectRpcNodeExcludesManualVerifyRows(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	if err := dao.Mdb.Create(&mdb.RpcNode{
+		Network: mdb.NetworkTron,
+		Url:     "https://manual.example.com",
+		Type:    mdb.RpcNodeTypeHttp,
+		Weight:  100,
+		Enabled: true,
+		Purpose: mdb.RpcNodePurposeManualVerify,
+		Status:  mdb.RpcNodeStatusOk,
+	}).Error; err != nil {
+		t.Fatalf("seed manual rpc_node: %v", err)
+	}
+	if err := dao.Mdb.Create(&mdb.RpcNode{
+		Network: mdb.NetworkTron,
+		Url:     "https://general.example.com",
+		Type:    mdb.RpcNodeTypeHttp,
+		Weight:  1,
+		Enabled: true,
+		Purpose: mdb.RpcNodePurposeGeneral,
+		Status:  mdb.RpcNodeStatusUnknown,
+	}).Error; err != nil {
+		t.Fatalf("seed general rpc_node: %v", err)
+	}
+
+	got, err := SelectRpcNode(mdb.NetworkTron, mdb.RpcNodeTypeHttp)
+	if err != nil {
+		t.Fatalf("SelectRpcNode(): %v", err)
+	}
+	if got == nil || got.Url != "https://general.example.com" {
+		t.Fatalf("SelectRpcNode() = %#v, want general row", got)
+	}
+}
+
+func TestSelectRpcNodePurposeFilterAppliesToAnyNodeType(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	const nodeType = "grpc"
+	if err := dao.Mdb.Create(&mdb.RpcNode{
+		Network: mdb.NetworkTron,
+		Url:     "grpc://manual.example.com",
+		Type:    nodeType,
+		Weight:  100,
+		Enabled: true,
+		Purpose: mdb.RpcNodePurposeManualVerify,
+		Status:  mdb.RpcNodeStatusOk,
+	}).Error; err != nil {
+		t.Fatalf("seed manual rpc_node: %v", err)
+	}
+	if err := dao.Mdb.Create(&mdb.RpcNode{
+		Network: mdb.NetworkTron,
+		Url:     "grpc://general.example.com",
+		Type:    nodeType,
+		Weight:  1,
+		Enabled: true,
+		Purpose: mdb.RpcNodePurposeGeneral,
+		Status:  mdb.RpcNodeStatusOk,
+	}).Error; err != nil {
+		t.Fatalf("seed general rpc_node: %v", err)
+	}
+
+	got, err := SelectRpcNode(mdb.NetworkTron, nodeType)
+	if err != nil {
+		t.Fatalf("SelectRpcNode(): %v", err)
+	}
+	if got == nil || got.Url != "grpc://general.example.com" {
+		t.Fatalf("SelectRpcNode() = %#v, want general grpc row", got)
+	}
+}
+
+func TestSelectRpcNodeManualVerifyOnlyReturnsNil(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	if err := dao.Mdb.Create(&mdb.RpcNode{
+		Network: mdb.NetworkTron,
+		Url:     "https://manual-only.example.com",
+		Type:    mdb.RpcNodeTypeHttp,
+		Weight:  1,
+		Enabled: true,
+		Purpose: mdb.RpcNodePurposeManualVerify,
+		Status:  mdb.RpcNodeStatusOk,
+	}).Error; err != nil {
+		t.Fatalf("seed manual rpc_node: %v", err)
+	}
+
+	got, err := SelectRpcNode(mdb.NetworkTron, mdb.RpcNodeTypeHttp)
+	if err != nil {
+		t.Fatalf("SelectRpcNode(): %v", err)
+	}
+	if got != nil {
+		t.Fatalf("SelectRpcNode() = %#v, want nil", got)
+	}
+}
+
+func TestListManualPaymentRpcCandidatesGeneralBeforeManualVerify(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	rows := []mdb.RpcNode{
+		{Network: mdb.NetworkTron, Url: "https://manual-ok.example.com", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeManualVerify, Status: mdb.RpcNodeStatusOk},
+		{Network: mdb.NetworkTron, Url: "https://general-unknown.example.com", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusUnknown},
+		{Network: mdb.NetworkTron, Url: "https://general-ok.example.com", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+		{Network: mdb.NetworkTron, Url: "https://manual-unknown.example.com", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeManualVerify, Status: mdb.RpcNodeStatusUnknown},
+		{Network: mdb.NetworkTron, Url: "https://down.example.com", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusDown},
+	}
+	if err := dao.Mdb.Create(&rows).Error; err != nil {
+		t.Fatalf("seed rpc_nodes: %v", err)
+	}
+
+	got, err := ListManualPaymentRpcCandidates(mdb.NetworkTron, mdb.RpcNodeTypeHttp)
+	if err != nil {
+		t.Fatalf("ListManualPaymentRpcCandidates(): %v", err)
+	}
+	var urls []string
+	for _, row := range got {
+		urls = append(urls, row.Url)
+	}
+	want := []string{
+		"https://general-ok.example.com",
+		"https://general-unknown.example.com",
+		"https://manual-ok.example.com",
+		"https://manual-unknown.example.com",
+	}
+	if len(urls) != len(want) {
+		t.Fatalf("candidate urls = %#v, want %#v", urls, want)
+	}
+	for i := range want {
+		if urls[i] != want[i] {
+			t.Fatalf("candidate urls = %#v, want %#v", urls, want)
+		}
+	}
+}
+
+func TestListManualPaymentRpcCandidatesAllowsManualVerifyFallbackOnly(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	rows := []mdb.RpcNode{
+		{Network: mdb.NetworkTron, Url: "https://manual-ok.example.com", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeManualVerify, Status: mdb.RpcNodeStatusOk},
+		{Network: mdb.NetworkTron, Url: "https://manual-down.example.com", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeManualVerify, Status: mdb.RpcNodeStatusDown},
+	}
+	if err := dao.Mdb.Create(&rows).Error; err != nil {
+		t.Fatalf("seed rpc_nodes: %v", err)
+	}
+
+	got, err := ListManualPaymentRpcCandidates(mdb.NetworkTron, mdb.RpcNodeTypeHttp)
+	if err != nil {
+		t.Fatalf("ListManualPaymentRpcCandidates(): %v", err)
+	}
+	if len(got) != 1 || got[0].Url != "https://manual-ok.example.com" {
+		t.Fatalf("candidate rows = %#v, want only manual ok fallback", got)
+	}
+}
+
+func TestSelectGeneralRpcNodeSkipsCoolingNode(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+	ResetRpcFailoverForTest()
+	t.Cleanup(ResetRpcFailoverForTest)
+
+	rows := []mdb.RpcNode{
+		{Network: mdb.NetworkTron, Url: "https://primary.example.com", Type: mdb.RpcNodeTypeHttp, Weight: 100, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+		{Network: mdb.NetworkTron, Url: "https://backup.example.com", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+	}
+	if err := dao.Mdb.Create(&rows).Error; err != nil {
+		t.Fatalf("seed rpc_nodes: %v", err)
+	}
+
+	first, err := SelectGeneralRpcNode(mdb.NetworkTron, mdb.RpcNodeTypeHttp)
+	if err != nil {
+		t.Fatalf("SelectGeneralRpcNode(): %v", err)
+	}
+	if first == nil || first.Url != "https://primary.example.com" {
+		t.Fatalf("first node = %#v, want primary", first)
+	}
+
+	for i := 0; i < RpcFailoverThreshold; i++ {
+		RecordRpcNodeFailure(first.ID)
+	}
+
+	got, err := SelectGeneralRpcNode(mdb.NetworkTron, mdb.RpcNodeTypeHttp)
+	if err != nil {
+		t.Fatalf("SelectGeneralRpcNode(): %v", err)
+	}
+	if got == nil || got.Url != "https://backup.example.com" {
+		t.Fatalf("node after cooldown = %#v, want backup", got)
+	}
+}
+
+func TestSelectGeneralRpcNodeFallsBackWhenAllNodesCooling(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+	ResetRpcFailoverForTest()
+	t.Cleanup(ResetRpcFailoverForTest)
+
+	rows := []mdb.RpcNode{
+		{Network: mdb.NetworkTron, Url: "https://primary.example.com", Type: mdb.RpcNodeTypeHttp, Weight: 100, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+		{Network: mdb.NetworkTron, Url: "https://backup.example.com", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+	}
+	if err := dao.Mdb.Create(&rows).Error; err != nil {
+		t.Fatalf("seed rpc_nodes: %v", err)
+	}
+	for i := range rows {
+		for n := 0; n < RpcFailoverThreshold; n++ {
+			RecordRpcNodeFailure(rows[i].ID)
+		}
+	}
+
+	got, err := SelectGeneralRpcNode(mdb.NetworkTron, mdb.RpcNodeTypeHttp)
+	if err != nil {
+		t.Fatalf("SelectGeneralRpcNode(): %v", err)
+	}
+	if got == nil || got.Url != "https://primary.example.com" {
+		t.Fatalf("SelectGeneralRpcNode() = %#v, want primary when every node is cooling", got)
+	}
+}
+
+func TestSelectGeneralRpcNodeReturnsNilWhenExcludedAlternatesCooling(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+	ResetRpcFailoverForTest()
+	t.Cleanup(ResetRpcFailoverForTest)
+
+	rows := []mdb.RpcNode{
+		{Network: mdb.NetworkTron, Url: "https://primary.example.com", Type: mdb.RpcNodeTypeHttp, Weight: 100, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+		{Network: mdb.NetworkTron, Url: "https://backup.example.com", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+	}
+	if err := dao.Mdb.Create(&rows).Error; err != nil {
+		t.Fatalf("seed rpc_nodes: %v", err)
+	}
+	for i := 0; i < RpcFailoverThreshold; i++ {
+		RecordRpcNodeFailure(rows[1].ID)
+	}
+
+	got, err := SelectGeneralRpcNode(mdb.NetworkTron, mdb.RpcNodeTypeHttp, rows[0].ID)
+	if err != nil {
+		t.Fatalf("SelectGeneralRpcNode(): %v", err)
+	}
+	if got != nil {
+		t.Fatalf("SelectGeneralRpcNode() = %#v, want nil when only alternate is cooling", got)
+	}
+}
+
+func TestRecordRpcNodeSuccessClearsCooldown(t *testing.T) {
+	ResetRpcFailoverForTest()
+	t.Cleanup(ResetRpcFailoverForTest)
+
+	const nodeID uint64 = 42
+	for i := 0; i < RpcFailoverThreshold; i++ {
+		RecordRpcNodeFailure(nodeID)
+	}
+	if !IsRpcNodeCoolingDown(nodeID) {
+		t.Fatal("node should be cooling after threshold")
+	}
+	RecordRpcNodeSuccess(nodeID)
+	if IsRpcNodeCoolingDown(nodeID) {
+		t.Fatal("node should not be cooling after success")
+	}
+	failures, cooling := RecordRpcNodeFailure(nodeID)
+	if cooling || failures != 1 {
+		t.Fatalf("failure state after success = failures=%d cooling=%v, want failures=1 cooling=false", failures, cooling)
+	}
+}
+
+func TestRpcNodeLogLabelHidesPathAndQuery(t *testing.T) {
+	label := RpcNodeLogLabel(mdb.RpcNode{
+		BaseModel: mdb.BaseModel{ID: 7},
+		Network:   mdb.NetworkEthereum,
+		Type:      mdb.RpcNodeTypeWs,
+		Url:       "wss://rpc.example.com/v3/secret-key?token=secret",
+	})
+	if strings.Contains(label, "secret") || strings.Contains(label, "/v3/") {
+		t.Fatalf("RpcNodeLogLabel() leaked sensitive URL parts: %s", label)
+	}
+	if !strings.Contains(label, "wss://rpc.example.com") {
+		t.Fatalf("RpcNodeLogLabel() = %s, want host", label)
+	}
+}
+
+func TestListRpcNodesForHealthExcludesManualVerify(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	rows := []mdb.RpcNode{
+		{Network: mdb.NetworkTron, Url: "https://general.example.com", Type: mdb.RpcNodeTypeHttp, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusUnknown},
+		{Network: mdb.NetworkTron, Url: "https://manual.example.com", Type: mdb.RpcNodeTypeHttp, Enabled: true, Purpose: mdb.RpcNodePurposeManualVerify, Status: mdb.RpcNodeStatusUnknown},
+	}
+	if err := dao.Mdb.Create(&rows).Error; err != nil {
+		t.Fatalf("seed rpc_nodes: %v", err)
+	}
+	got, err := ListRpcNodesForHealth()
+	if err != nil {
+		t.Fatalf("ListRpcNodesForHealth(): %v", err)
+	}
+	if len(got) != 1 || got[0].Url != "https://general.example.com" {
+		t.Fatalf("ListRpcNodesForHealth() = %#v, want only general row", got)
+	}
+}

src/model/data/settings_data.go

@@ -5,6 +5,7 @@ import (
 	"strings"
 	"sync"
 
+	"github.com/GMWalletApp/epusdt/config"
 	"github.com/GMWalletApp/epusdt/model/dao"
 	"github.com/GMWalletApp/epusdt/model/mdb"
 	"gorm.io/gorm/clause"
@@ -118,15 +119,36 @@ func GetSettingBool(key string, fallback bool) bool {
 	return b
 }
 
+const (
+	DefaultAmountPrecision = 2
+	MinAmountPrecision     = 2
+	MaxAmountPrecision     = 6
+)
+
+// NormalizeAmountPrecision clamps external precision values to the supported
+// range used by order creation and transaction matching.
+func NormalizeAmountPrecision(precision int) int {
+	if precision < MinAmountPrecision || precision > MaxAmountPrecision {
+		return DefaultAmountPrecision
+	}
+	return precision
+}
+
+func GetAmountPrecision() int {
+	return NormalizeAmountPrecision(GetSettingInt(mdb.SettingKeyAmountPrecision, DefaultAmountPrecision))
+}
+
 // SetSetting upserts a setting row and refreshes the cache entry.
 func SetSetting(group, key, value, valueType string) error {
 	if valueType == "" {
 		valueType = mdb.SettingTypeString
 	}
 	row := mdb.Setting{Group: group, Key: key, Value: value, Type: valueType}
+	updates := clause.AssignmentColumns([]string{"group", "value", "type", "updated_at"})
+	updates = append(updates, clause.Assignment{Column: clause.Column{Name: "deleted_at"}, Value: nil})
 	err := dao.Mdb.Clauses(clause.OnConflict{
 		Columns:   []clause.Column{{Name: "key"}},
-		DoUpdates: clause.AssignmentColumns([]string{"group", "value", "type", "updated_at"}),
+		DoUpdates: updates,
 	}).Create(&row).Error
 	if err != nil {
 		return err
@@ -157,6 +179,97 @@ var sensitiveSettingKeys = []string{
 	mdb.SettingKeyInitAdminPasswordChanged,
 }
 
+func getFirstNonEmptySetting(fallback string, keys ...string) string {
+	for _, key := range keys {
+		value := strings.TrimSpace(GetSettingString(key, ""))
+		if value != "" {
+			return value
+		}
+	}
+	return fallback
+}
+
+func GetBrandCashierName() string {
+	return getFirstNonEmptySetting("", mdb.SettingKeyBrandCheckoutName, mdb.SettingKeyBrandSiteName)
+}
+
+func GetBrandLogoURL() string {
+	return strings.TrimSpace(GetSettingString(mdb.SettingKeyBrandLogoUrl, ""))
+}
+
+func GetBrandWebsiteTitle() string {
+	return getFirstNonEmptySetting("", mdb.SettingKeyBrandSiteTitle, mdb.SettingKeyBrandPageTitle)
+}
+
+func GetBrandSupportURL() string {
+	return strings.TrimSpace(GetSettingString(mdb.SettingKeyBrandSupportUrl, ""))
+}
+
+func GetBrandBackgroundColor() string {
+	return strings.TrimSpace(GetSettingString(mdb.SettingKeyBrandBackgroundColor, ""))
+}
+
+func GetBrandBackgroundImageURL() string {
+	return strings.TrimSpace(GetSettingString(mdb.SettingKeyBrandBackgroundImageUrl, ""))
+}
+
+// OkPay settings helpers keep the provider-specific defaults in one place so
+// business logic does not need to repeat raw settings keys.
+func GetOkPayEnabled() bool {
+	return GetSettingBool(mdb.SettingKeyOkPayEnabled, false)
+}
+
+func GetOkPayShopID() string {
+	return strings.TrimSpace(GetSettingString(mdb.SettingKeyOkPayShopID, ""))
+}
+
+func GetOkPayShopToken() string {
+	return strings.TrimSpace(GetSettingString(mdb.SettingKeyOkPayShopToken, ""))
+}
+
+func GetOkPayAPIURL() string {
+	return strings.TrimSpace(GetSettingString(mdb.SettingKeyOkPayAPIURL, "https://api.okaypay.me/shop/"))
+}
+
+func GetOkPayCallbackURL() string {
+	if configured := strings.TrimSpace(GetSettingString(mdb.SettingKeyOkPayCallbackURL, "")); configured != "" {
+		return configured
+	}
+	appURI := strings.TrimSpace(config.GetAppUri())
+	if appURI == "" {
+		return ""
+	}
+	return strings.TrimRight(appURI, "/") + "/payments/okpay/v1/notify"
+}
+
+func GetOkPayReturnURL() string {
+	return strings.TrimSpace(GetSettingString(mdb.SettingKeyOkPayReturnURL, ""))
+}
+
+func GetOkPayTimeoutSeconds() int {
+	return GetSettingInt(mdb.SettingKeyOkPayTimeoutSeconds, 10)
+}
+
+func GetOkPayAllowTokens() []string {
+	raw := GetSettingString(mdb.SettingKeyOkPayAllowTokens, "USDT,TRX")
+	if strings.TrimSpace(raw) == "" {
+		return []string{"USDT", "TRX"}
+	}
+	parts := strings.Split(raw, ",")
+	out := make([]string, 0, len(parts))
+	for _, part := range parts {
+		token := strings.ToUpper(strings.TrimSpace(part))
+		if token == "" {
+			continue
+		}
+		out = append(out, token)
+	}
+	if len(out) == 0 {
+		return []string{"USDT", "TRX"}
+	}
+	return out
+}
+
 // ListSettingsByGroup returns all rows for a given group (empty group = all),
 // excluding any keys in sensitiveSettingKeys.
 func ListSettingsByGroup(group string) ([]mdb.Setting, error) {

src/model/mdb/orders_mdb.go

@@ -12,8 +12,21 @@ const (
 	PaymentTypeEpay = "Epay"
 )
 
+const (
+	// PaymentProviderOnChain means this concrete order record is settled by
+	// sending funds to a directly assigned wallet address on a supported chain.
+	PaymentProviderOnChain = "on_chain"
+	// PaymentProviderOkPay means this concrete order record is settled through
+	// the third-party OkayPay/OkPay hosted checkout flow.
+	//
+	// In the current design this is typically used by a switch-network-created
+	// child order, while the parent order keeps its original merchant-facing
+	// semantics and callback behavior.
+	PaymentProviderOkPay = "okpay"
+)
+
 type Orders struct {
-	TradeId            string  `gorm:"column:trade_id;uniqueIndex:orders_trade_id_uindex" json:"trade_id" example:"T2026041612345678"`
+	TradeId            string  `gorm:"column:trade_id;uniqueIndex:orders_trade_id_uindex" json:"trade_id" example:"3nQ9pL2xV7sK1mR8cT4yB_aZ"`
 	OrderId            string  `gorm:"column:order_id;uniqueIndex:orders_order_id_uindex" json:"order_id" example:"ORD20260416001"`
 	ParentTradeId      string  `gorm:"column:parent_trade_id;index:idx_orders_parent_trade_id;default:''" json:"parent_trade_id"`
 	BlockTransactionId string  `gorm:"index:orders_block_transaction_id_index;column:block_transaction_id" json:"block_transaction_id" example:"0xabc123..."`
@@ -33,7 +46,17 @@ type Orders struct {
 	CallBackConfirm int    `gorm:"column:callback_confirm;default:2" json:"callback_confirm" enums:"1,2" example:"2"`
 	IsSelected      bool   `gorm:"column:is_selected;default:false" json:"is_selected" example:"false"`
 	PaymentType     string `gorm:"column:payment_type" json:"payment_type" example:"Epay"`
-	ApiKeyID        uint64 `gorm:"column:api_key_id;default:0;index:orders_api_key_id_index" json:"api_key_id" example:"1"`
+	// PayProvider identifies how this specific order row is collected.
+	//
+	// Semantics:
+	//   - parent orders and regular chain child orders use on_chain
+	//   - third-party hosted checkout child orders use their provider name
+	//     (for example okpay)
+	//
+	// Existing rows default to on_chain for backward compatibility so upgrades
+	// can rely on AutoMigrate without rewriting old orders.
+	PayProvider string `gorm:"column:pay_provider;size:32;default:on_chain;index:orders_pay_provider_index" json:"pay_provider" example:"on_chain"`
+	ApiKeyID    uint64 `gorm:"column:api_key_id;default:0;index:orders_api_key_id_index" json:"api_key_id" example:"1"`
 	// PayBySubId holds the primary-key ID of the sub-order that settled this parent order.
 	// Zero when the parent order was paid directly (no sub-order involved).
 	PayBySubId uint64 `gorm:"column:pay_by_sub_id;default:0" json:"pay_by_sub_id" example:"0"`

src/model/mdb/provider_order.go

@@ -0,0 +1,48 @@
+package mdb
+
+const (
+	ProviderOrderStatusCreating = "creating"
+	ProviderOrderStatusPending  = "pending"
+	ProviderOrderStatusPaid     = "paid"
+	ProviderOrderStatusFailed   = "failed"
+	ProviderOrderStatusExpired  = "expired"
+)
+
+// ProviderOrder stores provider-specific checkout data for one internal order
+// row. For OkPay this is expected to bind to the concrete child order created
+// by switch-network, not to the parent merchant order.
+//
+// Binding rules:
+//   - trade_id always points to orders.trade_id
+//   - the bound orders row should use the same pay_provider value
+//   - provider identifies which downstream checkout created the provider row
+//   - provider_order_id is the provider's own order number (for OkPay this is
+//     the returned order_id from /payLink)
+//   - pay_url is the hosted payment URL returned by the provider
+//
+// The main orders table remains the source of truth for merchant-facing state,
+// while this table keeps provider-specific identifiers and callback payloads.
+type ProviderOrder struct {
+	TradeId string `gorm:"column:trade_id;size:32;not null;uniqueIndex:provider_orders_trade_id_provider_uindex,priority:1;index:provider_orders_trade_id_index" json:"trade_id" example:"3nQ9pL2xV7sK1mR8cT4yB_aZ"`
+	// Provider values should match the bound Orders.PayProvider value.
+	Provider string `gorm:"column:provider;size:32;not null;uniqueIndex:provider_orders_trade_id_provider_uindex,priority:2;index:provider_orders_provider_status_index,priority:1" json:"provider" example:"okpay"`
+	// ProviderOrderID is the downstream provider's own order identifier for the
+	// bound concrete order row.
+	ProviderOrderID string `gorm:"column:provider_order_id;size:128;not null;default:'';index:provider_orders_provider_order_id_index" json:"provider_order_id" example:"ac7b86615fdb137576ae35879f7ed844"`
+	// PayURL is the hosted checkout URL returned by the downstream provider for
+	// the bound concrete order row.
+	PayURL string `gorm:"column:pay_url;size:512;not null;default:''" json:"pay_url" example:"https://pay.example.com/checkout/abc123"`
+	// Amount/Coin mirror the exact payload submitted to the provider, which may
+	// be useful when validating callbacks and troubleshooting mismatches.
+	Amount float64 `gorm:"column:amount" json:"amount" example:"14.2857"`
+	Coin   string  `gorm:"column:coin;size:16;not null;default:''" json:"coin" example:"USDT"`
+	Status string  `gorm:"column:status;size:32;not null;default:pending;index:provider_orders_provider_status_index,priority:2" json:"status" example:"pending"`
+	// NotifyRaw stores the original provider callback payload for auditing and
+	// replay/debug use. It is provider-specific and intentionally opaque here.
+	NotifyRaw string `gorm:"column:notify_raw;type:text" json:"notify_raw"`
+	BaseModel
+}
+
+func (p *ProviderOrder) TableName() string {
+	return "provider_orders"
+}

src/model/mdb/rpc_node.go

@@ -13,19 +13,26 @@ const (
 	RpcNodeStatusDown    = "down"
 )
 
-// RpcNode records one RPC endpoint for a network. Clients select a node
+const (
-// by weight among rows where Enabled=true AND Status=ok. A periodic
+	RpcNodePurposeGeneral      = "general"
-// task/rpc_health_job writes Status/LastLatencyMs/LastCheckedAt.
+	RpcNodePurposeManualVerify = "manual_verify"
+	RpcNodePurposeBoth         = "both"
+)
+
+// RpcNode records one RPC endpoint for a network. Runtime selection filters by
+// Type, Status and Purpose so paid manual-verification nodes stay isolated.
 type RpcNode struct {
-	Network       string      `gorm:"column:network;size:32;index:rpc_nodes_network_status_index,priority:1" json:"network" example:"tron"`
+	Network string `gorm:"column:network;size:32;index:rpc_nodes_network_status_index,priority:1" json:"network" example:"tron"`
-	Url string `gorm:"column:url;size:512" json:"url" example:"https://api.trongrid.io"`
+	Url     string `gorm:"column:url;size:512" json:"url" example:"https://api.trongrid.io"`
 	// 连接类型 http=HTTP请求 ws=WebSocket长连接
-	Type string `gorm:"column:type;size:16" json:"type" enums:"http,ws" example:"http"`
+	Type    string `gorm:"column:type;size:16" json:"type" enums:"http,ws" example:"http"`
-	Weight        int         `gorm:"column:weight;default:1" json:"weight" example:"1"`
+	Weight  int    `gorm:"column:weight;default:1" json:"weight" example:"1"`
-	ApiKey        string      `gorm:"column:api_key;size:255" json:"api_key" example:"your-api-key"`
+	ApiKey  string `gorm:"column:api_key;size:255" json:"api_key" example:"your-api-key"`
-	Enabled bool `gorm:"column:enabled;default:true" json:"enabled" example:"true"`
+	Enabled bool   `gorm:"column:enabled;default:true" json:"enabled" example:"true"`
+	// 用途 general=通用 manual_verify=补单专用 both=通用+补单
+	Purpose string `gorm:"column:purpose;size:32;default:general;index:rpc_nodes_purpose_index" json:"purpose" enums:"general,manual_verify,both" example:"general"`
 	// 健康状态 unknown=未知 ok=正常 down=异常
-	Status string `gorm:"column:status;size:16;default:unknown;index:rpc_nodes_network_status_index,priority:2" json:"status" enums:"unknown,ok,down" example:"ok"`
+	Status        string      `gorm:"column:status;size:16;default:unknown;index:rpc_nodes_network_status_index,priority:2" json:"status" enums:"unknown,ok,down" example:"ok"`
 	LastLatencyMs int         `gorm:"column:last_latency_ms;default:-1" json:"last_latency_ms" example:"120"`
 	LastCheckedAt carbon.Time `gorm:"column:last_checked_at" json:"last_checked_at" example:"2026-04-16 12:00:00"`
 	BaseModel

src/model/mdb/settings.go

@@ -1,9 +1,10 @@
 package mdb
 
 // Setting stores non-credential runtime configuration as key/value pairs.
-// Groups: brand, rate, system, epay. Merchant credentials (pid + secret_key)
+// Groups: brand, rate, system, epay, okpay. Merchant credentials (pid +
-// live in the api_keys table; notification configs live in NotificationChannel.
+// secret_key) live in the api_keys table; notification configs live in
-// Default rows for the epay group are seeded on first startup (see
+// NotificationChannel.
+// Default rows for the epay/okpay groups are seeded on first startup (see
 // model/dao/mdb_table_init.go seedDefaultSettings). All other groups start
 // empty and fall back to hardcoded defaults until an admin sets them.
 // Only exception: system.jwt_secret is auto-generated on first startup.
@@ -12,6 +13,7 @@ const (
 	SettingGroupRate   = "rate"
 	SettingGroupSystem = "system"
 	SettingGroupEpay   = "epay"
+	SettingGroupOkPay  = "okpay"
 )
 
 const (
@@ -28,12 +30,18 @@ const (
 	SettingKeyInitAdminPasswordFetched = "system.init_admin_password_fetched"
 	SettingKeyInitAdminPasswordChanged = "system.init_admin_password_changed"
 	SettingKeyOrderExpiration          = "system.order_expiration_time"
+	SettingKeyAmountPrecision          = "system.amount_precision"
+	SettingKeyBrandCheckoutName        = "brand.checkout_name"
 	SettingKeyBrandSiteName            = "brand.site_name"
 	SettingKeyBrandLogoUrl             = "brand.logo_url"
+	SettingKeyBrandSiteTitle           = "brand.site_title"
 	SettingKeyBrandPageTitle           = "brand.page_title"
+	SettingKeyBrandSuccessCopy         = "brand.success_copy"
 	SettingKeyBrandPaySuccess          = "brand.pay_success_text"
 	SettingKeyBrandSupportUrl          = "brand.support_url"
-	SettingKeyRateForcedUsdt           = "rate.forced_usdt_rate"
+	SettingKeyBrandBackgroundColor     = "brand.background_color"
+	SettingKeyBrandBackgroundImageUrl  = "brand.background_image_url"
+	SettingKeyRateForcedRateList       = "rate.forced_rate_list"
 	SettingKeyRateAdjustPercent        = "rate.adjust_percent"
 	SettingKeyRateOkxC2cEnabled        = "rate.okx_c2c_enabled"
 	SettingKeyRateApiUrl               = "rate.api_url"
@@ -42,14 +50,24 @@ const (
 	SettingKeyEpayDefaultToken    = "epay.default_token"
 	SettingKeyEpayDefaultCurrency = "epay.default_currency"
 	SettingKeyEpayDefaultNetwork  = "epay.default_network"
+
+	// OkPay hosted-checkout settings.
+	SettingKeyOkPayEnabled        = "okpay.enabled"
+	SettingKeyOkPayShopID         = "okpay.shop_id"
+	SettingKeyOkPayShopToken      = "okpay.shop_token"
+	SettingKeyOkPayAPIURL         = "okpay.api_url"
+	SettingKeyOkPayCallbackURL    = "okpay.callback_url"
+	SettingKeyOkPayReturnURL      = "okpay.return_url"
+	SettingKeyOkPayTimeoutSeconds = "okpay.timeout_seconds"
+	SettingKeyOkPayAllowTokens    = "okpay.allow_tokens"
 )
 
 type Setting struct {
-	Group       string `gorm:"column:group;size:32;index:settings_group_index" json:"group" enums:"brand,rate,system" example:"rate"`
+	Group       string `gorm:"column:group;size:32;index:settings_group_index" json:"group" enums:"brand,rate,system,epay,okpay" example:"rate"`
-	Key         string `gorm:"column:key;uniqueIndex:settings_key_uindex;size:128" json:"key" example:"rate.forced_usdt_rate"`
+	Key         string `gorm:"column:key;uniqueIndex:settings_key_uindex;size:128" json:"key" example:"rate.forced_rate_list"`
-	Value       string `gorm:"column:value;type:text" json:"value" example:"7.2"`
+	Value       string `gorm:"column:value;type:text" json:"value" example:"{\"cny\":{\"usdt\":0.14635}}"`
-	Type        string `gorm:"column:type;size:16;default:string" json:"type" enums:"string,int,bool,json" example:"string"`
+	Type        string `gorm:"column:type;size:16;default:string" json:"type" enums:"string,int,bool,json" example:"json"`
-	Description string `gorm:"column:description;size:255" json:"description" example:"强制USDT汇率"`
+	Description string `gorm:"column:description;size:255" json:"description" example:"强制汇率列表"`
 	BaseModel
 }
 

src/model/mdb/transaction_lock_mdb.go

@@ -3,16 +3,17 @@ package mdb
 import "time"
 
 type TransactionLock struct {
-	ID           uint64    `gorm:"column:id;primaryKey;autoIncrement" json:"id"`
+	ID              uint64    `gorm:"column:id;primaryKey;autoIncrement" json:"id"`
-	Network      string    `gorm:"column:network;uniqueIndex:transaction_lock_network_address_token_amount_uindex,priority:1" json:"network"`
+	Network         string    `gorm:"column:network;uniqueIndex:transaction_lock_network_address_token_amount_uindex,priority:1" json:"network"`
-	Address      string    `gorm:"column:address;uniqueIndex:transaction_lock_network_address_token_amount_uindex,priority:2" json:"address"`
+	Address         string    `gorm:"column:address;uniqueIndex:transaction_lock_network_address_token_amount_uindex,priority:2" json:"address"`
-	Token        string    `gorm:"column:token;uniqueIndex:transaction_lock_network_address_token_amount_uindex,priority:3" json:"token"`
+	Token           string    `gorm:"column:token;uniqueIndex:transaction_lock_network_address_token_amount_uindex,priority:3" json:"token"`
-	AmountScaled int64     `gorm:"column:amount_scaled;uniqueIndex:transaction_lock_network_address_token_amount_uindex,priority:4" json:"amount_scaled"`
+	AmountScaled    int64     `gorm:"column:amount_scaled;uniqueIndex:transaction_lock_network_address_token_amount_uindex,priority:4" json:"amount_scaled"`
-	AmountText   string    `gorm:"column:amount_text" json:"amount_text"`
+	AmountText      string    `gorm:"column:amount_text" json:"amount_text"`
-	TradeId      string    `gorm:"column:trade_id;index:transaction_lock_trade_id_index" json:"trade_id"`
+	AmountPrecision int       `gorm:"column:amount_precision;default:2;uniqueIndex:transaction_lock_network_address_token_amount_uindex,priority:5" json:"amount_precision"`
-	ExpiresAt    time.Time `gorm:"column:expires_at;index:transaction_lock_expires_at_index" json:"expires_at"`
+	TradeId         string    `gorm:"column:trade_id;index:transaction_lock_trade_id_index" json:"trade_id"`
-	CreatedAt    time.Time `gorm:"column:created_at" json:"created_at"`
+	ExpiresAt       time.Time `gorm:"column:expires_at;index:transaction_lock_expires_at_index" json:"expires_at"`
-	UpdatedAt    time.Time `gorm:"column:updated_at" json:"updated_at"`
+	CreatedAt       time.Time `gorm:"column:created_at" json:"created_at"`
+	UpdatedAt       time.Time `gorm:"column:updated_at" json:"updated_at"`
 }
 
 func (t *TransactionLock) TableName() string {

src/model/mdb/wallet_address_mdb.go

@@ -9,7 +9,7 @@ const (
 	NetworkTron     = "tron"
 	NetworkSolana   = "solana"
 	NetworkEthereum = "ethereum"
-	NetworkBsc      = "bsc"
+	NetworkBsc      = "binance"
 	NetworkPolygon  = "polygon"
 	NetworkPlasma   = "plasma"
 )

src/model/request/order_request.go

@@ -39,11 +39,22 @@ type OrderProcessingRequest struct {
 	BlockTransactionId string
 }
 
+// ManualPaymentRequest 手动提交交易 hash 补单
+type ManualPaymentRequest struct {
+	BlockTransactionId string `json:"block_transaction_id" validate:"required" example:"0xabc123def456..."`
+}
+
+func (r ManualPaymentRequest) Translates() map[string]string {
+	return validate.MS{
+		"BlockTransactionId": "交易哈希",
+	}
+}
+
 // SwitchNetworkRequest 切换支付网络
 type SwitchNetworkRequest struct {
-	TradeId string `json:"trade_id" validate:"required" example:"T2026041612345678"`
+	TradeId string `json:"trade_id" validate:"required" example:"3nQ9pL2xV7sK1mR8cT4yB_aZ"`
 	Token   string `json:"token" validate:"required" example:"USDT"`
-	Network string `json:"network" validate:"required" example:"ethereum"`
+	Network string `json:"network" validate:"required" example:"okpay,tron,solana,ethereum"`
 }
 
 func (r SwitchNetworkRequest) Translates() map[string]string {

src/model/response/base.go

@@ -4,8 +4,11 @@ package response
 // Used for swagger documentation only — the actual response is built
 // by util/http.Resp.
 type ApiResponse struct {
-	StatusCode int         `json:"status_code" example:"200"`
+	// Stable errno used by the frontend for i18n. Success is 200; failures use codes from util/constant.Errno.
-	Message    string      `json:"message" example:"success"`
+	StatusCode int `json:"status_code" example:"200"`
-	Data       interface{} `json:"data"`
+	// Default server-side errno text. Frontend should prefer status_code for display translation.
-	RequestID  string      `json:"request_id" example:"req-123456"`
+	Message string      `json:"message" example:"success"`
+	Data    interface{} `json:"data"`
+	// Request id echoed from X-Request-ID when present.
+	RequestID string `json:"request_id" example:"req-123456"`
 }

src/model/response/order_response.go

@@ -2,41 +2,41 @@ package response
 
 // CreateTransactionResponse 创建订单成功返回
 type CreateTransactionResponse struct {
-	TradeId        string  `json:"trade_id" example:"T2026041612345678"`        //  epusdt订单号
+	TradeId        string  `json:"trade_id" example:"3nQ9pL2xV7sK1mR8cT4yB_aZ"`                                     //  epusdt订单号
-	OrderId        string  `json:"order_id" example:"ORD20260416001"`           //  客户交易id
+	OrderId        string  `json:"order_id" example:"ORD20260416001"`                                               //  客户交易id
-	Amount         float64 `json:"amount" example:"100.0000"`                   //  订单金额，保留4位小数
+	Amount         float64 `json:"amount" example:"100.0000"`                                                       //  订单金额，按 system.amount_precision 保留小数
-	Currency       string  `json:"currency" example:"CNY"`                      //  订单货币类型 CNY USD......
+	Currency       string  `json:"currency" example:"CNY"`                                                          //  订单货币类型 CNY USD......
-	ActualAmount   float64 `json:"actual_amount" example:"14.2857"`             //  订单实际需要支付的金额，保留4位小数
+	ActualAmount   float64 `json:"actual_amount" example:"14.2857"`                                                 //  订单实际需要支付的金额，按 system.amount_precision 保留小数
-	ReceiveAddress string  `json:"receive_address" example:"TTestTronAddress001"` //  收款钱包地址
+	ReceiveAddress string  `json:"receive_address" example:"TTestTronAddress001"`                                   //  收款钱包地址
-	Token          string  `json:"token" example:"USDT"`                        // 所属币种 TRX USDT......
+	Token          string  `json:"token" example:"USDT"`                                                            // 所属币种 TRX USDT......
-	ExpirationTime int64   `json:"expiration_time" example:"1713264600"`        // 过期时间 时间戳
+	ExpirationTime int64   `json:"expiration_time" example:"1713264600"`                                            // 过期时间 时间戳
-	PaymentUrl     string  `json:"payment_url" example:"https://pay.example.com/checkout/T2026041612345678"` // 收银台地址
+	PaymentUrl     string  `json:"payment_url" example:"https://pay.example.com/checkout/3nQ9pL2xV7sK1mR8cT4yB_aZ"` // 收银台地址
 }
 
 // OrderNotifyResponse 订单异步回调结构体
 type OrderNotifyResponse struct {
-	Pid                string  `json:"pid" example:"1000"`                               //  签名使用的商户 PID，商户据此查本地 secret 验签
+	Pid                string  `json:"pid" example:"1000"`                            //  签名使用的商户 PID，商户据此查本地 secret 验签
-	TradeId            string  `json:"trade_id" example:"T2026041612345678"`             //  epusdt订单号
+	TradeId            string  `json:"trade_id" example:"3nQ9pL2xV7sK1mR8cT4yB_aZ"`   //  epusdt订单号
-	OrderId            string  `json:"order_id" example:"ORD20260416001"`                //  客户交易id
+	OrderId            string  `json:"order_id" example:"ORD20260416001"`             //  客户交易id
-	Amount             float64 `json:"amount" example:"100.0000"`                        //  订单金额，保留4位小数
+	Amount             float64 `json:"amount" example:"100.0000"`                     //  订单金额，按 system.amount_precision 保留小数
-	ActualAmount       float64 `json:"actual_amount" example:"14.2857"`                  //  订单实际需要支付的金额，保留4位小数
+	ActualAmount       float64 `json:"actual_amount" example:"14.2857"`               //  订单实际需要支付的金额，按 system.amount_precision 保留小数
-	ReceiveAddress     string  `json:"receive_address" example:"TTestTronAddress001"`    //  收款钱包地址
+	ReceiveAddress     string  `json:"receive_address" example:"TTestTronAddress001"` //  收款钱包地址
-	Token              string  `json:"token" example:"USDT"`                             // 所属币种 TRX USDT......
+	Token              string  `json:"token" example:"USDT"`                          // 所属币种 TRX USDT......
-	BlockTransactionId string  `json:"block_transaction_id" example:"0xabc123..."`       // 区块id
+	BlockTransactionId string  `json:"block_transaction_id" example:"0xabc123..."`    // 区块id
-	Signature          string  `json:"signature" example:"a1b2c3d4e5f6..."`              // 签名 MD5(sorted_params + secret_key)
+	Signature          string  `json:"signature" example:"a1b2c3d4e5f6..."`           // 签名 MD5(sorted_params + secret_key)
 	//  订单状态 1=等待支付 2=支付成功 3=已过期
 	Status int `json:"status" enums:"1,2,3" example:"2"`
 }
 
 // OrderNotifyResponseEpay epay订单异步回调结构体
 type OrderNotifyResponseEpay struct {
-	PID         int    `json:"pid" example:"1001"`                   // 商户ID
+	PID         int    `json:"pid" example:"1001"`                          // 商户ID
-	TradeNo     string `json:"trade_no" example:"T2026041612345678"` // 平台订单号
+	TradeNo     string `json:"trade_no" example:"3nQ9pL2xV7sK1mR8cT4yB_aZ"` // 平台订单号
-	OutTradeNo  string `json:"out_trade_no" example:"ORD20260416001"` // 商户订单号
+	OutTradeNo  string `json:"out_trade_no" example:"ORD20260416001"`       // 商户订单号
-	Type        string `json:"type" example:"usdt"`                  // 订单类型
+	Type        string `json:"type" example:"usdt"`                         // 订单类型
-	Name        string `json:"name" example:"VIP月卡"`                 // 商品名称
+	Name        string `json:"name" example:"VIP月卡"`                        // 商品名称
-	Money       string `json:"money" example:"100.0000"`             // 订单金额，保留4位小数
+	Money       string `json:"money" example:"100.0000"`                    // 订单金额，保留4位小数
-	Sign        string `json:"sign" example:"a1b2c3d4..."`           // 签名
+	Sign        string `json:"sign" example:"a1b2c3d4..."`                  // 签名
-	SignType    string `json:"sign_type" example:"MD5"`              // 签名类型
+	SignType    string `json:"sign_type" example:"MD5"`                     // 签名类型
-	TradeStatus string `json:"trade_status" example:"TRADE_SUCCESS"` // 订单状态
+	TradeStatus string `json:"trade_status" example:"TRADE_SUCCESS"`        // 订单状态
 }

src/model/response/pay_response.go

@@ -1,21 +1,28 @@
 package response
 
 type CheckoutCounterResponse struct {
-	TradeId        string  `json:"trade_id" example:"T2026041612345678"`        //  epusdt订单号
+	TradeId        string  `json:"trade_id" example:"3nQ9pL2xV7sK1mR8cT4yB_aZ"`   //  epusdt订单号
-	Amount         float64 `json:"amount" example:"100.0000"`                   //  订单金额，保留4位小数 法币金额
+	Amount         float64 `json:"amount" example:"100.0000"`                     //  订单金额，按 system.amount_precision 保留小数 法币金额
-	ActualAmount   float64 `json:"actual_amount" example:"14.2857"`             //  订单实际需要支付的金额，保留4位小数 加密货币金额
+	ActualAmount   float64 `json:"actual_amount" example:"14.2857"`               //  订单实际需要支付的金额，按 system.amount_precision 保留小数 加密货币金额
-	Token          string  `json:"token" example:"USDT"`                        //  所属币种 TRX USDT......
+	Token          string  `json:"token" example:"USDT"`                          //  所属币种 TRX USDT......
-	Currency       string  `json:"currency" example:"CNY"`                      //  法币币种 CNY USD ...
+	Currency       string  `json:"currency" example:"CNY"`                        //  法币币种 CNY USD ...
 	ReceiveAddress string  `json:"receive_address" example:"TTestTronAddress001"` //  收款钱包地址
-	Network        string  `json:"network" example:"tron"`                      //  网络 TRON ETH ...
+	Network        string  `json:"network" example:"tron"`                        //  网络 TRON ETH ...
-	ExpirationTime int64   `json:"expiration_time" example:"1713264600"`        // 过期时间 时间戳
+	ExpirationTime int64   `json:"expiration_time" example:"1713264600"`          // 过期时间 时间戳
 	RedirectUrl    string  `json:"redirect_url" example:"https://example.com/success"`
-	CreatedAt      int64   `json:"created_at" example:"1713264000"` // 订单创建时间 时间戳
+	PaymentUrl     string  `json:"payment_url" example:"https://pay.example.com/checkout/3nQ9pL2xV7sK1mR8cT4yB_aZ"` // 支付链接；链上订单通常为本地收银台，OkPay 子订单为第三方 payLink
+	CreatedAt      int64   `json:"created_at" example:"1713264000"`                                                 // 订单创建时间 时间戳
 	IsSelected     bool    `json:"is_selected" example:"false"`
 }
 
 type CheckStatusResponse struct {
-	TradeId string `json:"trade_id" example:"T2026041612345678"` //  epusdt订单号
+	TradeId string `json:"trade_id" example:"3nQ9pL2xV7sK1mR8cT4yB_aZ"` //  epusdt订单号
 	// 订单状态 1=等待支付 2=支付成功 3=已过期
 	Status int `json:"status" enums:"1,2,3" example:"1"`
 }
+
+type ManualPaymentResponse struct {
+	TradeId            string `json:"trade_id" example:"3nQ9pL2xV7sK1mR8cT4yB_aZ"`      // epusdt订单号
+	Status             int    `json:"status" enums:"1,2,3" example:"2"`                 // 订单状态 1=等待支付 2=支付成功 3=已过期
+	BlockTransactionId string `json:"block_transaction_id" example:"0xabc123def456..."` // 已验证并入账的交易哈希
+}

src/model/response/support_response.go

@@ -1,10 +1,41 @@
 package response
 
 type NetworkTokenSupport struct {
-	Network string   `json:"network" example:"tron"`
+	Network     string   `json:"network" example:"tron"`
-	Tokens  []string `json:"tokens" example:"USDT,USDC"`
+	DisplayName string   `json:"display_name" example:"TRON"`
+	Tokens      []string `json:"tokens" example:"USDT,USDC"`
 }
 
-type SupportedAssetsResponse struct {
+type EpayPublicConfig struct {
-	Supports []NetworkTokenSupport `json:"supports"`
+	DefaultToken    string `json:"default_token" example:"usdt"`
+	DefaultCurrency string `json:"default_currency" example:"cny"`
+	DefaultNetwork  string `json:"default_network" example:"tron"`
+}
+
+type SitePublicConfig struct {
+	CashierName        string `json:"cashier_name" example:"Acme Cashier"`
+	LogoURL            string `json:"logo_url" example:"https://cdn.example.com/logo.png"`
+	WebsiteTitle       string `json:"website_title" example:"Acme Payments"`
+	SupportLink        string `json:"support_link" example:"https://example.com/support"`
+	BackgroundColor    string `json:"background_color" example:"#0f172a"`
+	BackgroundImageURL string `json:"background_image_url" example:"https://cdn.example.com/background.png"`
+}
+
+type OkPayPublicConfig struct {
+	Enabled        bool     `json:"enabled" example:"true"`
+	AllowTokens    []string `json:"allow_tokens" example:"USDT,TRX"`
+	ShopID         string   `json:"shop_id,omitempty" example:"okpay-shop-test"`
+	ShopToken      string   `json:"shop_token,omitempty" example:"secret-token"`
+	APIURL         string   `json:"api_url,omitempty" example:"https://api.okaypay.me/shop/"`
+	CallbackURL    string   `json:"callback_url,omitempty" example:"https://pay.example.com/payments/okpay/v1/notify"`
+	ReturnURL      string   `json:"return_url,omitempty" example:"https://pay.example.com/success"`
+	TimeoutSeconds int      `json:"timeout_seconds,omitempty" example:"10"`
+}
+
+type PublicConfigResponse struct {
+	SupportedAssets []NetworkTokenSupport `json:"supported_assets"`
+	Site            SitePublicConfig      `json:"site"`
+	Epay            EpayPublicConfig      `json:"epay"`
+	OkPay           OkPayPublicConfig     `json:"okpay"`
+	Version         string                `json:"version" example:"v1.0.1"`
 }

src/model/service/manual_payment_verify.go

@@ -0,0 +1,935 @@
+package service
+
+import (
+	"bytes"
+	"context"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"io"
+	"math/big"
+	"net/http"
+	"strings"
+	"sync"
+	"time"
+
+	tron "github.com/GMWalletApp/epusdt/crypto"
+	"github.com/GMWalletApp/epusdt/model/data"
+	"github.com/GMWalletApp/epusdt/model/mdb"
+	"github.com/GMWalletApp/epusdt/util/constant"
+	"github.com/GMWalletApp/epusdt/util/math"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/ethclient"
+	"github.com/shopspring/decimal"
+	"github.com/tidwall/gjson"
+)
+
+const manualVerifyRequestTimeout = 15 * time.Second
+
+var erc20TransferEventHash = common.HexToHash("0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef")
+
+var (
+	manualOrderPaymentValidatorMu sync.Mutex
+	manualOrderPaymentValidator   manualOrderPaymentValidatorFunc = validateManualOrderPaymentDefault
+)
+
+type manualOrderPaymentValidatorFunc func(*mdb.Orders, string) (string, error)
+
+// ValidateManualOrderPayment verifies that the supplied chain transaction
+// really settles the order before an admin manually marks it paid. It returns
+// the canonical transaction id that should be persisted for duplicate checks.
+func ValidateManualOrderPayment(order *mdb.Orders, blockTransactionID string) (string, error) {
+	manualOrderPaymentValidatorMu.Lock()
+	validator := manualOrderPaymentValidator
+	manualOrderPaymentValidatorMu.Unlock()
+	return validator(order, blockTransactionID)
+}
+
+// SetManualOrderPaymentValidatorForTest swaps the chain verifier in tests so
+// route/controller tests don't depend on public RPC availability.
+func SetManualOrderPaymentValidatorForTest(fn func(*mdb.Orders, string) (string, error)) func() {
+	manualOrderPaymentValidatorMu.Lock()
+	old := manualOrderPaymentValidator
+	if fn == nil {
+		manualOrderPaymentValidator = validateManualOrderPaymentDefault
+	} else {
+		manualOrderPaymentValidator = func(order *mdb.Orders, blockTransactionID string) (string, error) {
+			return fn(order, blockTransactionID)
+		}
+	}
+	manualOrderPaymentValidatorMu.Unlock()
+	return func() {
+		manualOrderPaymentValidatorMu.Lock()
+		manualOrderPaymentValidator = old
+		manualOrderPaymentValidatorMu.Unlock()
+	}
+}
+
+func validateManualOrderPaymentDefault(order *mdb.Orders, blockTransactionID string) (string, error) {
+	if order == nil || order.ID == 0 {
+		return "", fmt.Errorf("order not found")
+	}
+	txID := strings.TrimSpace(blockTransactionID)
+	if txID == "" {
+		return "", fmt.Errorf("block_transaction_id is required")
+	}
+
+	var canonicalTxID string
+	var err error
+	switch strings.ToLower(strings.TrimSpace(order.Network)) {
+	case mdb.NetworkTron:
+		canonicalTxID, err = validateManualTronPayment(order, txID)
+	case mdb.NetworkSolana:
+		canonicalTxID, err = validateManualSolanaPayment(order, txID)
+	case mdb.NetworkEthereum, mdb.NetworkBsc, mdb.NetworkPolygon, mdb.NetworkPlasma:
+		canonicalTxID, err = validateManualEvmPayment(order, txID)
+	default:
+		return "", fmt.Errorf("unsupported manual payment verification network: %s", order.Network)
+	}
+	if err != nil {
+		return "", err
+	}
+	if err = ensureManualBlockTransactionUnused(order, canonicalTxID); err != nil {
+		return "", err
+	}
+	return canonicalTxID, nil
+}
+
+func ensureManualBlockTransactionUnused(order *mdb.Orders, canonicalTxID string) error {
+	candidates := equivalentManualBlockTransactionIDs(order.Network, canonicalTxID)
+	var existing *mdb.Orders
+	var err error
+	if manualBlockTransactionIDIsHex(order.Network) {
+		existing, err = data.GetOrderByBlockTransactionIDsCaseInsensitive(candidates)
+	} else {
+		existing, err = data.GetOrderByBlockTransactionIDs(candidates)
+	}
+	if err != nil {
+		return err
+	}
+	if existing.ID > 0 && existing.ID != order.ID {
+		return constant.OrderBlockAlreadyProcess
+	}
+	return nil
+}
+
+func manualBlockTransactionIDIsHex(network string) bool {
+	switch strings.ToLower(strings.TrimSpace(network)) {
+	case mdb.NetworkTron, mdb.NetworkEthereum, mdb.NetworkBsc, mdb.NetworkPolygon, mdb.NetworkPlasma:
+		return true
+	default:
+		return false
+	}
+}
+
+func equivalentManualBlockTransactionIDs(network, canonicalTxID string) []string {
+	network = strings.ToLower(strings.TrimSpace(network))
+	canonicalTxID = strings.TrimSpace(canonicalTxID)
+	seen := make(map[string]struct{})
+	out := make([]string, 0, 6)
+	add := func(value string) {
+		value = strings.TrimSpace(value)
+		if value == "" {
+			return
+		}
+		if _, ok := seen[value]; ok {
+			return
+		}
+		seen[value] = struct{}{}
+		out = append(out, value)
+	}
+
+	add(canonicalTxID)
+	switch network {
+	case mdb.NetworkEthereum, mdb.NetworkBsc, mdb.NetworkPolygon, mdb.NetworkPlasma:
+		body := strings.TrimPrefix(strings.TrimPrefix(canonicalTxID, "0x"), "0X")
+		body = strings.ToLower(body)
+		add("0x" + body)
+		add("0x" + strings.ToUpper(body))
+		add("0X" + body)
+		add("0X" + strings.ToUpper(body))
+		add(body)
+		add(strings.ToUpper(body))
+	case mdb.NetworkTron:
+		body := strings.TrimPrefix(strings.TrimPrefix(canonicalTxID, "0x"), "0X")
+		body = strings.ToLower(body)
+		add(body)
+		add(strings.ToUpper(body))
+		add("0x" + body)
+		add("0x" + strings.ToUpper(body))
+		add("0X" + body)
+		add("0X" + strings.ToUpper(body))
+	}
+	return out
+}
+
+func validateManualEvmPayment(order *mdb.Orders, txID string) (string, error) {
+	txHash, canonicalTxID, err := canonicalEvmHash(txID)
+	if err != nil {
+		return "", err
+	}
+
+	token, err := data.GetEnabledChainTokenBySymbol(order.Network, order.Token)
+	if err != nil {
+		return "", err
+	}
+	if token == nil || token.ID == 0 || strings.TrimSpace(token.ContractAddress) == "" {
+		return "", fmt.Errorf("enabled token contract not configured for %s/%s", order.Network, order.Token)
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), manualVerifyRequestTimeout)
+	defer cancel()
+
+	clients, err := dialManualEvmClients(ctx, order.Network)
+	if err != nil {
+		return "", err
+	}
+	defer closeManualEvmClients(clients)
+
+	if err = validateManualEvmPaymentAcrossClients(ctx, clients, order, txHash, token); err != nil {
+		return "", err
+	}
+	return canonicalTxID, nil
+}
+
+type evmChainReader interface {
+	TransactionReceipt(context.Context, common.Hash) (*types.Receipt, error)
+	HeaderByNumber(context.Context, *big.Int) (*types.Header, error)
+}
+
+type manualEvmClient struct {
+	label  string
+	reader evmChainReader
+	close  func()
+}
+
+func closeManualEvmClients(clients []manualEvmClient) {
+	for _, item := range clients {
+		if item.close != nil {
+			item.close()
+		}
+	}
+}
+
+func validateManualEvmPaymentAcrossClients(ctx context.Context, clients []manualEvmClient, order *mdb.Orders, txHash common.Hash, token *mdb.ChainToken) error {
+	var verifyErrors []string
+	for _, item := range clients {
+		if err := validateManualEvmPaymentWithClient(ctx, item.reader, order, txHash, token); err != nil {
+			verifyErrors = append(verifyErrors, fmt.Sprintf("%s: %v", item.label, err))
+			continue
+		}
+		return nil
+	}
+	if len(verifyErrors) > 0 {
+		return fmt.Errorf("manual EVM verification failed: %s", strings.Join(verifyErrors, "; "))
+	}
+	return fmt.Errorf("no enabled %s WS/HTTP RPC node configured", order.Network)
+}
+
+func validateManualEvmPaymentWithClient(ctx context.Context, client evmChainReader, order *mdb.Orders, txHash common.Hash, token *mdb.ChainToken) error {
+	receipt, err := client.TransactionReceipt(ctx, txHash)
+	if err != nil {
+		return fmt.Errorf("fetch transaction receipt: %w", err)
+	}
+	if receipt.Status != types.ReceiptStatusSuccessful {
+		return fmt.Errorf("transaction is not successful")
+	}
+	if receipt.BlockNumber == nil {
+		return fmt.Errorf("transaction receipt missing block number")
+	}
+	txHeader, err := client.HeaderByNumber(ctx, receipt.BlockNumber)
+	if err != nil {
+		return fmt.Errorf("fetch transaction block header: %w", err)
+	}
+	if err = ensureEvmTransactionNotBeforeOrder(txHeader.Time, order); err != nil {
+		return err
+	}
+	if err = ensureEvmConfirmations(ctx, client, order.Network, receipt.BlockNumber); err != nil {
+		return err
+	}
+
+	contract, err := normalizeEvmAddress(token.ContractAddress)
+	if err != nil {
+		return fmt.Errorf("invalid token contract address: %w", err)
+	}
+	to, err := normalizeEvmAddress(order.ReceiveAddress)
+	if err != nil {
+		return fmt.Errorf("invalid order receive address: %w", err)
+	}
+	amountMismatch := false
+	for _, item := range receipt.Logs {
+		if item == nil || !strings.EqualFold(item.Address.Hex(), contract.Hex()) {
+			continue
+		}
+		if len(item.Topics) < 3 || item.Topics[0] != erc20TransferEventHash {
+			continue
+		}
+		if !strings.EqualFold(common.BytesToAddress(item.Topics[2].Bytes()).Hex(), to.Hex()) {
+			continue
+		}
+		rawAmount := new(big.Int).SetBytes(item.Data)
+		if amountMatchesRaw(order.ActualAmount, rawAmount, token.Decimals) {
+			return nil
+		}
+		amountMismatch = true
+	}
+
+	if amountMismatch {
+		return fmt.Errorf("transaction amount mismatch")
+	}
+	return fmt.Errorf("matching token transfer to order address not found")
+}
+
+func dialManualEvmClients(ctx context.Context, network string) ([]manualEvmClient, error) {
+	var clients []manualEvmClient
+	var connectErrors []string
+
+	nodes, err := listManualEvmRpcCandidates(network)
+	if err != nil {
+		return nil, err
+	}
+	for _, node := range nodes {
+		if strings.TrimSpace(node.Url) == "" {
+			continue
+		}
+		client, err := dialManualEvmClient(ctx, node)
+		if err == nil {
+			clients = append(clients, manualEvmClient{
+				label:  manualRpcNodeLabel(node),
+				reader: client,
+				close:  client.Close,
+			})
+			continue
+		}
+		connectErrors = append(connectErrors, fmt.Sprintf("%s: %v", manualRpcNodeLabel(node), err))
+	}
+	if len(clients) > 0 {
+		return clients, nil
+	}
+	if len(connectErrors) > 0 {
+		return nil, fmt.Errorf("connect %s RPC failed: %s", network, strings.Join(connectErrors, "; "))
+	}
+	return nil, fmt.Errorf("no enabled %s WS/HTTP RPC node configured", network)
+}
+
+func listManualEvmRpcCandidates(network string) ([]mdb.RpcNode, error) {
+	buckets := make([][]mdb.RpcNode, 4)
+	for _, nodeType := range []string{mdb.RpcNodeTypeHttp, mdb.RpcNodeTypeWs} {
+		nodes, err := data.ListManualPaymentRpcCandidates(network, nodeType)
+		if err != nil {
+			return nil, err
+		}
+		for _, node := range nodes {
+			node.Purpose = data.NormalizeRpcNodePurpose(node.Purpose)
+			switch node.Purpose {
+			case mdb.RpcNodePurposeGeneral, mdb.RpcNodePurposeBoth:
+				if node.Status == mdb.RpcNodeStatusOk {
+					buckets[0] = append(buckets[0], node)
+				} else {
+					buckets[1] = append(buckets[1], node)
+				}
+			case mdb.RpcNodePurposeManualVerify:
+				if node.Status == mdb.RpcNodeStatusOk {
+					buckets[2] = append(buckets[2], node)
+				} else {
+					buckets[3] = append(buckets[3], node)
+				}
+			}
+		}
+	}
+
+	out := make([]mdb.RpcNode, 0)
+	for _, bucket := range buckets {
+		out = append(out, bucket...)
+	}
+	return out, nil
+}
+
+func dialManualEvmClient(ctx context.Context, node mdb.RpcNode) (*ethclient.Client, error) {
+	rpcURL := strings.TrimSpace(node.Url)
+	return ethclient.DialContext(ctx, rpcURL)
+}
+
+func manualRpcNodeLabel(node mdb.RpcNode) string {
+	purpose := data.NormalizeRpcNodePurpose(node.Purpose)
+	return fmt.Sprintf("%s purpose=%s", data.RpcNodeLogLabel(node), purpose)
+}
+
+func ensureEvmTransactionNotBeforeOrder(blockTime uint64, order *mdb.Orders) error {
+	if order == nil {
+		return fmt.Errorf("order not found")
+	}
+	if int64(blockTime)*1000 < order.CreatedAt.TimestampMilli() {
+		return fmt.Errorf("transaction predates the order")
+	}
+	return nil
+}
+
+func ensureEvmConfirmations(ctx context.Context, client evmChainReader, network string, txBlock *big.Int) error {
+	chain, err := data.GetChainByNetwork(network)
+	if err != nil {
+		return err
+	}
+	minConfirmations := 1
+	if chain != nil && chain.MinConfirmations > 0 {
+		minConfirmations = chain.MinConfirmations
+	}
+	header, err := client.HeaderByNumber(ctx, nil)
+	if err != nil {
+		return fmt.Errorf("fetch latest block: %w", err)
+	}
+	confirmations := new(big.Int).Sub(header.Number, txBlock)
+	confirmations.Add(confirmations, big.NewInt(1))
+	if confirmations.Sign() < 0 || confirmations.Cmp(big.NewInt(int64(minConfirmations))) < 0 {
+		return fmt.Errorf("transaction confirmations %s below required %d", confirmations.String(), minConfirmations)
+	}
+	return nil
+}
+
+type tronContractParam struct {
+	TypeURL string          `json:"type_url"`
+	Value   json.RawMessage `json:"value"`
+}
+
+type manualTronTransaction struct {
+	TxID    string `json:"txID"`
+	RawData struct {
+		Contract []struct {
+			Type      string            `json:"type"`
+			Parameter tronContractParam `json:"parameter"`
+		} `json:"contract"`
+		Timestamp int64 `json:"timestamp"`
+	} `json:"raw_data"`
+	Ret []struct {
+		ContractRet string `json:"contractRet"`
+	} `json:"ret"`
+}
+
+type manualTronTxInfo struct {
+	ID             string               `json:"id"`
+	BlockNumber    int64                `json:"blockNumber"`
+	BlockTimeStamp int64                `json:"blockTimeStamp"`
+	ContractResult []string             `json:"contractResult"`
+	Log            []manualTronEventLog `json:"log"`
+	Receipt        struct {
+		Result string `json:"result"`
+	} `json:"receipt"`
+}
+
+type manualTronEventLog struct {
+	Address string   `json:"address"`
+	Topics  []string `json:"topics"`
+	Data    string   `json:"data"`
+}
+
+type manualTronBlock struct {
+	BlockHeader struct {
+		RawData struct {
+			Number int64 `json:"number"`
+		} `json:"raw_data"`
+	} `json:"block_header"`
+}
+
+type manualTronTransferContractValue struct {
+	OwnerAddress string `json:"owner_address"`
+	ToAddress    string `json:"to_address"`
+	Amount       int64  `json:"amount"`
+}
+
+func validateManualTronPayment(order *mdb.Orders, txID string) (string, error) {
+	normalizedTxID, err := normalizeTronTxID(txID)
+	if err != nil {
+		return "", err
+	}
+
+	nodes, err := data.ListManualPaymentRpcCandidates(mdb.NetworkTron, mdb.RpcNodeTypeHttp)
+	if err != nil {
+		return "", err
+	}
+	if len(nodes) == 0 {
+		return "", fmt.Errorf("no enabled %s %s RPC node configured in rpc_nodes", mdb.NetworkTron, mdb.RpcNodeTypeHttp)
+	}
+
+	var verifyErrors []string
+	for _, node := range nodes {
+		if strings.TrimSpace(node.Url) == "" {
+			continue
+		}
+		if err = validateManualTronPaymentWithNode(order, normalizedTxID, node); err != nil {
+			verifyErrors = append(verifyErrors, fmt.Sprintf("%s: %v", manualRpcNodeLabel(node), err))
+			continue
+		}
+		return normalizedTxID, nil
+	}
+	if len(verifyErrors) > 0 {
+		return "", fmt.Errorf("manual TRON verification failed: %s", strings.Join(verifyErrors, "; "))
+	}
+	return "", fmt.Errorf("no enabled %s %s RPC node configured in rpc_nodes", mdb.NetworkTron, mdb.RpcNodeTypeHttp)
+}
+
+func validateManualTronPaymentWithNode(order *mdb.Orders, normalizedTxID string, node mdb.RpcNode) error {
+	baseURL := strings.TrimSpace(node.Url)
+	var tx manualTronTransaction
+	if err := tronPostJSON(baseURL, node.ApiKey, "/wallet/gettransactionbyid", map[string]interface{}{"value": normalizedTxID}, &tx); err != nil {
+		return fmt.Errorf("fetch tron transaction: %w", err)
+	}
+	if strings.TrimSpace(tx.TxID) == "" {
+		return fmt.Errorf("transaction not found")
+	}
+	if strings.TrimSpace(tx.TxID) != "" && !strings.EqualFold(strings.TrimSpace(tx.TxID), normalizedTxID) {
+		return fmt.Errorf("transaction id mismatch")
+	}
+	if len(tx.Ret) > 0 && tx.Ret[0].ContractRet != "" && tx.Ret[0].ContractRet != "SUCCESS" {
+		return fmt.Errorf("transaction is not successful: %s", tx.Ret[0].ContractRet)
+	}
+
+	var info manualTronTxInfo
+	if err := tronPostJSON(baseURL, node.ApiKey, "/wallet/gettransactioninfobyid", map[string]interface{}{"value": normalizedTxID}, &info); err != nil {
+		return fmt.Errorf("fetch tron transaction info: %w", err)
+	}
+	if info.BlockNumber <= 0 {
+		return fmt.Errorf("transaction is not confirmed")
+	}
+	if info.Receipt.Result != "" && info.Receipt.Result != "SUCCESS" {
+		return fmt.Errorf("transaction is not successful: %s", info.Receipt.Result)
+	}
+	if err := ensureTronConfirmations(baseURL, node.ApiKey, order.Network, info.BlockNumber); err != nil {
+		return err
+	}
+	if info.BlockTimeStamp <= 0 {
+		return fmt.Errorf("transaction block timestamp missing")
+	}
+	if info.BlockTimeStamp < order.CreatedAt.TimestampMilli() {
+		return fmt.Errorf("transaction predates the order")
+	}
+
+	if strings.EqualFold(strings.TrimSpace(order.Token), "TRX") {
+		if err := validateManualTronNativeTransfer(order, &tx); err != nil {
+			return err
+		}
+		return nil
+	}
+	if err := validateManualTronTRC20Transfer(order, &tx, &info); err != nil {
+		return err
+	}
+	return nil
+}
+
+func validateManualTronNativeTransfer(order *mdb.Orders, tx *manualTronTransaction) error {
+	if len(tx.RawData.Contract) == 0 || tx.RawData.Contract[0].Type != "TransferContract" {
+		return fmt.Errorf("transaction is not a TRX transfer")
+	}
+	var val manualTronTransferContractValue
+	if err := json.Unmarshal(tx.RawData.Contract[0].Parameter.Value, &val); err != nil {
+		return err
+	}
+	toAddr, err := tronHexToAddress(val.ToAddress)
+	if err != nil {
+		return fmt.Errorf("invalid TRX recipient address: %w", err)
+	}
+	if !strings.EqualFold(toAddr, order.ReceiveAddress) {
+		return fmt.Errorf("transaction recipient mismatch")
+	}
+	if !amountMatchesRaw(order.ActualAmount, big.NewInt(val.Amount), 6) {
+		return fmt.Errorf("transaction amount mismatch")
+	}
+	return nil
+}
+
+func validateManualTronTRC20Transfer(order *mdb.Orders, tx *manualTronTransaction, info *manualTronTxInfo) error {
+	token, err := data.GetEnabledChainTokenBySymbol(mdb.NetworkTron, order.Token)
+	if err != nil {
+		return err
+	}
+	if token == nil || token.ID == 0 || strings.TrimSpace(token.ContractAddress) == "" {
+		return fmt.Errorf("enabled token contract not configured for tron/%s", order.Token)
+	}
+	if len(tx.RawData.Contract) == 0 || tx.RawData.Contract[0].Type != "TriggerSmartContract" {
+		return fmt.Errorf("transaction is not a TRC20 transfer")
+	}
+	contractHex, err := tronAddressToHex(token.ContractAddress)
+	if err != nil {
+		return fmt.Errorf("invalid configured TRC20 contract: %w", err)
+	}
+	return validateManualTronTRC20TransferEvent(order, info, contractHex, token.Decimals)
+}
+
+func validateManualTronTRC20TransferEvent(order *mdb.Orders, info *manualTronTxInfo, contractHex string, decimals int) error {
+	if info == nil || len(info.Log) == 0 {
+		return fmt.Errorf("matching TRC20 transfer event to order address not found")
+	}
+	toHex, err := tronAddressToHex(order.ReceiveAddress)
+	if err != nil {
+		return fmt.Errorf("invalid order receive address: %w", err)
+	}
+	transferTopic := strings.TrimPrefix(erc20TransferEventHash.Hex(), "0x")
+	amountMismatch := false
+	for _, event := range info.Log {
+		eventContractHex, err := normalizeTronAddressHex(event.Address)
+		if err != nil || eventContractHex != contractHex {
+			continue
+		}
+		if len(event.Topics) < 3 || normalizeEventTopic(event.Topics[0]) != transferTopic {
+			continue
+		}
+		eventToHex, err := tronTopicAddressToHex(event.Topics[2])
+		if err != nil || eventToHex != toHex {
+			continue
+		}
+		rawAmount, err := tronEventDataAmount(event.Data)
+		if err != nil {
+			return fmt.Errorf("invalid TRC20 transfer event amount: %w", err)
+		}
+		if amountMatchesRaw(order.ActualAmount, rawAmount, decimals) {
+			return nil
+		}
+		amountMismatch = true
+	}
+	if amountMismatch {
+		return fmt.Errorf("transaction amount mismatch")
+	}
+	return fmt.Errorf("matching TRC20 transfer event to order address not found")
+}
+
+func ensureTronConfirmations(baseURL, apiKey, network string, txBlock int64) error {
+	var latest manualTronBlock
+	if err := tronPostJSON(baseURL, apiKey, "/wallet/getnowblock", map[string]interface{}{}, &latest); err != nil {
+		return fmt.Errorf("fetch latest tron block: %w", err)
+	}
+	chain, err := data.GetChainByNetwork(network)
+	if err != nil {
+		return err
+	}
+	minConfirmations := 1
+	if chain != nil && chain.MinConfirmations > 0 {
+		minConfirmations = chain.MinConfirmations
+	}
+	confirmations := latest.BlockHeader.RawData.Number - txBlock + 1
+	if confirmations < int64(minConfirmations) {
+		return fmt.Errorf("transaction confirmations %d below required %d", confirmations, minConfirmations)
+	}
+	return nil
+}
+
+func tronPostJSON(baseURL, apiKey, path string, body interface{}, out interface{}) error {
+	payload, _ := json.Marshal(body)
+	req, err := http.NewRequest(http.MethodPost, strings.TrimRight(baseURL, "/")+path, bytes.NewReader(payload))
+	if err != nil {
+		return err
+	}
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Accept", "application/json")
+	if apiKey = strings.TrimSpace(apiKey); apiKey != "" {
+		req.Header.Set("TRON-PRO-API-KEY", apiKey)
+	}
+	client := &http.Client{Timeout: manualVerifyRequestTimeout}
+	resp, err := client.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	raw, _ := io.ReadAll(resp.Body)
+	if resp.StatusCode != http.StatusOK {
+		return fmt.Errorf("HTTP %d: %s", resp.StatusCode, string(raw))
+	}
+	return json.Unmarshal(raw, out)
+}
+
+func validateManualSolanaPayment(order *mdb.Orders, sig string) (string, error) {
+	sig = strings.TrimSpace(sig)
+	nodes, err := data.ListManualPaymentRpcCandidates(mdb.NetworkSolana, mdb.RpcNodeTypeHttp)
+	if err != nil {
+		return "", err
+	}
+	if len(nodes) == 0 {
+		return "", fmt.Errorf("no enabled %s %s RPC node configured in rpc_nodes", mdb.NetworkSolana, mdb.RpcNodeTypeHttp)
+	}
+
+	var verifyErrors []string
+	for _, node := range nodes {
+		rpcURL := strings.TrimSpace(node.Url)
+		if rpcURL == "" {
+			continue
+		}
+		if err = validateManualSolanaPaymentWithRPC(order, sig, node); err != nil {
+			verifyErrors = append(verifyErrors, fmt.Sprintf("%s: %v", manualRpcNodeLabel(node), err))
+			continue
+		}
+		return sig, nil
+	}
+	if len(verifyErrors) > 0 {
+		return "", fmt.Errorf("manual Solana verification failed: %s", strings.Join(verifyErrors, "; "))
+	}
+	return "", fmt.Errorf("no enabled %s %s RPC node configured in rpc_nodes", mdb.NetworkSolana, mdb.RpcNodeTypeHttp)
+}
+
+func validateManualSolanaPaymentWithRPC(order *mdb.Orders, sig string, node mdb.RpcNode) error {
+	rpcURL := strings.TrimSpace(node.Url)
+	txData, err := solGetTransactionWithURL(rpcURL, sig)
+	if err != nil {
+		return fmt.Errorf("fetch solana transaction: %w", err)
+	}
+	if !gjson.GetBytes(txData, "result").Exists() || gjson.GetBytes(txData, "result").Type == gjson.Null {
+		return fmt.Errorf("transaction not found")
+	}
+	if err = ensureSolanaConfirmationsWithRPC(order.Network, sig, rpcURL); err != nil {
+		return err
+	}
+
+	tokens, err := data.ListEnabledChainTokensByNetwork(mdb.NetworkSolana)
+	if err != nil {
+		return err
+	}
+	mintTokens := make(map[string]*mdb.ChainToken, len(tokens))
+	var nativeSolToken *mdb.ChainToken
+	for i := range tokens {
+		sym := strings.ToUpper(strings.TrimSpace(tokens[i].Symbol))
+		mint := strings.TrimSpace(tokens[i].ContractAddress)
+		if sym == "SOL" && mint == "" {
+			nativeSolToken = &tokens[i]
+			continue
+		}
+		if mint != "" {
+			mintTokens[mint] = &tokens[i]
+		}
+	}
+
+	instructions := gjson.GetBytes(txData, "result.transaction.message.instructions").Array()
+	amountMismatch := false
+	for _, instruction := range instructions {
+		transferInfo, parseErr := ParseTransferInfoFromInstruction(instruction, txData)
+		if parseErr != nil || transferInfo == nil {
+			continue
+		}
+		if !isTransferToAddress(transferInfo, order.ReceiveAddress) {
+			continue
+		}
+		token, amount := resolveSolTokenAndAmount(transferInfo, mintTokens, nativeSolToken)
+		if !strings.EqualFold(token, order.Token) {
+			continue
+		}
+		if err = ensureSolanaTransferNotBeforeOrder(transferInfo.BlockTime, order); err != nil {
+			return err
+		}
+		if amountMatchesFloat(order.ActualAmount, amount) {
+			return nil
+		}
+		amountMismatch = true
+	}
+	if amountMismatch {
+		return fmt.Errorf("transaction amount mismatch")
+	}
+	return fmt.Errorf("matching solana transfer to order address not found")
+}
+
+func ensureSolanaTransferNotBeforeOrder(blockTime int64, order *mdb.Orders) error {
+	if order == nil {
+		return fmt.Errorf("order not found")
+	}
+	if blockTime <= 0 {
+		return fmt.Errorf("transaction block time missing")
+	}
+	if blockTime*1000 < order.CreatedAt.TimestampMilli() {
+		return fmt.Errorf("transaction predates the order")
+	}
+	return nil
+}
+
+func ensureSolanaConfirmations(network, sig string) error {
+	rpcURL, err := resolveSolanaRpcURL()
+	if err != nil {
+		return err
+	}
+	return ensureSolanaConfirmationsWithRPC(network, sig, rpcURL)
+}
+
+func ensureSolanaConfirmationsWithRPC(network, sig string, rpcURL string) error {
+	chain, err := data.GetChainByNetwork(network)
+	if err != nil {
+		return err
+	}
+	minConfirmations := 1
+	if chain != nil && chain.MinConfirmations > 0 {
+		minConfirmations = chain.MinConfirmations
+	}
+	if minConfirmations <= 1 {
+		return nil
+	}
+
+	body, err := solRetryClientWithURL(rpcURL, "getSignatureStatuses", []interface{}{
+		[]string{sig},
+		map[string]interface{}{"searchTransactionHistory": true},
+	})
+	if err != nil {
+		return fmt.Errorf("fetch solana signature status: %w", err)
+	}
+	status := gjson.GetBytes(body, "result.value.0")
+	if !status.Exists() || status.Type == gjson.Null {
+		return fmt.Errorf("transaction status not found")
+	}
+	if errValue := status.Get("err"); errValue.Exists() && errValue.Type != gjson.Null {
+		return fmt.Errorf("transaction is not successful: %s", errValue.Raw)
+	}
+	if status.Get("confirmationStatus").String() == "finalized" {
+		return nil
+	}
+	confirmations := status.Get("confirmations").Int()
+	if confirmations < int64(minConfirmations) {
+		return fmt.Errorf("transaction confirmations %d below required %d", confirmations, minConfirmations)
+	}
+	return nil
+}
+
+func amountMatchesRaw(expected float64, rawAmount *big.Int, decimals int) bool {
+	if rawAmount == nil || rawAmount.Sign() <= 0 {
+		return false
+	}
+	if decimals < 0 {
+		decimals = 0
+	}
+	actual := decimal.NewFromBigInt(rawAmount, -int32(decimals))
+	return roundedAmount(expected).Equal(actual.Round(int32(data.GetAmountPrecision())))
+}
+
+func amountMatchesFloat(expected, actual float64) bool {
+	return roundedAmount(expected).Equal(roundedAmount(actual))
+}
+
+func roundedAmount(amount float64) decimal.Decimal {
+	precision := data.GetAmountPrecision()
+	return decimal.NewFromFloat(math.MustParsePrecFloat64(amount, precision)).Round(int32(precision))
+}
+
+func tronHexToAddress(hexAddr string) (string, error) {
+	hexAddr, err := normalizeTronAddressHex(hexAddr)
+	if err != nil {
+		return "", err
+	}
+	raw, err := hex.DecodeString(hexAddr)
+	if err != nil {
+		return "", err
+	}
+	return tron.EncodeCheck(raw), nil
+}
+
+func tronAddressToHex(addr string) (string, error) {
+	raw, err := tron.DecodeCheck(strings.TrimSpace(addr))
+	if err != nil {
+		return "", err
+	}
+	if len(raw) != 21 || raw[0] != tron.PrefixMainnet {
+		return "", fmt.Errorf("invalid tron address")
+	}
+	return strings.ToLower(hex.EncodeToString(raw)), nil
+}
+
+func normalizeTronAddressHex(hexAddr string) (string, error) {
+	hexAddr = normalizeTronHexAddress(hexAddr)
+	raw, err := hex.DecodeString(hexAddr)
+	if err != nil {
+		return "", err
+	}
+	switch len(raw) {
+	case 20:
+		raw = append([]byte{tron.PrefixMainnet}, raw...)
+	case 21:
+		if raw[0] != tron.PrefixMainnet {
+			return "", fmt.Errorf("invalid tron address prefix")
+		}
+	default:
+		return "", fmt.Errorf("invalid address length: %d", len(raw))
+	}
+	return strings.ToLower(hex.EncodeToString(raw)), nil
+}
+
+func normalizeTronHexAddress(hexAddr string) string {
+	hexAddr = strings.TrimSpace(hexAddr)
+	hexAddr = strings.TrimPrefix(hexAddr, "0x")
+	hexAddr = strings.TrimPrefix(hexAddr, "0X")
+	return strings.ToLower(hexAddr)
+}
+
+func normalizeEventTopic(value string) string {
+	value = strings.TrimSpace(value)
+	value = strings.TrimPrefix(value, "0x")
+	value = strings.TrimPrefix(value, "0X")
+	return strings.ToLower(value)
+}
+
+func tronTopicAddressToHex(topic string) (string, error) {
+	topic = normalizeEventTopic(topic)
+	if len(topic) != 64 {
+		return "", fmt.Errorf("invalid TRON event address topic length")
+	}
+	if _, err := hex.DecodeString(topic); err != nil {
+		return "", err
+	}
+	return normalizeTronAddressHex(topic[24:])
+}
+
+func tronEventDataAmount(data string) (*big.Int, error) {
+	data = normalizeEventTopic(data)
+	if data == "" {
+		return nil, fmt.Errorf("empty event data")
+	}
+	if len(data)%2 != 0 {
+		return nil, fmt.Errorf("odd-length event data")
+	}
+	raw, err := hex.DecodeString(data)
+	if err != nil {
+		return nil, err
+	}
+	return new(big.Int).SetBytes(raw), nil
+}
+
+func isEvmHash(value string) bool {
+	value = strings.TrimSpace(value)
+	value = strings.TrimPrefix(value, "0x")
+	value = strings.TrimPrefix(value, "0X")
+	if len(value) != 64 {
+		return false
+	}
+	_, err := hex.DecodeString(value)
+	return err == nil
+}
+
+func canonicalEvmHash(value string) (common.Hash, string, error) {
+	value = strings.TrimSpace(value)
+	value = strings.TrimPrefix(value, "0x")
+	value = strings.TrimPrefix(value, "0X")
+	if len(value) != 64 {
+		return common.Hash{}, "", fmt.Errorf("invalid EVM transaction hash")
+	}
+	if _, err := hex.DecodeString(value); err != nil {
+		return common.Hash{}, "", err
+	}
+	hash := common.HexToHash("0x" + strings.ToLower(value))
+	return hash, hash.Hex(), nil
+}
+
+func normalizeTronTxID(value string) (string, error) {
+	value = strings.TrimSpace(value)
+	value = strings.TrimPrefix(value, "0x")
+	value = strings.TrimPrefix(value, "0X")
+	if len(value) != 64 {
+		return "", fmt.Errorf("invalid TRON transaction id length")
+	}
+	if _, err := hex.DecodeString(value); err != nil {
+		return "", err
+	}
+	return strings.ToLower(value), nil
+}
+
+func normalizeEvmAddress(value string) (common.Address, error) {
+	value = strings.TrimSpace(value)
+	value = strings.TrimPrefix(value, "0x")
+	value = strings.TrimPrefix(value, "0X")
+	if len(value) != 40 {
+		return common.Address{}, fmt.Errorf("invalid address length")
+	}
+	if _, err := hex.DecodeString(value); err != nil {
+		return common.Address{}, err
+	}
+	return common.HexToAddress("0x" + value), nil
+}

src/model/service/manual_payment_verify_test.go

@@ -0,0 +1,589 @@
+package service
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"math/big"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/GMWalletApp/epusdt/internal/testutil"
+	"github.com/GMWalletApp/epusdt/model/dao"
+	"github.com/GMWalletApp/epusdt/model/mdb"
+	"github.com/dromara/carbon/v2"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+)
+
+func TestManualVerifyEvmHashAcceptsOptional0x(t *testing.T) {
+	hash := strings.Repeat("a", 64)
+	if !isEvmHash(hash) {
+		t.Fatal("expected bare EVM hash to be valid")
+	}
+	if !isEvmHash("0x" + hash) {
+		t.Fatal("expected 0x-prefixed EVM hash to be valid")
+	}
+	if isEvmHash("0x" + strings.Repeat("a", 63)) {
+		t.Fatal("expected short EVM hash to be invalid")
+	}
+}
+
+func TestManualVerifyNormalizeEvmAddressAcceptsOptional0x(t *testing.T) {
+	addr := "1111111111111111111111111111111111111111"
+	want := common.HexToAddress("0x" + addr)
+	got, err := normalizeEvmAddress(addr)
+	if err != nil {
+		t.Fatalf("normalize bare address: %v", err)
+	}
+	if got != want {
+		t.Fatalf("bare address = %s, want %s", got.Hex(), want.Hex())
+	}
+	got, err = normalizeEvmAddress("0X" + strings.ToUpper(addr))
+	if err != nil {
+		t.Fatalf("normalize prefixed address: %v", err)
+	}
+	if got != want {
+		t.Fatalf("prefixed address = %s, want %s", got.Hex(), want.Hex())
+	}
+}
+
+func TestManualVerifyNormalizeTronAddressHexAcceptsOptionalPrefix(t *testing.T) {
+	body := "a614f803b6fd780986a42c78ec9c7f77e6ded13c"
+	want := "41" + body
+
+	for _, input := range []string{body, "0x" + body, want, "0X" + strings.ToUpper(want)} {
+		got, err := normalizeTronAddressHex(input)
+		if err != nil {
+			t.Fatalf("normalizeTronAddressHex(%q): %v", input, err)
+		}
+		if got != want {
+			t.Fatalf("normalizeTronAddressHex(%q) = %q, want %q", input, got, want)
+		}
+	}
+}
+
+func TestManualVerifyNormalizeTronTxIDAcceptsOptional0x(t *testing.T) {
+	txID := strings.Repeat("a", 64)
+	got, err := normalizeTronTxID(txID)
+	if err != nil {
+		t.Fatalf("normalize bare txid: %v", err)
+	}
+	if got != txID {
+		t.Fatalf("bare txid = %q, want %q", got, txID)
+	}
+	got, err = normalizeTronTxID("0X" + strings.ToUpper(txID))
+	if err != nil {
+		t.Fatalf("normalize prefixed txid: %v", err)
+	}
+	if got != txID {
+		t.Fatalf("prefixed txid = %q, want %q", got, txID)
+	}
+	if _, err = normalizeTronTxID("0x" + strings.Repeat("a", 63)); err == nil {
+		t.Fatal("expected short txid to fail")
+	}
+}
+
+func TestManualVerifyDialEvmClientsIncludesHTTPNode(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	if err := dao.Mdb.Create(&mdb.RpcNode{
+		Network: mdb.NetworkEthereum,
+		Type:    mdb.RpcNodeTypeHttp,
+		Url:     "http://127.0.0.1:1",
+		Enabled: true,
+		Status:  mdb.RpcNodeStatusOk,
+	}).Error; err != nil {
+		t.Fatalf("create rpc node: %v", err)
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	defer cancel()
+	clients, err := dialManualEvmClients(ctx, mdb.NetworkEthereum)
+	if err != nil {
+		t.Fatalf("dialManualEvmClients(): %v", err)
+	}
+	defer closeManualEvmClients(clients)
+	if len(clients) != 1 {
+		t.Fatalf("client count = %d, want 1", len(clients))
+	}
+	if !strings.Contains(clients[0].label, mdb.RpcNodeTypeHttp) {
+		t.Fatalf("client label = %q, want HTTP node", clients[0].label)
+	}
+}
+
+func TestManualVerifyEvmCandidatesPreferGeneralAcrossNodeTypes(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	rows := []mdb.RpcNode{
+		{Network: mdb.NetworkEthereum, Type: mdb.RpcNodeTypeHttp, Url: "http://manual.example.com", Weight: 100, Enabled: true, Purpose: mdb.RpcNodePurposeManualVerify, Status: mdb.RpcNodeStatusOk},
+		{Network: mdb.NetworkEthereum, Type: mdb.RpcNodeTypeWs, Url: "ws://general.example.com", Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+	}
+	if err := dao.Mdb.Create(&rows).Error; err != nil {
+		t.Fatalf("seed rpc_nodes: %v", err)
+	}
+
+	got, err := listManualEvmRpcCandidates(mdb.NetworkEthereum)
+	if err != nil {
+		t.Fatalf("listManualEvmRpcCandidates(): %v", err)
+	}
+	urls := make([]string, 0, len(got))
+	for _, node := range got {
+		urls = append(urls, node.Url)
+	}
+	want := []string{"ws://general.example.com", "http://manual.example.com"}
+	if len(urls) != len(want) {
+		t.Fatalf("candidate urls = %#v, want %#v", urls, want)
+	}
+	for i := range want {
+		if urls[i] != want[i] {
+			t.Fatalf("candidate urls = %#v, want %#v", urls, want)
+		}
+	}
+}
+
+func TestManualRpcNodeLabelHidesSensitiveURLParts(t *testing.T) {
+	label := manualRpcNodeLabel(mdb.RpcNode{
+		BaseModel: mdb.BaseModel{ID: 9},
+		Network:   mdb.NetworkEthereum,
+		Type:      mdb.RpcNodeTypeHttp,
+		Url:       "https://rpc.example.com/v3/secret-key?token=secret",
+		Purpose:   mdb.RpcNodePurposeManualVerify,
+	})
+	if strings.Contains(label, "secret") || strings.Contains(label, "/v3/") {
+		t.Fatalf("manualRpcNodeLabel() leaked sensitive URL parts: %s", label)
+	}
+	if !strings.Contains(label, "endpoint=https://rpc.example.com") {
+		t.Fatalf("manualRpcNodeLabel() = %s, want sanitized endpoint", label)
+	}
+	if !strings.Contains(label, "purpose=manual_verify") {
+		t.Fatalf("manualRpcNodeLabel() = %s, want purpose", label)
+	}
+}
+
+func TestManualVerifyDialEvmClientDoesNotForwardUserIPHeader(t *testing.T) {
+	var headerCalls int32
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if got := r.Header.Get("X-USER-IP"); got != "" {
+			t.Errorf("X-USER-IP header = %q, want empty", got)
+			http.Error(w, "unexpected user ip header", http.StatusBadRequest)
+			return
+		}
+		atomic.AddInt32(&headerCalls, 1)
+		w.Header().Set("Content-Type", "application/json")
+		_ = json.NewEncoder(w).Encode(map[string]interface{}{
+			"jsonrpc": "2.0",
+			"id":      1,
+			"error": map[string]interface{}{
+				"code":    -32000,
+				"message": "not found",
+			},
+		})
+	}))
+	defer server.Close()
+
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	defer cancel()
+	client, err := dialManualEvmClient(ctx, mdb.RpcNode{
+		Network: mdb.NetworkEthereum,
+		Type:    mdb.RpcNodeTypeHttp,
+		Url:     server.URL,
+		Purpose: mdb.RpcNodePurposeManualVerify,
+	})
+	if err != nil {
+		t.Fatalf("dialManualEvmClient(): %v", err)
+	}
+	defer client.Close()
+
+	_, _ = client.TransactionReceipt(ctx, common.HexToHash("0x"+strings.Repeat("a", 64)))
+	if got := atomic.LoadInt32(&headerCalls); got == 0 {
+		t.Fatal("manual verify EVM request did not reach test RPC")
+	}
+}
+
+func TestManualVerifyDialEvmClientDoesNotForwardUserIPForGeneralNode(t *testing.T) {
+	var calls int32
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if got := r.Header.Get("X-USER-IP"); got != "" {
+			t.Errorf("X-USER-IP header = %q, want empty", got)
+			http.Error(w, "unexpected user ip header", http.StatusBadRequest)
+			return
+		}
+		atomic.AddInt32(&calls, 1)
+		w.Header().Set("Content-Type", "application/json")
+		_ = json.NewEncoder(w).Encode(map[string]interface{}{
+			"jsonrpc": "2.0",
+			"id":      1,
+			"error": map[string]interface{}{
+				"code":    -32000,
+				"message": "not found",
+			},
+		})
+	}))
+	defer server.Close()
+
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	defer cancel()
+	client, err := dialManualEvmClient(ctx, mdb.RpcNode{
+		Network: mdb.NetworkEthereum,
+		Type:    mdb.RpcNodeTypeHttp,
+		Url:     server.URL,
+		Purpose: mdb.RpcNodePurposeGeneral,
+	})
+	if err != nil {
+		t.Fatalf("dialManualEvmClient(): %v", err)
+	}
+	defer client.Close()
+
+	_, _ = client.TransactionReceipt(ctx, common.HexToHash("0x"+strings.Repeat("a", 64)))
+	if got := atomic.LoadInt32(&calls); got == 0 {
+		t.Fatal("general EVM request did not reach test RPC")
+	}
+}
+
+func TestTronPostJSONDoesNotForwardUserIPWithoutHeaders(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if got := r.Header.Get("X-USER-IP"); got != "" {
+			t.Errorf("X-USER-IP header = %q, want empty", got)
+			http.Error(w, "unexpected user ip header", http.StatusBadRequest)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = w.Write([]byte(`{"ok":true}`))
+	}))
+	defer server.Close()
+
+	var out map[string]interface{}
+	if err := tronPostJSON(server.URL, "", "/wallet/getnowblock", map[string]interface{}{}, &out); err != nil {
+		t.Fatalf("tronPostJSON(): %v", err)
+	}
+}
+
+func TestManualVerifyEvmRejectsTransactionBeforeOrder(t *testing.T) {
+	order := &mdb.Orders{BaseModel: mdb.BaseModel{CreatedAt: *carbon.NewTime(carbon.CreateFromTimestampMilli(time.Now().UnixMilli()))}}
+	txTime := uint64(time.Now().Add(-time.Hour).Unix())
+	if err := ensureEvmTransactionNotBeforeOrder(txTime, order); err == nil {
+		t.Fatal("expected transaction before order to be rejected")
+	}
+	txTime = uint64(time.Now().Add(time.Minute).Unix())
+	if err := ensureEvmTransactionNotBeforeOrder(txTime, order); err != nil {
+		t.Fatalf("expected transaction after order to pass: %v", err)
+	}
+}
+
+func TestManualVerifyCanonicalEvmHash(t *testing.T) {
+	hash := strings.Repeat("a", 64)
+	_, canonical, err := canonicalEvmHash("0X" + strings.ToUpper(hash))
+	if err != nil {
+		t.Fatalf("canonicalEvmHash(): %v", err)
+	}
+	if canonical != "0x"+hash {
+		t.Fatalf("canonical hash = %q, want %q", canonical, "0x"+hash)
+	}
+}
+
+func TestManualVerifyEquivalentBlockIDsCatchLegacyVariants(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	hash := strings.Repeat("b", 64)
+	mixedHash := "0x" + strings.Repeat("bB", 32)
+	if err := dao.Mdb.Create(&mdb.Orders{
+		TradeId:            "paid-legacy-hash",
+		OrderId:            "paid-legacy-hash",
+		Status:             mdb.StatusPaySuccess,
+		Network:            mdb.NetworkEthereum,
+		BlockTransactionId: mixedHash,
+	}).Error; err != nil {
+		t.Fatalf("create existing order: %v", err)
+	}
+
+	order := &mdb.Orders{BaseModel: mdb.BaseModel{ID: 999}, Network: mdb.NetworkEthereum}
+	if err := ensureManualBlockTransactionUnused(order, "0x"+hash); err == nil {
+		t.Fatal("expected legacy hash variant to be treated as already processed")
+	}
+}
+
+func TestManualVerifyEvmRequestFailureFallsBackToNextClient(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	contract := common.HexToAddress("0x1111111111111111111111111111111111111111")
+	to := common.HexToAddress("0x2222222222222222222222222222222222222222")
+	rawAmount := big.NewInt(1230000)
+	receipt := &types.Receipt{
+		Status:      types.ReceiptStatusSuccessful,
+		BlockNumber: big.NewInt(10),
+		Logs: []*types.Log{{
+			Address: contract,
+			Topics: []common.Hash{
+				erc20TransferEventHash,
+				common.Hash{},
+				common.BytesToHash(to.Bytes()),
+			},
+			Data: common.LeftPadBytes(rawAmount.Bytes(), 32),
+		}},
+	}
+	order := &mdb.Orders{
+		Network:        mdb.NetworkEthereum,
+		Token:          "USDT",
+		ActualAmount:   1.23,
+		ReceiveAddress: to.Hex(),
+		BaseModel:      mdb.BaseModel{CreatedAt: *carbon.NewTime(carbon.CreateFromTimestampMilli(time.Now().Add(-time.Minute).UnixMilli()))},
+	}
+	token := &mdb.ChainToken{Network: mdb.NetworkEthereum, Symbol: "USDT", ContractAddress: contract.Hex(), Decimals: 6}
+
+	err := validateManualEvmPaymentAcrossClients(context.Background(), []manualEvmClient{
+		{label: "ws bad", reader: &fakeEvmReader{receiptErr: errors.New("ws receipt failed")}},
+		{label: "http ok", reader: &fakeEvmReader{
+			receipt: receipt,
+			headers: map[string]*types.Header{
+				"10":     {Number: big.NewInt(10), Time: uint64(time.Now().Unix())},
+				"latest": {Number: big.NewInt(12), Time: uint64(time.Now().Unix())},
+			},
+		}},
+	}, order, common.HexToHash("0x"+strings.Repeat("c", 64)), token)
+	if err != nil {
+		t.Fatalf("validateManualEvmPaymentAcrossClients(): %v", err)
+	}
+}
+
+func TestManualVerifyTronTRC20UsesTransferEvent(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	contractHex := "411111111111111111111111111111111111111111"
+	recipientHex := "41a614f803b6fd780986a42c78ec9c7f77e6ded13c"
+	contractAddress, err := tronHexToAddress(contractHex)
+	if err != nil {
+		t.Fatalf("contract address: %v", err)
+	}
+	recipientAddress, err := tronHexToAddress(recipientHex)
+	if err != nil {
+		t.Fatalf("recipient address: %v", err)
+	}
+	if err = dao.Mdb.Create(&mdb.ChainToken{
+		Network:         mdb.NetworkTron,
+		Symbol:          "USDT",
+		ContractAddress: contractAddress,
+		Decimals:        6,
+		Enabled:         true,
+	}).Error; err != nil {
+		t.Fatalf("create token: %v", err)
+	}
+
+	rawAmount := big.NewInt(1230000)
+	tx := manualTronTransactionFromCallData(t, contractHex, recipientHex, rawAmount)
+	info := &manualTronTxInfo{Log: []manualTronEventLog{{
+		Address: strings.TrimPrefix(contractHex, "41"),
+		Topics: []string{
+			"0x" + strings.TrimPrefix(erc20TransferEventHash.Hex(), "0x"),
+			strings.Repeat("0", 64),
+			"0x" + strings.Repeat("0", 24) + strings.TrimPrefix(recipientHex, "41"),
+		},
+		Data: "0x" + fmt.Sprintf("%064x", rawAmount),
+	}}}
+	order := &mdb.Orders{ReceiveAddress: recipientAddress, Token: "USDT", ActualAmount: 1.23}
+
+	if err = validateManualTronTRC20Transfer(order, &tx, info); err != nil {
+		t.Fatalf("validateManualTronTRC20Transfer(): %v", err)
+	}
+
+	info.Log[0].Data = "0x" + fmt.Sprintf("%064x", big.NewInt(1240000))
+	if err = validateManualTronTRC20Transfer(order, &tx, info); err == nil {
+		t.Fatal("expected event amount mismatch to fail")
+	}
+}
+
+func TestManualVerifyTronPaymentHTTPFlow(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	txID := strings.Repeat("a", 64)
+	contractHex := "411111111111111111111111111111111111111111"
+	recipientHex := "41a614f803b6fd780986a42c78ec9c7f77e6ded13c"
+	contractAddress, err := tronHexToAddress(contractHex)
+	if err != nil {
+		t.Fatalf("contract address: %v", err)
+	}
+	recipientAddress, err := tronHexToAddress(recipientHex)
+	if err != nil {
+		t.Fatalf("recipient address: %v", err)
+	}
+
+	rawAmount := big.NewInt(1230000)
+	blockTimeMs := time.Now().Add(time.Minute).UnixMilli()
+	requestCalls := 0
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if got := r.Header.Get("X-USER-IP"); got != "" {
+			t.Errorf("X-USER-IP header = %q, want empty", got)
+		}
+		requestCalls++
+		var req map[string]string
+		if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+			t.Errorf("decode tron request: %v", err)
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+		if r.URL.Path != "/wallet/getnowblock" && req["value"] != txID {
+			t.Errorf("request tx id = %q, want %q", req["value"], txID)
+			http.Error(w, "bad tx id", http.StatusBadRequest)
+			return
+		}
+
+		w.Header().Set("Content-Type", "application/json")
+		switch r.URL.Path {
+		case "/wallet/gettransactionbyid":
+			_ = json.NewEncoder(w).Encode(map[string]interface{}{
+				"txID": txID,
+				"raw_data": map[string]interface{}{
+					"contract": []map[string]interface{}{{
+						"type": "TriggerSmartContract",
+						"parameter": map[string]interface{}{
+							"value": map[string]interface{}{},
+						},
+					}},
+				},
+				"ret": []map[string]string{{"contractRet": "SUCCESS"}},
+			})
+		case "/wallet/gettransactioninfobyid":
+			_ = json.NewEncoder(w).Encode(map[string]interface{}{
+				"id":             txID,
+				"blockNumber":    100,
+				"blockTimeStamp": blockTimeMs,
+				"receipt":        map[string]string{"result": "SUCCESS"},
+				"log": []map[string]interface{}{{
+					"address": strings.TrimPrefix(contractHex, "41"),
+					"topics": []string{
+						strings.TrimPrefix(erc20TransferEventHash.Hex(), "0x"),
+						strings.Repeat("0", 64),
+						"0X" + strings.ToUpper(strings.Repeat("0", 24)+strings.TrimPrefix(recipientHex, "41")),
+					},
+					"data": fmt.Sprintf("%064x", rawAmount),
+				}},
+			})
+		case "/wallet/getnowblock":
+			_ = json.NewEncoder(w).Encode(map[string]interface{}{
+				"block_header": map[string]interface{}{
+					"raw_data": map[string]interface{}{"number": 110},
+				},
+			})
+		default:
+			http.NotFound(w, r)
+		}
+	}))
+	defer server.Close()
+
+	if err = dao.Mdb.Create(&mdb.RpcNode{
+		Network: mdb.NetworkTron,
+		Type:    mdb.RpcNodeTypeHttp,
+		Url:     server.URL,
+		Enabled: true,
+		Status:  mdb.RpcNodeStatusOk,
+		Purpose: mdb.RpcNodePurposeManualVerify,
+	}).Error; err != nil {
+		t.Fatalf("create tron rpc node: %v", err)
+	}
+	if err = dao.Mdb.Create(&mdb.ChainToken{
+		Network:         mdb.NetworkTron,
+		Symbol:          "USDT",
+		ContractAddress: contractAddress,
+		Decimals:        6,
+		Enabled:         true,
+	}).Error; err != nil {
+		t.Fatalf("create token: %v", err)
+	}
+	order := &mdb.Orders{
+		TradeId:        "manual-tron-http-flow",
+		OrderId:        "manual-tron-http-flow",
+		ActualAmount:   1.23,
+		ReceiveAddress: recipientAddress,
+		Token:          "USDT",
+		Network:        mdb.NetworkTron,
+		Status:         mdb.StatusWaitPay,
+		PayProvider:    mdb.PaymentProviderOnChain,
+	}
+	if err = dao.Mdb.Create(order).Error; err != nil {
+		t.Fatalf("create order: %v", err)
+	}
+
+	got, err := ValidateManualOrderPayment(order, "0X"+strings.ToUpper(txID))
+	if err != nil {
+		t.Fatalf("ValidateManualOrderPayment(): %v", err)
+	}
+	if got != txID {
+		t.Fatalf("canonical tx id = %q, want %q", got, txID)
+	}
+	if requestCalls != 3 {
+		t.Fatalf("manual verify request calls = %d, want 3", requestCalls)
+	}
+}
+
+func TestManualVerifySolanaRejectsMissingBlockTime(t *testing.T) {
+	order := &mdb.Orders{BaseModel: mdb.BaseModel{CreatedAt: *carbon.NewTime(carbon.CreateFromTimestampMilli(time.Now().UnixMilli()))}}
+	if err := ensureSolanaTransferNotBeforeOrder(0, order); err == nil {
+		t.Fatal("expected missing block time to fail")
+	}
+	if err := ensureSolanaTransferNotBeforeOrder(time.Now().Add(time.Minute).Unix(), order); err != nil {
+		t.Fatalf("expected future block time to pass: %v", err)
+	}
+}
+
+type fakeEvmReader struct {
+	receipt    *types.Receipt
+	receiptErr error
+	headers    map[string]*types.Header
+	headerErr  error
+}
+
+func (f *fakeEvmReader) TransactionReceipt(context.Context, common.Hash) (*types.Receipt, error) {
+	if f.receiptErr != nil {
+		return nil, f.receiptErr
+	}
+	return f.receipt, nil
+}
+
+func (f *fakeEvmReader) HeaderByNumber(_ context.Context, number *big.Int) (*types.Header, error) {
+	if f.headerErr != nil {
+		return nil, f.headerErr
+	}
+	key := "latest"
+	if number != nil {
+		key = number.String()
+	}
+	header := f.headers[key]
+	if header == nil {
+		return nil, fmt.Errorf("missing header %s", key)
+	}
+	return header, nil
+}
+
+func manualTronTransactionFromCallData(t *testing.T, contractHex, recipientHex string, amount *big.Int) manualTronTransaction {
+	t.Helper()
+	body := strings.TrimPrefix(recipientHex, "41")
+	raw := fmt.Sprintf(`{
+		"raw_data": {
+			"contract": [{
+				"type": "TriggerSmartContract",
+				"parameter": {
+					"value": {
+						"contract_address": %q,
+						"data": %q
+					}
+				}
+			}]
+		}
+	}`, contractHex, "a9059cbb"+strings.Repeat("0", 24)+body+fmt.Sprintf("%064x", amount))
+	var tx manualTronTransaction
+	if err := json.Unmarshal([]byte(raw), &tx); err != nil {
+		t.Fatalf("unmarshal tron tx: %v", err)
+	}
+	return tx
+}

src/model/service/okpay_service.go

@@ -0,0 +1,283 @@
+package service
+
+import (
+	"crypto/md5"
+	"encoding/hex"
+	"fmt"
+	"net/url"
+	"path"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/GMWalletApp/epusdt/model/data"
+	"github.com/GMWalletApp/epusdt/model/request"
+	"github.com/GMWalletApp/epusdt/util/constant"
+	"github.com/GMWalletApp/epusdt/util/http_client"
+	"github.com/GMWalletApp/epusdt/util/log"
+)
+
+type okPayCreateDepositResponse struct {
+	Status string `json:"status"`
+	Code   int    `json:"code"`
+	Data   struct {
+		OrderID string `json:"order_id"`
+		PayURL  string `json:"pay_url"`
+	} `json:"data"`
+	Msg string `json:"msg"`
+}
+
+type okPayDepositOrder struct {
+	ProviderOrderID string
+	PayURL          string
+}
+
+type okPayNotifyPayload struct {
+	ID          string `json:"id"`
+	Status      string `json:"status"`
+	Code        string `json:"code"`
+	OrderID     string `json:"order_id"`
+	UniqueID    string `json:"unique_id"`
+	PayUserID   string `json:"pay_user_id"`
+	Amount      string `json:"amount"`
+	Coin        string `json:"coin"`
+	PayStatus   string `json:"pay_status"`
+	NotifyType  string `json:"notify_type"`
+	Sign        string `json:"sign"`
+	RawFormData string `json:"raw_form_data"`
+}
+
+func okPaySign(form map[string]string, shopID string, shopToken string) map[string]string {
+	values := url.Values{}
+	for key, value := range form {
+		if strings.TrimSpace(value) == "" {
+			continue
+		}
+		values.Set(key, value)
+	}
+	values.Set("id", shopID)
+	query, _ := url.QueryUnescape(values.Encode())
+	sum := md5.Sum([]byte(query + "&token=" + shopToken))
+
+	signed := make(map[string]string, len(values)+1)
+	for key, vals := range values {
+		if len(vals) == 0 {
+			continue
+		}
+		signed[key] = vals[0]
+	}
+	signed["sign"] = strings.ToUpper(hex.EncodeToString(sum[:]))
+	return signed
+}
+
+func createOkPayDepositOrder(uniqueID string, amount float64, coin string, returnURL string) (*okPayDepositOrder, error) {
+	shopID := data.GetOkPayShopID()
+	shopToken := data.GetOkPayShopToken()
+	apiURL := strings.TrimSpace(data.GetOkPayAPIURL())
+	callbackURL := data.GetOkPayCallbackURL()
+	if shopID == "" || shopToken == "" || apiURL == "" || callbackURL == "" {
+		return nil, fmt.Errorf("okpay config incomplete")
+	}
+
+	if returnURL == "" {
+		returnURL = data.GetOkPayReturnURL()
+	}
+
+	form := map[string]string{
+		"unique_id":    uniqueID,
+		"name":         uniqueID,
+		"amount":       fmt.Sprintf("%.*f", data.GetAmountPrecision(), amount),
+		"coin":         strings.ToUpper(strings.TrimSpace(coin)),
+		"callback_url": callbackURL,
+		"return_url":   returnURL,
+	}
+	form = okPaySign(form, shopID, shopToken)
+
+	base, err := url.Parse(apiURL)
+	if err != nil {
+		return nil, err
+	}
+	base.Path = path.Join(base.Path, "payLink")
+
+	client := http_client.GetHttpClient()
+	client.SetTimeout(time.Duration(data.GetOkPayTimeoutSeconds()) * time.Second)
+
+	var payload okPayCreateDepositResponse
+	resp, err := client.R().
+		SetFormData(form).
+		SetResult(&payload).
+		Post(base.String())
+	if err != nil {
+		log.Sugar.Warnf("[okpay] create order request failed unique_id=%s api_url=%s callback_url=%s return_url=%s err=%v", uniqueID, base.String(), callbackURL, returnURL, err)
+		return nil, err
+	}
+	if resp.StatusCode() >= 400 {
+		log.Sugar.Warnf("[okpay] create order http error unique_id=%s status=%s api_url=%s callback_url=%s return_url=%s body=%s", uniqueID, resp.Status(), base.String(), callbackURL, returnURL, resp.String())
+		return nil, fmt.Errorf("okpay http status: %s", resp.Status())
+	}
+	if payload.Data.OrderID == "" || payload.Data.PayURL == "" {
+		log.Sugar.Warnf("[okpay] create order rejected unique_id=%s api_url=%s callback_url=%s return_url=%s status=%s code=%d msg=%s", uniqueID, base.String(), callbackURL, returnURL, payload.Status, payload.Code, payload.Msg)
+		if payload.Msg != "" {
+			return nil, fmt.Errorf("okpay create order failed: %s (callback_url=%s)", payload.Msg, callbackURL)
+		}
+		return nil, fmt.Errorf("okpay create order failed (callback_url=%s)", callbackURL)
+	}
+
+	return &okPayDepositOrder{
+		ProviderOrderID: payload.Data.OrderID,
+		PayURL:          payload.Data.PayURL,
+	}, nil
+}
+
+func verifyOkPayNotify(form map[string]string) bool {
+	shopID := data.GetOkPayShopID()
+	shopToken := data.GetOkPayShopToken()
+	signature := strings.TrimSpace(form["sign"])
+	if shopID == "" || shopToken == "" || signature == "" {
+		return false
+	}
+
+	if expected := okPayNotifySign(form, shopToken); expected != "" && strings.EqualFold(expected, signature) {
+		return true
+	}
+
+	unsigned := make(map[string]string, len(form))
+	for key, value := range form {
+		if strings.EqualFold(key, "sign") {
+			continue
+		}
+		unsigned[key] = value
+	}
+	signed := okPaySign(unsigned, shopID, shopToken)
+	return strings.EqualFold(strings.TrimSpace(signed["sign"]), signature)
+}
+
+func okPayNotifySign(form map[string]string, shopToken string) string {
+	orderedKeys := []string{
+		"code",
+		"data[order_id]",
+		"data[unique_id]",
+		"data[pay_user_id]",
+		"data[amount]",
+		"data[coin]",
+		"data[status]",
+		"data[type]",
+		"id",
+		"status",
+	}
+
+	pairs := make([]string, 0, len(orderedKeys))
+	for _, key := range orderedKeys {
+		value := strings.TrimSpace(form[key])
+		if value == "" {
+			continue
+		}
+		pairs = append(pairs, url.QueryEscape(key)+"="+url.QueryEscape(value))
+	}
+	if len(pairs) == 0 {
+		return ""
+	}
+
+	query, err := url.QueryUnescape(strings.Join(pairs, "&"))
+	if err != nil {
+		return ""
+	}
+	sum := md5.Sum([]byte(query + "&token=" + shopToken))
+	return strings.ToUpper(hex.EncodeToString(sum[:]))
+}
+
+func parseOkPayNotify(form map[string]string, rawFormData string) *okPayNotifyPayload {
+	return &okPayNotifyPayload{
+		ID:          strings.TrimSpace(form["id"]),
+		Status:      strings.TrimSpace(form["status"]),
+		Code:        strings.TrimSpace(form["code"]),
+		OrderID:     strings.TrimSpace(form["data[order_id]"]),
+		UniqueID:    strings.TrimSpace(form["data[unique_id]"]),
+		PayUserID:   strings.TrimSpace(form["data[pay_user_id]"]),
+		Amount:      strings.TrimSpace(form["data[amount]"]),
+		Coin:        strings.TrimSpace(form["data[coin]"]),
+		PayStatus:   strings.TrimSpace(form["data[status]"]),
+		NotifyType:  strings.TrimSpace(form["data[type]"]),
+		Sign:        strings.TrimSpace(form["sign"]),
+		RawFormData: rawFormData,
+	}
+}
+
+func HandleOkPayNotify(form map[string]string, rawFormData string) error {
+	if !verifyOkPayNotify(form) {
+		return fmt.Errorf("invalid okpay notify sign")
+	}
+
+	payload := parseOkPayNotify(form, rawFormData)
+
+	if payload.ID == "" || payload.ID != data.GetOkPayShopID() {
+		return fmt.Errorf("okpay notify shop id mismatch: %s", payload.ID)
+	}
+	if payload.UniqueID == "" || payload.OrderID == "" {
+		return fmt.Errorf("missing okpay notify identifiers")
+	}
+
+	order, err := data.GetOrderInfoByTradeId(payload.UniqueID)
+	if err != nil {
+		return err
+	}
+	if order.ID <= 0 {
+		return fmt.Errorf("okpay notify order not found: %s", payload.UniqueID)
+	}
+	if order.PayProvider != "okpay" {
+		return fmt.Errorf("okpay notify order provider mismatch: %s", payload.UniqueID)
+	}
+
+	providerRow, err := data.GetProviderOrderByTradeIDAndProvider(payload.UniqueID, order.PayProvider)
+	if err != nil {
+		return err
+	}
+	if providerRow.ID <= 0 {
+		return fmt.Errorf("okpay provider order not found: %s", payload.UniqueID)
+	}
+
+	_ = data.SaveProviderOrderNotify(payload.UniqueID, order.PayProvider, payload.RawFormData)
+
+	if !strings.EqualFold(payload.Status, "success") || !strings.EqualFold(payload.NotifyType, "deposit") || payload.PayStatus != "1" {
+		log.Sugar.Infof("[okpay] notify ignored trade_id=%s status=%s pay_status=%s type=%s", payload.UniqueID, payload.Status, payload.PayStatus, payload.NotifyType)
+		return nil
+	}
+
+	if providerRow.ProviderOrderID != "" && providerRow.ProviderOrderID != payload.OrderID {
+		return fmt.Errorf("okpay provider order id mismatch: got=%s want=%s", payload.OrderID, providerRow.ProviderOrderID)
+	}
+	if !strings.EqualFold(strings.TrimSpace(order.Token), strings.TrimSpace(payload.Coin)) {
+		return fmt.Errorf("okpay coin mismatch: got=%s want=%s", payload.Coin, order.Token)
+	}
+
+	notifyAmount, err := strconv.ParseFloat(payload.Amount, 64)
+	if err != nil {
+		return fmt.Errorf("invalid okpay amount: %w", err)
+	}
+	precision := data.GetAmountPrecision()
+	if fmt.Sprintf("%.*f", precision, notifyAmount) != fmt.Sprintf("%.*f", precision, order.ActualAmount) {
+		return fmt.Errorf("okpay amount mismatch: got=%.*f want=%.*f", precision, notifyAmount, precision, order.ActualAmount)
+	}
+
+	err = OrderProcessing(&request.OrderProcessingRequest{
+		ReceiveAddress:     order.ReceiveAddress,
+		Currency:           order.Currency,
+		Token:              order.Token,
+		Network:            order.Network,
+		Amount:             order.ActualAmount,
+		TradeId:            order.TradeId,
+		BlockTransactionId: payload.OrderID,
+	})
+	processed := err == nil
+	if err != nil && err != constant.OrderBlockAlreadyProcess {
+		return err
+	}
+
+	if processed {
+		sendPaymentNotification(order)
+	}
+	if err = data.MarkProviderOrderPaid(payload.UniqueID, order.PayProvider, payload.RawFormData); err != nil {
+		return err
+	}
+	return nil
+}

src/model/service/okpay_service_test.go

@@ -0,0 +1,120 @@
+package service
+
+import (
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/GMWalletApp/epusdt/internal/testutil"
+	"github.com/GMWalletApp/epusdt/model/dao"
+	"github.com/GMWalletApp/epusdt/model/data"
+	"github.com/GMWalletApp/epusdt/model/mdb"
+	"github.com/GMWalletApp/epusdt/notify"
+)
+
+func TestHandleOkPayNotifySendsPaymentNotificationOnSuccess(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	const (
+		channelType     = "test-okpay-pay-success"
+		shopID          = "okpay-shop-notify"
+		shopToken       = "okpay-shop-token"
+		tradeID         = "okpay-notify-success-001"
+		orderID         = "merchant-okpay-notify-success-001"
+		providerOrderID = "okpay-provider-success-001"
+		rawFormData     = "raw-okpay-form"
+	)
+
+	got := make(chan string, 1)
+	notify.RegisterSender(channelType, func(config, text string) error {
+		got <- text
+		return nil
+	})
+
+	if err := dao.Mdb.Create(&mdb.NotificationChannel{
+		Type:    channelType,
+		Name:    "test okpay pay success",
+		Config:  "{}",
+		Events:  `{"pay_success":true}`,
+		Enabled: true,
+	}).Error; err != nil {
+		t.Fatalf("seed notification channel: %v", err)
+	}
+	if err := data.SetSetting(mdb.SettingGroupOkPay, mdb.SettingKeyOkPayShopID, shopID, mdb.SettingTypeString); err != nil {
+		t.Fatalf("seed okpay shop id: %v", err)
+	}
+	if err := data.SetSetting(mdb.SettingGroupOkPay, mdb.SettingKeyOkPayShopToken, shopToken, mdb.SettingTypeString); err != nil {
+		t.Fatalf("seed okpay shop token: %v", err)
+	}
+
+	order := &mdb.Orders{
+		TradeId:        tradeID,
+		OrderId:        orderID,
+		Amount:         1,
+		Currency:       "CNY",
+		ActualAmount:   0.15,
+		ReceiveAddress: "OKPAY",
+		Token:          "USDT",
+		Network:        mdb.NetworkTron,
+		Status:         mdb.StatusWaitPay,
+		PaymentType:    mdb.PaymentTypeEpay,
+		PayProvider:    mdb.PaymentProviderOkPay,
+	}
+	if err := dao.Mdb.Create(order).Error; err != nil {
+		t.Fatalf("seed order: %v", err)
+	}
+	if err := dao.Mdb.Create(&mdb.ProviderOrder{
+		TradeId:         tradeID,
+		Provider:        mdb.PaymentProviderOkPay,
+		ProviderOrderID: providerOrderID,
+		Amount:          0.15,
+		Coin:            "USDT",
+		Status:          mdb.ProviderOrderStatusPending,
+	}).Error; err != nil {
+		t.Fatalf("seed provider order: %v", err)
+	}
+
+	form := okPayNotifyTestForm(shopID, shopToken, providerOrderID, tradeID, "0.15000000", "USDT")
+	if err := HandleOkPayNotify(form, rawFormData); err != nil {
+		t.Fatalf("handle okpay notify: %v", err)
+	}
+
+	select {
+	case text := <-got:
+		if !strings.Contains(text, tradeID) {
+			t.Fatalf("notification text = %q, want trade id %s", text, tradeID)
+		}
+		if !strings.Contains(text, orderID) {
+			t.Fatalf("notification text = %q, want order id %s", text, orderID)
+		}
+	case <-time.After(2 * time.Second):
+		t.Fatal("timed out waiting for payment notification")
+	}
+
+	if err := HandleOkPayNotify(form, rawFormData); err != nil {
+		t.Fatalf("handle duplicate okpay notify: %v", err)
+	}
+	select {
+	case text := <-got:
+		t.Fatalf("duplicate notification sent: %q", text)
+	case <-time.After(200 * time.Millisecond):
+	}
+}
+
+func okPayNotifyTestForm(shopID, shopToken, providerOrderID, tradeID, amount, coin string) map[string]string {
+	form := map[string]string{
+		"code":              "200",
+		"id":                shopID,
+		"status":            "success",
+		"data[order_id]":    providerOrderID,
+		"data[unique_id]":   tradeID,
+		"data[pay_user_id]": "123456789",
+		"data[amount]":      amount,
+		"data[coin]":        coin,
+		"data[status]":      "1",
+		"data[type]":        "deposit",
+	}
+	form["sign"] = okPayNotifySign(form, shopToken)
+	return form
+}

src/model/service/order_service.go

@@ -1,12 +1,12 @@
 package service
 
 import (
+	cryptorand "crypto/rand"
+	"encoding/base64"
 	"errors"
 	"fmt"
-	"math/rand"
 	"strings"
 	"sync"
-	"time"
 
 	"github.com/GMWalletApp/epusdt/config"
 	"github.com/GMWalletApp/epusdt/model/dao"
@@ -17,6 +17,7 @@ import (
 	"github.com/GMWalletApp/epusdt/util/constant"
 	"github.com/GMWalletApp/epusdt/util/log"
 	"github.com/GMWalletApp/epusdt/util/math"
+	"github.com/GMWalletApp/epusdt/util/security"
 	"github.com/dromara/carbon/v2"
 	"github.com/shopspring/decimal"
 )
@@ -24,7 +25,6 @@ import (
 const (
 	CnyMinimumPaymentAmount  = 0.01
 	UsdtMinimumPaymentAmount = 0.01
-	UsdtAmountPerIncrement   = 0.01
 	IncrementalMaximumNumber = 100
 )
 
@@ -55,13 +55,19 @@ func normalizeOrderAddressByNetwork(network, address string) string {
 
 // CreateTransaction creates a new payment order.
 func CreateTransaction(req *request.CreateTransactionRequest, apiKey *mdb.ApiKey) (*response.CreateTransactionResponse, error) {
-	gCreateTransactionLock.Lock()
-	defer gCreateTransactionLock.Unlock()
-
 	token := strings.ToUpper(strings.TrimSpace(req.Token))
 	currency := strings.ToUpper(strings.TrimSpace(req.Currency))
 	network := strings.ToLower(strings.TrimSpace(req.Network))
-	payAmount := math.MustParsePrecFloat64(req.Amount, 2)
+	notifyURL := strings.TrimSpace(req.NotifyUrl)
+	if err := security.ValidatePublicHTTPURL(notifyURL); err != nil {
+		return nil, constant.NotifyURLErr
+	}
+
+	gCreateTransactionLock.Lock()
+	defer gCreateTransactionLock.Unlock()
+
+	amountPrecision := data.GetAmountPrecision()
+	payAmount := math.MustParsePrecFloat64(req.Amount, amountPrecision)
 	rate := config.GetRateForCoin(strings.ToLower(token), strings.ToLower(currency))
 	if rate <= 0 {
 		return nil, constant.RateAmountErr
@@ -96,7 +102,7 @@ func CreateTransaction(req *request.CreateTransactionRequest, apiKey *mdb.ApiKey
 	}
 
 	tradeID := GenerateCode()
-	amount := math.MustParsePrecFloat64(decimalTokenAmount.InexactFloat64(), 2)
+	amount := math.MustParsePrecFloat64(decimalTokenAmount.InexactFloat64(), amountPrecision)
 	availableAddress, availableAmount, err := ReserveAvailableWalletAndAmount(tradeID, network, token, amount, walletAddress)
 	if err != nil {
 		return nil, err
@@ -109,17 +115,18 @@ func CreateTransaction(req *request.CreateTransactionRequest, apiKey *mdb.ApiKey
 	order := &mdb.Orders{
 		TradeId:        tradeID,
 		OrderId:        req.OrderId,
-		Amount:         req.Amount,
+		Amount:         payAmount,
 		Currency:       currency,
 		ActualAmount:   availableAmount,
 		ReceiveAddress: availableAddress,
 		Token:          token,
 		Network:        network,
 		Status:         mdb.StatusWaitPay,
-		NotifyUrl:      req.NotifyUrl,
+		NotifyUrl:      notifyURL,
 		RedirectUrl:    req.RedirectUrl,
 		Name:           req.Name,
 		PaymentType:    req.PaymentType,
+		PayProvider:    mdb.PaymentProviderOnChain,
 		ApiKeyID:       apiKeyID(apiKey),
 	}
 	if err = data.CreateOrderWithTransaction(tx, order); err != nil {
@@ -199,6 +206,11 @@ func OrderProcessing(req *request.OrderProcessingRequest) error {
 			if err = data.ExpireOrderByTradeId(sub.TradeId); err != nil {
 				log.Sugar.Warnf("[order] expire sub-order failed, trade_id=%s, err=%v", sub.TradeId, err)
 			}
+			if sub.PayProvider != "" && sub.PayProvider != mdb.PaymentProviderOnChain {
+				if err = data.MarkProviderOrderExpired(sub.TradeId, sub.PayProvider); err != nil {
+					log.Sugar.Warnf("[order] expire provider order failed, trade_id=%s, provider=%s, err=%v", sub.TradeId, sub.PayProvider, err)
+				}
+			}
 			if err = data.UnLockTransaction(sub.Network, sub.ReceiveAddress, sub.Token, sub.ActualAmount); err != nil {
 				log.Sugar.Warnf("[order] unlock sub-order transaction failed, trade_id=%s, err=%v", sub.TradeId, err)
 			}
@@ -257,6 +269,11 @@ func OrderProcessing(req *request.OrderProcessingRequest) error {
 
 	// Release sibling locks after their status transitions commit.
 	for _, sib := range siblings {
+		if sib.PayProvider != "" && sib.PayProvider != mdb.PaymentProviderOnChain {
+			if err = data.MarkProviderOrderExpired(sib.TradeId, sib.PayProvider); err != nil {
+				log.Sugar.Warnf("[order] expire sibling provider order failed, trade_id=%s, provider=%s, err=%v", sib.TradeId, sib.PayProvider, err)
+			}
+		}
 		if err = data.UnLockTransaction(sib.Network, sib.ReceiveAddress, sib.Token, sib.ActualAmount); err != nil {
 			log.Sugar.Warnf("[order] unlock sibling transaction failed, trade_id=%s, err=%v", sib.TradeId, err)
 		}
@@ -269,6 +286,7 @@ func OrderProcessing(req *request.OrderProcessingRequest) error {
 func ReserveAvailableWalletAndAmount(tradeID string, network string, token string, amount float64, walletAddress []mdb.WalletAddress) (string, float64, error) {
 	availableAddress := ""
 	availableAmount := amount
+	amountPrecision := data.GetAmountPrecision()
 
 	tryLockWalletFunc := func(targetAmount float64) (string, error) {
 		for _, address := range walletAddress {
@@ -292,8 +310,8 @@ func ReserveAvailableWalletAndAmount(tradeID string, network string, token strin
 		}
 		if address == "" {
 			decimalOldAmount := decimal.NewFromFloat(availableAmount)
-			decimalIncr := decimal.NewFromFloat(UsdtAmountPerIncrement)
+			decimalIncr := decimal.New(1, int32(-amountPrecision))
-			availableAmount = decimalOldAmount.Add(decimalIncr).InexactFloat64()
+			availableAmount = math.MustParsePrecFloat64(decimalOldAmount.Add(decimalIncr).InexactFloat64(), amountPrecision)
 			continue
 		}
 		availableAddress = address
@@ -304,9 +322,11 @@ func ReserveAvailableWalletAndAmount(tradeID string, network string, token strin
 
 // GenerateCode creates a unique trade id.
 func GenerateCode() string {
-	date := time.Now().Format("20060102")
+	buf := make([]byte, 18)
-	r := rand.Intn(1000)
+	if _, err := cryptorand.Read(buf); err != nil {
-	return fmt.Sprintf("%s%d%03d", date, time.Now().UnixNano()/1e6, r)
+		panic(fmt.Sprintf("generate trade id: crypto/rand failed: %v", err))
+	}
+	return base64.RawURLEncoding.EncodeToString(buf)
 }
 
 // GetOrderInfoByTradeId returns a validated order.
@@ -321,6 +341,92 @@ func GetOrderInfoByTradeId(tradeId string) (*mdb.Orders, error) {
 	return order, nil
 }
 
+// SubmitManualPayment verifies a submitted transaction hash and marks the
+// matching on-chain order paid using the same path as automatic chain scans.
+func SubmitManualPayment(tradeId, blockTransactionId string) (*response.ManualPaymentResponse, error) {
+	tradeId = strings.TrimSpace(tradeId)
+	blockTransactionId = strings.TrimSpace(blockTransactionId)
+
+	order, err := GetOrderInfoByTradeId(tradeId)
+	if err != nil {
+		return nil, err
+	}
+	return submitManualPaymentForOrder(order, blockTransactionId)
+}
+
+// SubmitCashierManualPayment is the public cashier variant. It rejects hashes
+// already stored on any order before touching RPC so repeated/public probes do
+// not spend RPC quota. Admin mark-paid intentionally keeps using
+// SubmitManualPayment and the existing verification path.
+func SubmitCashierManualPayment(tradeId, blockTransactionId string) (*response.ManualPaymentResponse, error) {
+	tradeId = strings.TrimSpace(tradeId)
+	blockTransactionId = strings.TrimSpace(blockTransactionId)
+
+	order, err := GetOrderInfoByTradeId(tradeId)
+	if err != nil {
+		return nil, err
+	}
+	if err = validateManualPaymentOrder(order); err != nil {
+		return nil, err
+	}
+	if err = ensureManualBlockTransactionUnused(order, blockTransactionId); err != nil {
+		return nil, err
+	}
+	return submitManualPaymentForOrder(order, blockTransactionId)
+}
+
+func submitManualPaymentForOrder(order *mdb.Orders, blockTransactionId string) (*response.ManualPaymentResponse, error) {
+	blockTransactionId = strings.TrimSpace(blockTransactionId)
+	if err := validateManualPaymentOrder(order); err != nil {
+		return nil, err
+	}
+
+	verifiedBlockTransactionID, err := ValidateManualOrderPayment(order, blockTransactionId)
+	if err != nil {
+		var rspErr *constant.RspError
+		if errors.As(err, &rspErr) {
+			return nil, err
+		}
+		return nil, constant.ManualPaymentVerifyErr
+	}
+	if err = OrderProcessing(&request.OrderProcessingRequest{
+		ReceiveAddress:     order.ReceiveAddress,
+		Currency:           order.Currency,
+		Token:              order.Token,
+		Network:            order.Network,
+		Amount:             order.ActualAmount,
+		TradeId:            order.TradeId,
+		BlockTransactionId: verifiedBlockTransactionID,
+	}); err != nil {
+		return nil, err
+	}
+
+	updatedOrder, err := GetOrderInfoByTradeId(order.TradeId)
+	if err != nil {
+		return nil, err
+	}
+	return &response.ManualPaymentResponse{
+		TradeId:            updatedOrder.TradeId,
+		Status:             updatedOrder.Status,
+		BlockTransactionId: updatedOrder.BlockTransactionId,
+	}, nil
+}
+
+func validateManualPaymentOrder(order *mdb.Orders) error {
+	if order.Status != mdb.StatusWaitPay {
+		return constant.OrderNotWaitPay
+	}
+	if !isOnChainOrder(order.PayProvider) {
+		return constant.ManualPaymentProviderErr
+	}
+	return nil
+}
+
+func isOnChainOrder(payProvider string) bool {
+	payProvider = strings.TrimSpace(payProvider)
+	return payProvider == "" || payProvider == mdb.PaymentProviderOnChain
+}
+
 const MaxSubOrders = 2
 
 // SwitchNetwork creates or returns an existing sub-order for a different token+network.
@@ -346,6 +452,10 @@ func SwitchNetwork(req *request.SwitchNetworkRequest) (*response.CheckoutCounter
 		return nil, constant.OrderNotWaitPay
 	}
 
+	if network == mdb.PaymentProviderOkPay {
+		return switchToOkPay(parent, token)
+	}
+
 	// 2. Same token+network as parent → mark selected and return
 	if strings.EqualFold(parent.Token, token) && strings.EqualFold(parent.Network, network) {
 		_ = data.MarkOrderSelected(parent.TradeId)
@@ -399,7 +509,7 @@ func SwitchNetwork(req *request.SwitchNetworkRequest) (*response.CheckoutCounter
 	}
 
 	subTradeID := GenerateCode()
-	amount := math.MustParsePrecFloat64(decimalTokenAmount.InexactFloat64(), 2)
+	amount := math.MustParsePrecFloat64(decimalTokenAmount.InexactFloat64(), data.GetAmountPrecision())
 	availableAddress, availableAmount, err := ReserveAvailableWalletAndAmount(subTradeID, network, token, amount, walletAddress)
 	if err != nil {
 		return nil, err
@@ -427,6 +537,7 @@ func SwitchNetwork(req *request.SwitchNetworkRequest) (*response.CheckoutCounter
 		Name:            parent.Name,
 		CallBackConfirm: mdb.CallBackConfirmOk, // don't trigger callback on sub-order
 		PaymentType:     parent.PaymentType,
+		PayProvider:     mdb.PaymentProviderOnChain,
 		ApiKeyID:        parent.ApiKeyID, // inherit from parent so resolveOrderApiKey never fails
 	}
 	if err = data.CreateOrderWithTransaction(tx, subOrder); err != nil {
@@ -458,7 +569,140 @@ func buildCheckoutResponse(order *mdb.Orders) *response.CheckoutCounterResponse
 		Network:        order.Network,
 		ExpirationTime: order.CreatedAt.AddMinutes(config.GetOrderExpirationTime()).TimestampMilli(),
 		RedirectUrl:    order.RedirectUrl,
+		PaymentUrl:     fmt.Sprintf("%s/pay/checkout-counter/%s", config.GetAppUri(), order.TradeId),
 		CreatedAt:      order.CreatedAt.TimestampMilli(),
 		IsSelected:     order.IsSelected,
 	}
 }
+
+func switchToOkPay(parent *mdb.Orders, token string) (*response.CheckoutCounterResponse, error) {
+	if !data.GetOkPayEnabled() {
+		return nil, constant.PaymentProviderNotEnabled
+	}
+	if data.GetOkPayShopID() == "" || data.GetOkPayShopToken() == "" || data.GetOkPayAPIURL() == "" || data.GetOkPayCallbackURL() == "" {
+		return nil, constant.PaymentProviderConfigErr
+	}
+	if !okPayTokenAllowed(token) {
+		return nil, constant.PaymentProviderNotSupport
+	}
+
+	existing, err := data.GetSubOrderByTokenPayProvider(parent.TradeId, token, mdb.PaymentProviderOkPay)
+	if err != nil {
+		return nil, err
+	}
+	if existing.ID > 0 {
+		providerRow, err := data.GetProviderOrderByTradeIDAndProvider(existing.TradeId, mdb.PaymentProviderOkPay)
+		if err != nil {
+			return nil, err
+		}
+		if providerRow.ID == 0 || strings.TrimSpace(providerRow.PayURL) == "" {
+			return nil, constant.SystemErr
+		}
+		_ = data.MarkOrderSelected(parent.TradeId)
+		_ = data.MarkOrderSelected(existing.TradeId)
+		_ = data.RefreshOrderExpiration(parent.TradeId)
+		existing.IsSelected = true
+		resp := buildCheckoutResponse(existing)
+		resp.PaymentUrl = providerRow.PayURL
+		return resp, nil
+	}
+
+	count, err := data.CountActiveSubOrders(parent.TradeId)
+	if err != nil {
+		return nil, err
+	}
+	if count >= MaxSubOrders {
+		return nil, constant.SubOrderLimitExceeded
+	}
+
+	rate := config.GetRateForCoin(strings.ToLower(token), strings.ToLower(parent.Currency))
+	if rate <= 0 {
+		return nil, constant.RateAmountErr
+	}
+	decimalPayAmount := decimal.NewFromFloat(parent.Amount)
+	decimalTokenAmount := decimalPayAmount.Mul(decimal.NewFromFloat(rate))
+	if decimalTokenAmount.Cmp(decimal.NewFromFloat(UsdtMinimumPaymentAmount)) == -1 {
+		return nil, constant.PayAmountErr
+	}
+
+	subTradeID := GenerateCode()
+	amount := math.MustParsePrecFloat64(decimalTokenAmount.InexactFloat64(), data.GetAmountPrecision())
+	returnURL := strings.TrimSpace(parent.RedirectUrl)
+	if returnURL == "" {
+		returnURL = data.GetOkPayReturnURL()
+	}
+	if returnURL == "" {
+		returnURL = fmt.Sprintf("%s/pay/checkout-counter/%s", config.GetAppUri(), parent.TradeId)
+	}
+
+	tx := dao.Mdb.Begin()
+	subOrder := &mdb.Orders{
+		TradeId:         subTradeID,
+		OrderId:         subTradeID,
+		ParentTradeId:   parent.TradeId,
+		Amount:          parent.Amount,
+		Currency:        parent.Currency,
+		ActualAmount:    amount,
+		ReceiveAddress:  "OKPAY",
+		Token:           token,
+		Network:         mdb.NetworkTron,
+		Status:          mdb.StatusWaitPay,
+		IsSelected:      true,
+		NotifyUrl:       "",
+		RedirectUrl:     parent.RedirectUrl,
+		Name:            parent.Name,
+		CallBackConfirm: mdb.CallBackConfirmOk,
+		PaymentType:     parent.PaymentType,
+		PayProvider:     mdb.PaymentProviderOkPay,
+		ApiKeyID:        parent.ApiKeyID,
+	}
+	if err = data.CreateOrderWithTransaction(tx, subOrder); err != nil {
+		tx.Rollback()
+		return nil, err
+	}
+	providerRow := &mdb.ProviderOrder{
+		TradeId:         subTradeID,
+		Provider:        mdb.PaymentProviderOkPay,
+		ProviderOrderID: "",
+		PayURL:          "",
+		Amount:          amount,
+		Coin:            token,
+		Status:          mdb.ProviderOrderStatusCreating,
+	}
+	if err = data.CreateProviderOrderWithTransaction(tx, providerRow); err != nil {
+		tx.Rollback()
+		return nil, err
+	}
+	if err = tx.Commit().Error; err != nil {
+		tx.Rollback()
+		return nil, err
+	}
+
+	okpayOrder, err := createOkPayDepositOrder(subTradeID, amount, token, returnURL)
+	if err != nil {
+		_ = data.MarkProviderOrderFailed(subTradeID, mdb.PaymentProviderOkPay)
+		_ = data.ExpireOrderByTradeID(subTradeID)
+		return nil, constant.PaymentProviderCreateErr
+	}
+	if err = data.UpdateProviderOrderCreated(subTradeID, mdb.PaymentProviderOkPay, okpayOrder.ProviderOrderID, okpayOrder.PayURL); err != nil {
+		_ = data.MarkProviderOrderFailed(subTradeID, mdb.PaymentProviderOkPay)
+		_ = data.ExpireOrderByTradeID(subTradeID)
+		return nil, err
+	}
+
+	_ = data.MarkOrderSelected(parent.TradeId)
+	_ = data.RefreshOrderExpiration(parent.TradeId)
+
+	resp := buildCheckoutResponse(subOrder)
+	resp.PaymentUrl = okpayOrder.PayURL
+	return resp, nil
+}
+
+func okPayTokenAllowed(token string) bool {
+	for _, item := range data.GetOkPayAllowTokens() {
+		if strings.EqualFold(item, token) {
+			return true
+		}
+	}
+	return false
+}

src/model/service/order_service_test.go

@@ -1,10 +1,14 @@
 package service
 
 import (
+	"encoding/base64"
 	"fmt"
+	"io"
+	"net/http"
 	"strings"
 	"sync"
 	"testing"
+	"time"
 
 	"github.com/GMWalletApp/epusdt/internal/testutil"
 	"github.com/GMWalletApp/epusdt/model/dao"
@@ -12,6 +16,8 @@ import (
 	"github.com/GMWalletApp/epusdt/model/mdb"
 	"github.com/GMWalletApp/epusdt/model/request"
 	"github.com/GMWalletApp/epusdt/util/constant"
+	"github.com/GMWalletApp/epusdt/util/http_client"
+	"github.com/go-resty/resty/v2"
 )
 
 func newCreateTransactionRequest(orderID string, amount float64) *request.CreateTransactionRequest {
@@ -21,7 +27,61 @@ func newCreateTransactionRequest(orderID string, amount float64) *request.Create
 		Token:     "USDT",
 		Network:   "tron",
 		Amount:    amount,
-		NotifyUrl: "https://merchant.example/callback",
+		NotifyUrl: "https://93.184.216.34/callback",
+	}
+}
+
+type roundTripFunc func(*http.Request) (*http.Response, error)
+
+func (f roundTripFunc) RoundTrip(req *http.Request) (*http.Response, error) {
+	return f(req)
+}
+
+func TestGenerateCodeFormat(t *testing.T) {
+	tradeID := GenerateCode()
+
+	if len(tradeID) != 24 {
+		t.Fatalf("trade id length = %d, want 24", len(tradeID))
+	}
+	if strings.Contains(tradeID, "=") {
+		t.Fatalf("trade id = %q, contains padding '='", tradeID)
+	}
+	for _, ch := range tradeID {
+		if (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || (ch >= '0' && ch <= '9') || ch == '-' || ch == '_' {
+			continue
+		}
+		t.Fatalf("trade id = %q, contains non URL-safe character %q", tradeID, ch)
+	}
+
+	decoded, err := base64.RawURLEncoding.DecodeString(tradeID)
+	if err != nil {
+		t.Fatalf("decode trade id %q: %v", tradeID, err)
+	}
+	if len(decoded) != 18 {
+		t.Fatalf("decoded trade id length = %d, want 18", len(decoded))
+	}
+}
+
+func installMockHTTPClient(t *testing.T, handler roundTripFunc) {
+	t.Helper()
+
+	oldFactory := http_client.ClientFactory
+	http_client.ClientFactory = func() *resty.Client {
+		client := resty.NewWithClient(&http.Client{Transport: handler})
+		client.SetTimeout(10 * time.Second)
+		return client
+	}
+	t.Cleanup(func() {
+		http_client.ClientFactory = oldFactory
+	})
+}
+
+func TestCreateTransactionRejectsPrivateNotifyURL(t *testing.T) {
+	req := newCreateTransactionRequest("order_private_notify_url", 1)
+	req.NotifyUrl = "http://127.0.0.1/notify"
+
+	if _, err := CreateTransaction(req, nil); err != constant.NotifyURLErr {
+		t.Fatalf("CreateTransaction error = %v, want %v", err, constant.NotifyURLErr)
 	}
 }
 
@@ -72,6 +132,112 @@ func TestCreateTransactionAssignsIncrementedAmountsAndLocks(t *testing.T) {
 	}
 }
 
+func TestCreateTransactionUsesConfiguredAmountPrecision(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	if err := data.SetSetting(mdb.SettingGroupSystem, mdb.SettingKeyAmountPrecision, "4", mdb.SettingTypeInt); err != nil {
+		t.Fatalf("set amount precision: %v", err)
+	}
+	if _, err := data.AddWalletAddress("wallet_precision_1"); err != nil {
+		t.Fatalf("add wallet: %v", err)
+	}
+
+	resp1, err := CreateTransaction(newCreateTransactionRequest("order_precision_1", 1), nil)
+	if err != nil {
+		t.Fatalf("create first transaction: %v", err)
+	}
+	resp2, err := CreateTransaction(newCreateTransactionRequest("order_precision_2", 1), nil)
+	if err != nil {
+		t.Fatalf("create second transaction: %v", err)
+	}
+
+	if got := fmt.Sprintf("%.4f", resp1.ActualAmount); got != "1.0000" {
+		t.Fatalf("first actual amount = %s, want 1.0000", got)
+	}
+	if got := fmt.Sprintf("%.4f", resp2.ActualAmount); got != "1.0001" {
+		t.Fatalf("second actual amount = %s, want 1.0001", got)
+	}
+}
+
+func TestCreateTransactionStoresNormalizedMerchantAmount(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	if _, err := data.AddWalletAddress("wallet_normalized_1"); err != nil {
+		t.Fatalf("add wallet: %v", err)
+	}
+
+	resp, err := CreateTransaction(newCreateTransactionRequest("order_normalized_1", 100.129), nil)
+	if err != nil {
+		t.Fatalf("create transaction: %v", err)
+	}
+	if got := fmt.Sprintf("%.2f", resp.Amount); got != "100.13" {
+		t.Fatalf("response amount = %s, want 100.13", got)
+	}
+
+	order, err := data.GetOrderInfoByTradeId(resp.TradeId)
+	if err != nil {
+		t.Fatalf("load order: %v", err)
+	}
+	if got := fmt.Sprintf("%.2f", order.Amount); got != "100.13" {
+		t.Fatalf("stored amount = %s, want 100.13", got)
+	}
+}
+
+func TestCreateTransactionUsesRateAPIWhenForcedSettingIsNotPositive(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	installMockHTTPClient(t, func(r *http.Request) (*http.Response, error) {
+		if r.URL.Path != "/cny.json" {
+			t.Fatalf("rate api path = %s, want /cny.json", r.URL.Path)
+		}
+		return &http.Response{
+			StatusCode: http.StatusOK,
+			Status:     "200 OK",
+			Header:     http.Header{"Content-Type": []string{"application/json"}},
+			Body:       io.NopCloser(strings.NewReader(`{"cny":{"usdt":0.14635}}`)),
+			Request:    r,
+		}, nil
+	})
+
+	if err := data.SetSetting("rate", "rate.forced_rate_list", `{"cny":{"usdt":0}}`, "json"); err != nil {
+		t.Fatalf("set rate.forced_rate_list: %v", err)
+	}
+	if err := data.SetSetting("rate", "rate.api_url", "https://rate.example.test", "string"); err != nil {
+		t.Fatalf("set rate.api_url: %v", err)
+	}
+	if _, err := data.AddWalletAddress("wallet_1"); err != nil {
+		t.Fatalf("add wallet: %v", err)
+	}
+
+	resp, err := CreateTransaction(newCreateTransactionRequest("order_api_rate_1", 10), nil)
+	if err != nil {
+		t.Fatalf("create transaction: %v", err)
+	}
+	if got := fmt.Sprintf("%.2f", resp.ActualAmount); got != "1.46" {
+		t.Fatalf("actual amount = %s, want 1.46", got)
+	}
+}
+
+func TestCreateTransactionFailsWhenRateAPIUnavailableAndForcedSettingIsNotPositive(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	if err := data.SetSetting("rate", "rate.forced_rate_list", `{"cny":{"usdt":0}}`, "json"); err != nil {
+		t.Fatalf("set rate.forced_rate_list: %v", err)
+	}
+	if err := data.SetSetting("rate", "rate.api_url", "", "string"); err != nil {
+		t.Fatalf("clear rate.api_url: %v", err)
+	}
+
+	_, err := CreateTransaction(newCreateTransactionRequest("order_missing_rate_1", 10), nil)
+	if err != constant.RateAmountErr {
+		t.Fatalf("create transaction error = %v, want %v", err, constant.RateAmountErr)
+	}
+}
+
 func TestCreateTransactionNormalizesEvmReceiveAddressToLowercase(t *testing.T) {
 	cleanup := testutil.SetupTestDatabases(t)
 	defer cleanup()
@@ -534,6 +700,81 @@ func TestOrderProcessingSubOrderPaidParentKeepsOwnFields(t *testing.T) {
 	}
 }
 
+func TestOrderProcessingParentDirectPayExpiresOkPayProviderOrder(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	if _, err := data.AddWalletAddress("TTestTronAddress001"); err != nil {
+		t.Fatalf("add tron wallet: %v", err)
+	}
+
+	parentReq := newCreateTransactionRequest("order_parent_direct_okpay_expire", 1)
+	parentReq.Network = mdb.NetworkTron
+	parentResp, err := CreateTransaction(parentReq, nil)
+	if err != nil {
+		t.Fatalf("create parent order: %v", err)
+	}
+
+	subOrder := &mdb.Orders{
+		TradeId:         "okpay_sub_parent_direct_expire",
+		OrderId:         "okpay_sub_parent_direct_expire",
+		ParentTradeId:   parentResp.TradeId,
+		Amount:          parentResp.Amount,
+		Currency:        parentResp.Currency,
+		ActualAmount:    0.15,
+		ReceiveAddress:  "OKPAY",
+		Token:           "USDT",
+		Network:         mdb.NetworkTron,
+		Status:          mdb.StatusWaitPay,
+		NotifyUrl:       "",
+		CallBackConfirm: mdb.CallBackConfirmOk,
+		PayProvider:     mdb.PaymentProviderOkPay,
+	}
+	if err := dao.Mdb.Create(subOrder).Error; err != nil {
+		t.Fatalf("create okpay sub-order: %v", err)
+	}
+	providerRow := &mdb.ProviderOrder{
+		TradeId:         subOrder.TradeId,
+		Provider:        mdb.PaymentProviderOkPay,
+		ProviderOrderID: "okp-parent-direct-expire",
+		PayURL:          "https://t.me/ExampleWalletBot?start=shop_deposit--okpay-order-parent-direct-expire",
+		Amount:          subOrder.ActualAmount,
+		Coin:            subOrder.Token,
+		Status:          mdb.ProviderOrderStatusPending,
+	}
+	if err := dao.Mdb.Create(providerRow).Error; err != nil {
+		t.Fatalf("create provider row: %v", err)
+	}
+
+	err = OrderProcessing(&request.OrderProcessingRequest{
+		ReceiveAddress:     parentResp.ReceiveAddress,
+		Token:              strings.ToUpper(parentResp.Token),
+		Network:            mdb.NetworkTron,
+		TradeId:            parentResp.TradeId,
+		Amount:             parentResp.ActualAmount,
+		BlockTransactionId: "block_parent_direct_okpay_expire",
+	})
+	if err != nil {
+		t.Fatalf("order processing parent direct pay: %v", err)
+	}
+
+	expiredSub, err := data.GetOrderInfoByTradeId(subOrder.TradeId)
+	if err != nil {
+		t.Fatalf("reload sub-order: %v", err)
+	}
+	if expiredSub.Status != mdb.StatusExpired {
+		t.Fatalf("sub-order status = %d, want %d", expiredSub.Status, mdb.StatusExpired)
+	}
+
+	expiredProviderRow, err := data.GetProviderOrderByTradeIDAndProvider(subOrder.TradeId, mdb.PaymentProviderOkPay)
+	if err != nil {
+		t.Fatalf("reload provider row: %v", err)
+	}
+	if expiredProviderRow.Status != mdb.ProviderOrderStatusExpired {
+		t.Fatalf("provider row status = %q, want %q", expiredProviderRow.Status, mdb.ProviderOrderStatusExpired)
+	}
+}
+
 // TestOrderProcessingSubOrderExpiresSiblingsAndReleasesLocks verifies that when one
 // sub-order is paid all sibling sub-orders are expired and their runtime locks (as
 // well as the parent's lock) are released.

src/model/service/pay_service.go

@@ -1,23 +1,23 @@
 package service
 
 import (
-	"errors"
-
 	"github.com/GMWalletApp/epusdt/config"
 	"github.com/GMWalletApp/epusdt/model/data"
-	"github.com/GMWalletApp/epusdt/model/mdb"
 	"github.com/GMWalletApp/epusdt/model/response"
+	"github.com/GMWalletApp/epusdt/util/constant"
 )
 
-var ErrOrder = errors.New("不存在待支付订单或已过期")
+// ErrOrder is returned when checkout initialization cannot find the trade id.
+var ErrOrder = constant.OrderNotExists
 
-// GetCheckoutCounterByTradeId returns checkout info for a pending order.
+// GetCheckoutCounterByTradeId returns checkout initialization data for an existing order.
+// It does not decide the payment state; callers should use CheckStatus for that.
 func GetCheckoutCounterByTradeId(tradeId string) (*response.CheckoutCounterResponse, error) {
 	orderInfo, err := data.GetOrderInfoByTradeId(tradeId)
 	if err != nil {
 		return nil, err
 	}
-	if orderInfo.ID <= 0 || orderInfo.Status != mdb.StatusWaitPay {
+	if orderInfo.ID <= 0 {
 		return nil, ErrOrder
 	}
 

src/model/service/sol_task.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"math/big"
+	"net/http"
 	"sort"
 	"strings"
 	"sync"
@@ -26,6 +27,14 @@ import (
 // gProcessedSignatures 已处理签名缓存，避免重复调用 getTransaction
 var gProcessedSignatures sync.Map // sig -> unix timestamp
 
+var processSolanaOrder = OrderProcessing
+
+var (
+	solRPCRetryCount   = 5
+	solRPCRetryWait    = 2 * time.Second
+	solRPCRetryMaxWait = 10 * time.Second
+)
+
 type TransferInfo struct {
 	Source      string  // Source address (for SOL) or source ATA (for SPL tokens)
 	Destination string  // Destination address (for SOL) or destination ATA (for SPL tokens)
@@ -150,6 +159,7 @@ func SolCallBack(address string, wg *sync.WaitGroup) {
 	// Process each transaction signature
 	for sigIdx, txSig := range result {
 		sig := txSig.Signature
+		retrySignature := false
 
 		// Skip failed transactions
 		if txSig.Err != nil {
@@ -213,6 +223,7 @@ func SolCallBack(address string, wg *sync.WaitGroup) {
 			tradeID, err := data.GetTradeIdByWalletAddressAndAmountAndToken(mdb.NetworkSolana, address, token, amount)
 			if err != nil {
 				log.Sugar.Errorf("[SOL][%s] sig=%s query transaction_lock failed: %v", address, sig, err)
+				retrySignature = true
 				continue
 			}
 			if tradeID == "" {
@@ -226,6 +237,7 @@ func SolCallBack(address string, wg *sync.WaitGroup) {
 			order, err := data.GetOrderInfoByTradeId(tradeID)
 			if err != nil {
 				log.Sugar.Errorf("[SOL][%s] sig=%s load order failed for trade_id=%s: %v", address, sig, tradeID, err)
+				retrySignature = true
 				continue
 			}
 			log.Sugar.Infof("[SOL][%s] order loaded: trade_id=%s order_id=%s status=%d created_at_ms=%d",
@@ -252,13 +264,14 @@ func SolCallBack(address string, wg *sync.WaitGroup) {
 			}
 			log.Sugar.Infof("[SOL][%s] calling OrderProcessing: trade_id=%s sig=%s token=%s amount=%.2f",
 				address, tradeID, sig, token, amount)
-			err = OrderProcessing(req)
+			err = processSolanaOrder(req)
 			if err != nil {
 				if errors.Is(err, constant.OrderBlockAlreadyProcess) || errors.Is(err, constant.OrderStatusConflict) {
 					log.Sugar.Infof("[SOL][%s] sig=%s already resolved: trade_id=%s reason=%v", address, sig, tradeID, err)
 					continue
 				}
 				log.Sugar.Errorf("[SOL][%s] sig=%s OrderProcessing failed for trade_id=%s: %v", address, sig, tradeID, err)
+				retrySignature = true
 				continue
 			}
 
@@ -268,6 +281,11 @@ func SolCallBack(address string, wg *sync.WaitGroup) {
 			log.Sugar.Infof("[SOL][%s] payment fully processed: trade_id=%s sig=%s", address, tradeID, sig)
 		}
 
+		if retrySignature {
+			log.Sugar.Debugf("[SOL][%s] sig=%s not marked processed because retryable processing failed", address, sig)
+			continue
+		}
+
 		// 标记已处理
 		gProcessedSignatures.Store(sig, time.Now().Unix())
 	}
@@ -282,26 +300,74 @@ type solSignatureResult struct {
 }
 
 func resolveSolanaRpcURL() (string, error) {
-	node, err := data.SelectRpcNode(mdb.NetworkSolana, mdb.RpcNodeTypeHttp)
+	node, err := resolveSolanaRpcNode()
 	if err != nil {
 		return "", err
 	}
+	rpcURL := strings.TrimSpace(node.Url)
+	return rpcURL, nil
+}
+
+func resolveSolanaRpcNode(excludeIDs ...uint64) (*mdb.RpcNode, error) {
+	node, err := data.SelectGeneralRpcNode(mdb.NetworkSolana, mdb.RpcNodeTypeHttp, excludeIDs...)
+	if err != nil {
+		return nil, err
+	}
 	if node == nil || node.ID == 0 {
-		return "", fmt.Errorf("no enabled %s %s RPC node configured in rpc_nodes", mdb.NetworkSolana, mdb.RpcNodeTypeHttp)
+		return nil, fmt.Errorf("no enabled %s %s RPC node configured in rpc_nodes", mdb.NetworkSolana, mdb.RpcNodeTypeHttp)
 	}
 	rpcURL := strings.TrimSpace(node.Url)
 	if rpcURL == "" {
-		return "", fmt.Errorf("rpc_nodes id=%d has empty url", node.ID)
+		return nil, fmt.Errorf("rpc_nodes id=%d has empty url", node.ID)
 	}
-	return rpcURL, nil
+	node.Url = rpcURL
+	return node, nil
 }
 
 // SolRetryClient 发送 Solana JSON-RPC 请求，自动重试
 func SolRetryClient(method string, params []interface{}) ([]byte, error) {
+	tried := make([]uint64, 0, 3)
+	var lastErr error
+	for attempts := 0; attempts < 3; attempts++ {
+		node, err := resolveSolanaRpcNode(tried...)
+		if err != nil {
+			if lastErr != nil {
+				return nil, lastErr
+			}
+			return nil, err
+		}
+		if len(tried) > 0 {
+			log.Sugar.Warnf("[SOL] trying alternate RPC node method=%s node=%s", method, data.RpcNodeLogLabel(*node))
+		}
+
+		body, err := solRetryClientWithURL(node.Url, method, params)
+		if err == nil {
+			data.RecordRpcNodeSuccess(node.ID)
+			return body, nil
+		}
+
+		lastErr = err
+		failures, cooling := data.RecordRpcNodeFailure(node.ID)
+		nodeLabel := data.RpcNodeLogLabel(*node)
+		if !cooling {
+			log.Sugar.Warnf("[SOL] RPC node failed method=%s node=%s failures=%d/%d", method, nodeLabel, failures, data.RpcFailoverThreshold)
+			return nil, err
+		}
+		log.Sugar.Warnf("[SOL] RPC node reached fail threshold method=%s node=%s, trying another node", method, nodeLabel)
+		tried = append(tried, node.ID)
+	}
+	return nil, lastErr
+}
+
+func solRetryClientWithURL(rpcUrl string, method string, params []interface{}) ([]byte, error) {
+	return solRetryClientWithURLHeaders(rpcUrl, method, params, nil)
+}
+
+func solRetryClientWithURLHeaders(rpcUrl string, method string, params []interface{}, headers http.Header) ([]byte, error) {
 	client := resty.New()
-	client.SetRetryCount(5)
+	client.SetRetryCount(solRPCRetryCount)
-	client.SetRetryWaitTime(2 * time.Second)
+	client.SetRetryWaitTime(solRPCRetryWait)
-	client.SetRetryMaxWaitTime(10 * time.Second)
+	client.SetRetryMaxWaitTime(solRPCRetryMaxWait)
 	client.AddRetryCondition(func(r *resty.Response, err error) bool {
 		if err != nil {
 			return true
@@ -312,25 +378,35 @@ func SolRetryClient(method string, params []interface{}) ([]byte, error) {
 		return false
 	})
 
-	rpcUrl, err := resolveSolanaRpcURL()
+	req := client.R().SetHeader("Content-Type", "application/json")
-	if err != nil {
+	for key, values := range headers {
-		return nil, err
+		for _, value := range values {
+			req.SetHeader(key, value)
+		}
 	}
 
-	resp, err := client.R().
+	resp, err := req.SetBody(map[string]interface{}{
-		SetHeader("Content-Type", "application/json").
+		"jsonrpc": "2.0",
-		SetBody(map[string]interface{}{
+		"id":      1,
-			"jsonrpc": "2.0",
+		"method":  method,
-			"id":      1,
+		"params":  params,
-			"method":  method,
+	}).
-			"params":  params,
-		}).
 		Post(rpcUrl)
 	if err != nil {
 		return nil, err
 	}
+	if resp.StatusCode() >= http.StatusBadRequest {
+		return nil, fmt.Errorf("solana rpc HTTP %d", resp.StatusCode())
+	}
 
 	respBody := resp.Body()
+	if errValue := gjson.GetBytes(respBody, "error"); errValue.Exists() && errValue.Type != gjson.Null {
+		code := errValue.Get("code").String()
+		if code == "" {
+			code = "unknown"
+		}
+		return nil, fmt.Errorf("solana rpc error code=%s", code)
+	}
 
 	return respBody, nil
 }
@@ -390,6 +466,33 @@ func SolGetTransaction(sig string) ([]byte, error) {
 	return txData, nil
 }
 
+func solGetTransactionWithURL(rpcURL string, sig string) ([]byte, error) {
+	return solGetTransactionWithURLHeaders(rpcURL, sig, nil)
+}
+
+func solGetTransactionWithURLHeaders(rpcURL string, sig string, headers http.Header) ([]byte, error) {
+	txData, err := solRetryClientWithURLHeaders(rpcURL, "getTransaction", []interface{}{
+		sig,
+		map[string]interface{}{
+			"encoding":                       "jsonParsed",
+			"commitment":                     "confirmed",
+			"maxSupportedTransactionVersion": 0, // suport
+		},
+	}, headers)
+	if err != nil {
+		log.Sugar.Errorf("SolRetryClient failed: %v", err)
+		return nil, err
+	}
+
+	errField := gjson.GetBytes(txData, "result.meta.err")
+	if errField.Exists() && errField.Type != gjson.Null {
+		log.Sugar.Warnf("Transaction failed: %v", errField.String())
+		return nil, fmt.Errorf("transaction failed: %s", errField.String())
+	}
+
+	return txData, nil
+}
+
 // isTransferToAddress 判断转账目标是否为指定钱包地址
 func isTransferToAddress(transfer *TransferInfo, targetAddress string) bool {
 	// Native SOL transfer - check destination directly
@@ -471,7 +574,7 @@ const (
 	Token2022ProgramID = "TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb"
 )
 
-// ADJustAmount 将链上原始金额转为可读金额（除以 10^decimals，保留 2 位小数）
+// ADJustAmount 将链上原始金额转为可读金额（除以 10^decimals，保留到系统支持的最大匹配精度）
 func ADJustAmount(amount uint64, decimals int) float64 {
 	if amount == 0 {
 		return 0
@@ -480,8 +583,7 @@ func ADJustAmount(amount uint64, decimals int) float64 {
 	// 10^decimals
 	decimalDivisor := decimal.New(1, int32(decimals))
 	adjustedAmount := decimalAmount.Div(decimalDivisor)
-	// Round to 2 decimal places
+	return math.MustParsePrecFloat64(adjustedAmount.InexactFloat64(), data.MaxAmountPrecision)
-	return math.MustParsePrecFloat64(adjustedAmount.InexactFloat64(), 2)
 }
 
 func MatchUsdtAtaAddress(address string, ataTo string) bool {

src/model/service/sol_task_test.go

@@ -2,12 +2,19 @@ package service
 
 import (
 	"encoding/json"
+	"errors"
+	"net/http"
+	"net/http/httptest"
 	"os"
+	"sync"
 	"testing"
+	"time"
 
 	"github.com/GMWalletApp/epusdt/internal/testutil"
 	"github.com/GMWalletApp/epusdt/model/dao"
+	"github.com/GMWalletApp/epusdt/model/data"
 	"github.com/GMWalletApp/epusdt/model/mdb"
+	"github.com/GMWalletApp/epusdt/model/request"
 	"github.com/tidwall/gjson"
 )
 
@@ -21,6 +28,7 @@ func setupSolanaRPCNode(t *testing.T, url string) func() {
 		Type:    mdb.RpcNodeTypeHttp,
 		Weight:  1,
 		Enabled: true,
+		Purpose: mdb.RpcNodePurposeGeneral,
 		Status:  mdb.RpcNodeStatusOk,
 	}
 	if err := dao.Mdb.Create(node).Error; err != nil {
@@ -52,6 +60,396 @@ func TestResolveSolanaRpcURLWithRow(t *testing.T) {
 	}
 }
 
+func TestResolveSolanaRpcURLIgnoresManualVerifyOnly(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	if err := dao.Mdb.Create(&mdb.RpcNode{
+		Network: mdb.NetworkSolana,
+		Url:     "https://paid-solana.example.com",
+		Type:    mdb.RpcNodeTypeHttp,
+		Weight:  100,
+		Enabled: true,
+		Purpose: mdb.RpcNodePurposeManualVerify,
+		Status:  mdb.RpcNodeStatusOk,
+	}).Error; err != nil {
+		t.Fatalf("seed manual rpc_node: %v", err)
+	}
+
+	if got, err := resolveSolanaRpcURL(); err == nil {
+		t.Fatalf("resolveSolanaRpcURL() = %q, nil; want error", got)
+	}
+}
+
+func TestResolveSolanaRpcURLUsesGeneralWhenManualVerifyExists(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	rows := []mdb.RpcNode{
+		{Network: mdb.NetworkSolana, Url: "https://paid-solana.example.com", Type: mdb.RpcNodeTypeHttp, Weight: 100, Enabled: true, Purpose: mdb.RpcNodePurposeManualVerify, Status: mdb.RpcNodeStatusOk},
+		{Network: mdb.NetworkSolana, Url: " https://general-solana.example.com ", Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+	}
+	if err := dao.Mdb.Create(&rows).Error; err != nil {
+		t.Fatalf("seed rpc_nodes: %v", err)
+	}
+
+	got, err := resolveSolanaRpcURL()
+	if err != nil {
+		t.Fatalf("resolveSolanaRpcURL(): %v", err)
+	}
+	if got != "https://general-solana.example.com" {
+		t.Fatalf("resolveSolanaRpcURL() = %q, want general node", got)
+	}
+}
+
+func TestSolRetryClientSwitchesAfterFailureThreshold(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+	data.ResetRpcFailoverForTest()
+	t.Cleanup(data.ResetRpcFailoverForTest)
+	oldRetryCount := solRPCRetryCount
+	oldRetryWait := solRPCRetryWait
+	oldRetryMaxWait := solRPCRetryMaxWait
+	solRPCRetryCount = 0
+	solRPCRetryWait = time.Millisecond
+	solRPCRetryMaxWait = time.Millisecond
+	t.Cleanup(func() {
+		solRPCRetryCount = oldRetryCount
+		solRPCRetryWait = oldRetryWait
+		solRPCRetryMaxWait = oldRetryMaxWait
+	})
+
+	var primaryCalls int
+	primary := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		primaryCalls++
+		http.Error(w, "temporary", http.StatusBadGateway)
+	}))
+	defer primary.Close()
+
+	var backupCalls int
+	backup := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		backupCalls++
+		w.Header().Set("Content-Type", "application/json")
+		_ = json.NewEncoder(w).Encode(map[string]interface{}{
+			"jsonrpc": "2.0",
+			"id":      1,
+			"result":  "ok",
+		})
+	}))
+	defer backup.Close()
+
+	rows := []mdb.RpcNode{
+		{Network: mdb.NetworkSolana, Url: primary.URL, Type: mdb.RpcNodeTypeHttp, Weight: 100, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+		{Network: mdb.NetworkSolana, Url: backup.URL, Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+	}
+	if err := dao.Mdb.Create(&rows).Error; err != nil {
+		t.Fatalf("seed rpc_nodes: %v", err)
+	}
+
+	for i := 0; i < data.RpcFailoverThreshold-1; i++ {
+		if _, err := SolRetryClient("getHealth", nil); err == nil {
+			t.Fatalf("SolRetryClient attempt %d unexpectedly succeeded", i+1)
+		}
+	}
+	if backupCalls != 0 {
+		t.Fatalf("backup calls before threshold = %d, want 0", backupCalls)
+	}
+
+	body, err := SolRetryClient("getHealth", nil)
+	if err != nil {
+		t.Fatalf("SolRetryClient after threshold: %v", err)
+	}
+	if gjson.GetBytes(body, "result").String() != "ok" {
+		t.Fatalf("response body = %s, want result ok", string(body))
+	}
+	if backupCalls == 0 {
+		t.Fatal("backup RPC was not called after threshold")
+	}
+	if primaryCalls == 0 {
+		t.Fatal("primary RPC was not called")
+	}
+}
+
+func TestSolRetryClientCountsJSONRPCErrorAsNodeFailure(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+	data.ResetRpcFailoverForTest()
+	t.Cleanup(data.ResetRpcFailoverForTest)
+	oldRetryCount := solRPCRetryCount
+	oldRetryWait := solRPCRetryWait
+	oldRetryMaxWait := solRPCRetryMaxWait
+	solRPCRetryCount = 0
+	solRPCRetryWait = time.Millisecond
+	solRPCRetryMaxWait = time.Millisecond
+	t.Cleanup(func() {
+		solRPCRetryCount = oldRetryCount
+		solRPCRetryWait = oldRetryWait
+		solRPCRetryMaxWait = oldRetryMaxWait
+	})
+
+	var primaryCalls int
+	primary := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		primaryCalls++
+		w.Header().Set("Content-Type", "application/json")
+		_ = json.NewEncoder(w).Encode(map[string]interface{}{
+			"jsonrpc": "2.0",
+			"id":      1,
+			"error": map[string]interface{}{
+				"code": -32005,
+			},
+		})
+	}))
+	defer primary.Close()
+
+	var backupCalls int
+	backup := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		backupCalls++
+		w.Header().Set("Content-Type", "application/json")
+		_ = json.NewEncoder(w).Encode(map[string]interface{}{
+			"jsonrpc": "2.0",
+			"id":      1,
+			"result":  "ok",
+		})
+	}))
+	defer backup.Close()
+
+	rows := []mdb.RpcNode{
+		{Network: mdb.NetworkSolana, Url: primary.URL, Type: mdb.RpcNodeTypeHttp, Weight: 100, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+		{Network: mdb.NetworkSolana, Url: backup.URL, Type: mdb.RpcNodeTypeHttp, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+	}
+	if err := dao.Mdb.Create(&rows).Error; err != nil {
+		t.Fatalf("seed rpc_nodes: %v", err)
+	}
+
+	for i := 0; i < data.RpcFailoverThreshold-1; i++ {
+		if _, err := SolRetryClient("getHealth", nil); err == nil {
+			t.Fatalf("SolRetryClient attempt %d unexpectedly succeeded", i+1)
+		}
+	}
+	body, err := SolRetryClient("getHealth", nil)
+	if err != nil {
+		t.Fatalf("SolRetryClient after JSON-RPC error threshold: %v", err)
+	}
+	if gjson.GetBytes(body, "result").String() != "ok" {
+		t.Fatalf("response body = %s, want result ok", string(body))
+	}
+	if primaryCalls < data.RpcFailoverThreshold {
+		t.Fatalf("primary calls = %d, want at least threshold", primaryCalls)
+	}
+	if backupCalls == 0 {
+		t.Fatal("backup RPC was not called after JSON-RPC error threshold")
+	}
+}
+
+func TestSolRetryClientWithURLHeadersForwardsCustomHeaders(t *testing.T) {
+	oldRetryCount := solRPCRetryCount
+	oldRetryWait := solRPCRetryWait
+	oldRetryMaxWait := solRPCRetryMaxWait
+	solRPCRetryCount = 0
+	solRPCRetryWait = time.Millisecond
+	solRPCRetryMaxWait = time.Millisecond
+	t.Cleanup(func() {
+		solRPCRetryCount = oldRetryCount
+		solRPCRetryWait = oldRetryWait
+		solRPCRetryMaxWait = oldRetryMaxWait
+	})
+
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if got := r.Header.Get("X-Test-Header"); got != "test-value" {
+			t.Errorf("X-Test-Header = %q, want test-value", got)
+			http.Error(w, "bad custom header", http.StatusBadRequest)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_ = json.NewEncoder(w).Encode(map[string]interface{}{
+			"jsonrpc": "2.0",
+			"id":      1,
+			"result":  "ok",
+		})
+	}))
+	defer server.Close()
+
+	headers := http.Header{}
+	headers.Set("X-Test-Header", "test-value")
+	body, err := solRetryClientWithURLHeaders(server.URL, "getHealth", nil, headers)
+	if err != nil {
+		t.Fatalf("solRetryClientWithURLHeaders(): %v", err)
+	}
+	if gjson.GetBytes(body, "result").String() != "ok" {
+		t.Fatalf("response body = %s, want result ok", string(body))
+	}
+}
+
+func TestSolRetryClientWithURLDoesNotForwardUserIPByDefault(t *testing.T) {
+	oldRetryCount := solRPCRetryCount
+	oldRetryWait := solRPCRetryWait
+	oldRetryMaxWait := solRPCRetryMaxWait
+	solRPCRetryCount = 0
+	solRPCRetryWait = time.Millisecond
+	solRPCRetryMaxWait = time.Millisecond
+	t.Cleanup(func() {
+		solRPCRetryCount = oldRetryCount
+		solRPCRetryWait = oldRetryWait
+		solRPCRetryMaxWait = oldRetryMaxWait
+	})
+
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if got := r.Header.Get("X-USER-IP"); got != "" {
+			t.Errorf("X-USER-IP header = %q, want empty", got)
+			http.Error(w, "unexpected user ip header", http.StatusBadRequest)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_ = json.NewEncoder(w).Encode(map[string]interface{}{
+			"jsonrpc": "2.0",
+			"id":      1,
+			"result":  "ok",
+		})
+	}))
+	defer server.Close()
+
+	body, err := solRetryClientWithURL(server.URL, "getHealth", nil)
+	if err != nil {
+		t.Fatalf("solRetryClientWithURL(): %v", err)
+	}
+	if gjson.GetBytes(body, "result").String() != "ok" {
+		t.Fatalf("response body = %s, want result ok", string(body))
+	}
+}
+
+func TestSolCallBackDoesNotCacheSignatureAfterRetryableOrderProcessingError(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+	clearProcessedSignatures()
+	t.Cleanup(clearProcessedSignatures)
+
+	const (
+		address = "2uFTf9TZ8gd7Kg6hkb79TxfaeNpaAgpJ8uVHguv2Yweu"
+		sig     = "retryable-sol-signature"
+		tradeID = "sol-retryable-order-001"
+		amount  = 1.23
+	)
+	blockTime := time.Now().Add(time.Minute).Unix()
+
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		var rpcReq struct {
+			Method string `json:"method"`
+		}
+		if err := json.NewDecoder(r.Body).Decode(&rpcReq); err != nil {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		w.Header().Set("Content-Type", "application/json")
+		switch rpcReq.Method {
+		case "getSignaturesForAddress":
+			_ = json.NewEncoder(w).Encode(map[string]interface{}{
+				"jsonrpc": "2.0",
+				"id":      1,
+				"result": []map[string]interface{}{
+					{
+						"signature": sig,
+						"slot":      1,
+						"err":       nil,
+						"blockTime": blockTime,
+					},
+				},
+			})
+		case "getTransaction":
+			_ = json.NewEncoder(w).Encode(map[string]interface{}{
+				"jsonrpc": "2.0",
+				"id":      1,
+				"result": map[string]interface{}{
+					"blockTime": blockTime,
+					"meta":      map[string]interface{}{"err": nil},
+					"transaction": map[string]interface{}{
+						"message": map[string]interface{}{
+							"instructions": []map[string]interface{}{
+								{
+									"programId": SystemProgramID,
+									"parsed": map[string]interface{}{
+										"type": "transfer",
+										"info": map[string]interface{}{
+											"source":      "source-wallet",
+											"destination": address,
+											"lamports":    1_230_000_000,
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			})
+		default:
+			http.Error(w, "unexpected method "+rpcReq.Method, http.StatusBadRequest)
+		}
+	}))
+	defer server.Close()
+
+	if err := dao.Mdb.Create(&mdb.RpcNode{
+		Network: mdb.NetworkSolana,
+		Url:     server.URL,
+		Type:    mdb.RpcNodeTypeHttp,
+		Weight:  1,
+		Enabled: true,
+		Status:  mdb.RpcNodeStatusOk,
+	}).Error; err != nil {
+		t.Fatalf("seed solana rpc_node: %v", err)
+	}
+	if err := dao.Mdb.Create(&mdb.ChainToken{
+		Network:         mdb.NetworkSolana,
+		Symbol:          "SOL",
+		ContractAddress: "",
+		Decimals:        SOL_Decimals,
+		Enabled:         true,
+	}).Error; err != nil {
+		t.Fatalf("seed SOL chain token: %v", err)
+	}
+	order := &mdb.Orders{
+		TradeId:        tradeID,
+		OrderId:        "merchant-sol-retryable-001",
+		Amount:         100,
+		Currency:       "CNY",
+		ActualAmount:   amount,
+		ReceiveAddress: address,
+		Token:          "SOL",
+		Network:        mdb.NetworkSolana,
+		Status:         mdb.StatusWaitPay,
+	}
+	if err := dao.Mdb.Create(order).Error; err != nil {
+		t.Fatalf("seed order: %v", err)
+	}
+	if err := data.LockTransaction(mdb.NetworkSolana, address, "SOL", tradeID, amount, time.Hour); err != nil {
+		t.Fatalf("lock transaction: %v", err)
+	}
+
+	oldProcessSolanaOrder := processSolanaOrder
+	calls := 0
+	processSolanaOrder = func(req *request.OrderProcessingRequest) error {
+		calls++
+		if req.TradeId != tradeID {
+			t.Fatalf("order processing trade_id = %q, want %q", req.TradeId, tradeID)
+		}
+		return errors.New("temporary database error")
+	}
+	t.Cleanup(func() {
+		processSolanaOrder = oldProcessSolanaOrder
+	})
+
+	var wg sync.WaitGroup
+	wg.Add(1)
+	SolCallBack(address, &wg)
+	wg.Wait()
+
+	if calls != 1 {
+		t.Fatalf("order processing calls = %d, want 1", calls)
+	}
+	if _, ok := gProcessedSignatures.Load(sig); ok {
+		t.Fatalf("signature %s was cached after retryable order processing error", sig)
+	}
+}
+
 func TestSolClientHealthy(t *testing.T) {
 	requireSolanaIntegration(t)
 
@@ -78,6 +476,13 @@ func TestSolClientHealthy(t *testing.T) {
 	}
 }
 
+func clearProcessedSignatures() {
+	gProcessedSignatures.Range(func(key, value interface{}) bool {
+		gProcessedSignatures.Delete(key)
+		return true
+	})
+}
+
 func TestSolClientGetSignaturesForAddress(t *testing.T) {
 	requireSolanaIntegration(t)
 
@@ -236,7 +641,7 @@ func TestAdjustAmount(t *testing.T) {
 			name:     "USDT amount (6 decimals)",
 			amount:   123456789,
 			decimals: 6,
-			want:     123.46,
+			want:     123.456789,
 		},
 		{
 			name:     "USDC amount (6 decimals)",
@@ -260,7 +665,7 @@ func TestAdjustAmount(t *testing.T) {
 			name:     "Small amount",
 			amount:   1,
 			decimals: 6,
-			want:     0.0,
+			want:     0.000001,
 		},
 	}
 

src/model/service/task_service.go

@@ -1,337 +1,186 @@
 package service
 
 import (
-	"encoding/hex"
 	"errors"
 	"fmt"
 	"math/big"
-	"net/http"
 	"strings"
-	"sync"
 
-	tron "github.com/GMWalletApp/epusdt/crypto"
 	"github.com/GMWalletApp/epusdt/model/data"
 	"github.com/GMWalletApp/epusdt/model/mdb"
 	"github.com/GMWalletApp/epusdt/model/request"
 	"github.com/GMWalletApp/epusdt/notify"
 	"github.com/GMWalletApp/epusdt/util/constant"
-	"github.com/GMWalletApp/epusdt/util/http_client"
 	"github.com/GMWalletApp/epusdt/util/log"
 	"github.com/GMWalletApp/epusdt/util/math"
-	"github.com/dromara/carbon/v2"
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/gookit/goutil/stdutil"
 	"github.com/shopspring/decimal"
-	"github.com/tidwall/gjson"
 )
 
-// resolveTronNode returns (baseURL, apiKey) for the TRON HTTP RPC node.
-// It reads the first healthy (or any enabled) row from the rpc_nodes table.
 func resolveTronNode() (string, string, error) {
-	node, err := data.SelectRpcNode(mdb.NetworkTron, mdb.RpcNodeTypeHttp)
+	node, err := ResolveTronRpcNode()
 	if err != nil {
 		return "", "", err
 	}
-	if node == nil || node.ID == 0 {
-		return "", "", fmt.Errorf("no enabled %s %s RPC node configured in rpc_nodes", mdb.NetworkTron, mdb.RpcNodeTypeHttp)
-	}
 	rpcURL := strings.TrimRight(strings.TrimSpace(node.Url), "/")
-	if rpcURL == "" {
-		return "", "", fmt.Errorf("rpc_nodes id=%d has empty url", node.ID)
-	}
 	return rpcURL, node.ApiKey, nil
 }
 
-func Trc20CallBack(address string, wg *sync.WaitGroup) {
+func ResolveTronRpcNode(excludeIDs ...uint64) (*mdb.RpcNode, error) {
-	defer wg.Done()
+	node, err := data.SelectGeneralRpcNode(mdb.NetworkTron, mdb.RpcNodeTypeHttp, excludeIDs...)
+	if err != nil {
+		return nil, err
+	}
+	if node == nil || node.ID == 0 {
+		return nil, fmt.Errorf("no enabled %s %s RPC node configured in rpc_nodes", mdb.NetworkTron, mdb.RpcNodeTypeHttp)
+	}
+	rpcURL := strings.TrimRight(strings.TrimSpace(node.Url), "/")
+	if rpcURL == "" {
+		return nil, fmt.Errorf("rpc_nodes id=%d has empty url", node.ID)
+	}
+	node.Url = rpcURL
+	return node, nil
+}
+
+func ResolveTronNode() (string, string, error) {
+	return resolveTronNode()
+}
+
+func TryProcessTronTRC20Transfer(token mdb.ChainToken, toAddr string, rawValue *big.Int, txHash string, blockTsMs int64) {
+	tokenSym := strings.ToUpper(strings.TrimSpace(token.Symbol))
 	defer func() {
 		if err := recover(); err != nil {
-			log.Sugar.Error(err)
+			log.Sugar.Errorf("[TRC20-%s][%s] TryProcessTronTRC20Transfer panic: %v", tokenSym, toAddr, err)
 		}
 	}()
 
-	var innerWg sync.WaitGroup
+	addr := strings.TrimSpace(toAddr)
-	innerWg.Add(2)
+	if tokenSym == "" || addr == "" || rawValue == nil || rawValue.Sign() <= 0 {
-	go checkTrxTransfers(address, &innerWg)
+		return
-	go checkTrc20Transfers(address, &innerWg)
+	}
-	innerWg.Wait()
+	decimals := token.Decimals
+	if decimals < 0 {
+		decimals = 0
+	}
+
+	decimalQuant := decimal.NewFromBigInt(rawValue, 0)
+	amount := math.MustParsePrecFloat64(decimalQuant.Div(decimal.New(1, int32(decimals))).InexactFloat64(), data.MaxAmountPrecision)
+	if amount <= 0 {
+		return
+	}
+	if token.MinAmount > 0 && amount < token.MinAmount {
+		log.Sugar.Debugf("[TRC20-%s][%s] skip below min amount hash=%s amount=%.2f min=%.2f", tokenSym, addr, txHash, amount, token.MinAmount)
+		return
+	}
+
+	tradeID, err := data.GetTradeIdByWalletAddressAndAmountAndToken(mdb.NetworkTron, addr, tokenSym, amount)
+	if err != nil {
+		log.Sugar.Warnf("[TRC20-%s][%s] lock lookup: %v", tokenSym, addr, err)
+		return
+	}
+	if tradeID == "" {
+		log.Sugar.Debugf("[TRC20-%s][%s] skip unmatched tx hash=%s amount=%.2f", tokenSym, addr, txHash, amount)
+		return
+	}
+
+	order, err := data.GetOrderInfoByTradeId(tradeID)
+	if err != nil {
+		log.Sugar.Warnf("[TRC20-%s][%s] load order: %v", tokenSym, addr, err)
+		return
+	}
+	if strings.ToLower(strings.TrimSpace(order.Network)) != mdb.NetworkTron {
+		log.Sugar.Warnf("[TRC20-%s][%s] skip trade_id=%s network=%q", tokenSym, addr, tradeID, order.Network)
+		return
+	}
+	if strings.ToUpper(strings.TrimSpace(order.Token)) != tokenSym {
+		log.Sugar.Warnf("[TRC20-%s][%s] skip trade_id=%s token mismatch order=%s", tokenSym, addr, tradeID, order.Token)
+		return
+	}
+	if blockTsMs > 0 && blockTsMs < order.CreatedAt.TimestampMilli() {
+		log.Sugar.Warnf("[TRC20-%s][%s] skip tx %s because block time %d is before order create time %d", tokenSym, addr, txHash, blockTsMs, order.CreatedAt.TimestampMilli())
+		return
+	}
+
+	req := &request.OrderProcessingRequest{
+		ReceiveAddress:     addr,
+		Token:              tokenSym,
+		Network:            mdb.NetworkTron,
+		TradeId:            tradeID,
+		Amount:             amount,
+		BlockTransactionId: txHash,
+	}
+	err = OrderProcessing(req)
+	if err != nil {
+		if errors.Is(err, constant.OrderBlockAlreadyProcess) || errors.Is(err, constant.OrderStatusConflict) {
+			log.Sugar.Infof("[TRC20-%s][%s] skip resolved transfer trade_id=%s hash=%s err=%v", tokenSym, addr, tradeID, txHash, err)
+			return
+		}
+		log.Sugar.Errorf("[TRC20-%s][%s] OrderProcessing trade_id=%s hash=%s: %v", tokenSym, addr, tradeID, txHash, err)
+		return
+	}
+
+	sendPaymentNotification(order)
+	log.Sugar.Infof("[TRC20-%s][%s] payment processed trade_id=%s hash=%s", tokenSym, addr, tradeID, txHash)
 }
 
-func checkTrxTransfers(address string, wg *sync.WaitGroup) {
+func TryProcessTronTRXTransfer(toAddr string, rawSun int64, txHash string, blockTsMs int64) {
-	defer wg.Done()
+	defer func() {
+		if err := recover(); err != nil {
+			log.Sugar.Errorf("[TRX][%s] TryProcessTronTRXTransfer panic: %v", toAddr, err)
+		}
+	}()
 
-	// Native TRX is gated by a chain_tokens row with empty
+	addr := strings.TrimSpace(toAddr)
-	// contract_address and symbol=TRX. Admin can disable this row to
+	if addr == "" || rawSun <= 0 {
-	// stop scanning native transfers without touching the chain toggle.
+		return
-	trxCfg, err := data.GetEnabledChainTokenBySymbol(mdb.NetworkTron, "TRX")
+	}
+
+	decimalQuant := decimal.NewFromInt(rawSun)
+	amount := math.MustParsePrecFloat64(decimalQuant.Div(decimal.NewFromInt(1_000_000)).InexactFloat64(), data.MaxAmountPrecision)
+	if amount <= 0 {
+		return
+	}
+
+	tradeID, err := data.GetTradeIdByWalletAddressAndAmountAndToken(mdb.NetworkTron, addr, "TRX", amount)
 	if err != nil {
-		log.Sugar.Errorf("[TRX][%s] load chain_tokens err=%v", address, err)
+		log.Sugar.Warnf("[TRX][%s] lock lookup: %v", addr, err)
 		return
 	}
-	if trxCfg == nil || trxCfg.ID == 0 {
+	if tradeID == "" {
-		log.Sugar.Debugf("[TRX][%s] native TRX disabled in chain_tokens, skipping", address)
+		log.Sugar.Debugf("[TRX][%s] skip unmatched tx hash=%s amount=%.2f", addr, txHash, amount)
 		return
 	}
-	trxDecimals := trxCfg.Decimals
-	if trxDecimals <= 0 {
-		trxDecimals = 6
-	}
 
-	client := http_client.GetHttpClient()
+	order, err := data.GetOrderInfoByTradeId(tradeID)
-	startTime := carbon.Now().AddHours(-24).TimestampMilli()
-	endTime := carbon.Now().TimestampMilli()
-	tronBaseURL, tronAPIKey, err := resolveTronNode()
 	if err != nil {
-		log.Sugar.Errorf("[TRX][%s] resolve rpc_nodes err=%v", address, err)
+		log.Sugar.Warnf("[TRX][%s] load order: %v", addr, err)
+		return
+	}
+	if blockTsMs > 0 && blockTsMs < order.CreatedAt.TimestampMilli() {
+		log.Sugar.Warnf("[TRX][%s] skip tx %s because block time %d is before order create time %d", addr, txHash, blockTsMs, order.CreatedAt.TimestampMilli())
 		return
 	}
-	url := fmt.Sprintf("%s/v1/accounts/%s/transactions", tronBaseURL, address)
 
-	resp, err := client.R().SetQueryParams(map[string]string{
+	req := &request.OrderProcessingRequest{
-		"order_by":      "block_timestamp,desc",
+		ReceiveAddress:     addr,
-		"limit":         "100",
+		Token:              "TRX",
-		"only_to":       "true",
+		Network:            mdb.NetworkTron,
-		"min_timestamp": stdutil.ToString(startTime),
+		TradeId:            tradeID,
-		"max_timestamp": stdutil.ToString(endTime),
+		Amount:             amount,
-	}).SetHeader("TRON-PRO-API-KEY", tronAPIKey).Get(url)
+		BlockTransactionId: txHash,
+	}
+	err = OrderProcessing(req)
 	if err != nil {
-		log.Sugar.Errorf("[TRX][%s] HTTP request failed: %v", address, err)
+		if errors.Is(err, constant.OrderBlockAlreadyProcess) || errors.Is(err, constant.OrderStatusConflict) {
-		return
+			log.Sugar.Infof("[TRX][%s] skip resolved transfer trade_id=%s hash=%s err=%v", addr, tradeID, txHash, err)
-	}
+			return
-	if resp.StatusCode() != http.StatusOK {
+		}
-		log.Sugar.Errorf("[TRX][%s] API returned status %d", address, resp.StatusCode())
+		log.Sugar.Errorf("[TRX][%s] OrderProcessing trade_id=%s hash=%s: %v", addr, tradeID, txHash, err)
 		return
 	}
 
-	success := gjson.GetBytes(resp.Body(), "success").Bool()
+	sendPaymentNotification(order)
-	if !success {
+	log.Sugar.Infof("[TRX][%s] payment processed trade_id=%s hash=%s", addr, tradeID, txHash)
-		log.Sugar.Errorf("[TRX][%s] API response indicates failure", address)
-		return
-	}
-
-	transfers := gjson.GetBytes(resp.Body(), "data").Array()
-	if len(transfers) == 0 {
-		log.Sugar.Debugf("[TRX][%s] no transfer records found", address)
-		return
-	}
-	log.Sugar.Debugf("[TRX][%s] fetched %d transfer records", address, len(transfers))
-
-	for i, transfer := range transfers {
-		if transfer.Get("raw_data.contract.0.type").String() != "TransferContract" {
-			continue
-		}
-		if transfer.Get("ret.0.contractRet").String() != "SUCCESS" {
-			continue
-		}
-
-		toAddressHex := transfer.Get("raw_data.contract.0.parameter.value.to_address").String()
-		toBytes, err := hex.DecodeString(toAddressHex)
-		if err != nil {
-			log.Sugar.Errorf("[TRX][%s] decode address failed on tx #%d: %v", address, i, err)
-			continue
-		}
-		if tron.EncodeCheck(toBytes) != address {
-			continue
-		}
-
-		rawAmount := transfer.Get("raw_data.contract.0.parameter.value.amount").String()
-		decimalQuant, err := decimal.NewFromString(rawAmount)
-		if err != nil {
-			log.Sugar.Errorf("[TRX][%s] parse amount failed on tx #%d: %v", address, i, err)
-			continue
-		}
-		amount := math.MustParsePrecFloat64(decimalQuant.Div(decimal.New(1, int32(trxDecimals))).InexactFloat64(), 2)
-		if trxCfg.MinAmount > 0 && amount < trxCfg.MinAmount {
-			continue
-		}
-		if amount <= 0 {
-			continue
-		}
-
-		txID := transfer.Get("txID").String()
-		tradeID, err := data.GetTradeIdByWalletAddressAndAmountAndToken(mdb.NetworkTron, address, strings.ToUpper(strings.TrimSpace(trxCfg.Symbol)), amount)
-		if err != nil {
-			log.Sugar.Errorf("[TRX][%s] lookup trade_id failed hash=%s err=%v", address, txID, err)
-			continue
-		}
-		if tradeID == "" {
-			log.Sugar.Debugf("[TRX][%s] skip unmatched tx hash=%s amount=%.2f", address, txID, amount)
-			continue
-		}
-		log.Sugar.Infof("[TRX][%s] matched trade_id=%s hash=%s amount=%.2f", address, tradeID, txID, amount)
-
-		order, err := data.GetOrderInfoByTradeId(tradeID)
-		if err != nil {
-			log.Sugar.Errorf("[TRX][%s] get order failed trade_id=%s err=%v", address, tradeID, err)
-			continue
-		}
-		blockTimestamp := transfer.Get("block_timestamp").Int()
-		createTime := order.CreatedAt.TimestampMilli()
-		if blockTimestamp < createTime {
-			log.Sugar.Warnf("[TRX][%s] skip tx %s because block time %d is before order create time %d", address, txID, blockTimestamp, createTime)
-			continue
-		}
-
-		req := &request.OrderProcessingRequest{
-			ReceiveAddress:     address,
-			Token:              strings.ToUpper(strings.TrimSpace(trxCfg.Symbol)),
-			Network:            mdb.NetworkTron,
-			TradeId:            tradeID,
-			Amount:             amount,
-			BlockTransactionId: txID,
-		}
-		err = OrderProcessing(req)
-		if err != nil {
-			if errors.Is(err, constant.OrderBlockAlreadyProcess) || errors.Is(err, constant.OrderStatusConflict) {
-				log.Sugar.Infof("[TRX][%s] skip resolved transfer trade_id=%s hash=%s err=%v", address, tradeID, txID, err)
-				continue
-			}
-			log.Sugar.Errorf("[TRX][%s] order processing failed trade_id=%s hash=%s err=%v", address, tradeID, txID, err)
-			continue
-		}
-
-		sendPaymentNotification(order)
-		log.Sugar.Infof("[TRX][%s] payment processed trade_id=%s hash=%s", address, tradeID, txID)
-	}
-}
-
-func checkTrc20Transfers(address string, wg *sync.WaitGroup) {
-	defer wg.Done()
-
-	// Build contract -> token map for the TRON network. If nothing is
-	// configured, skip — preserves the previous behavior of only watching
-	// admin-approved tokens.
-	tokens, err := data.ListEnabledChainTokensByNetwork(mdb.NetworkTron)
-	if err != nil {
-		log.Sugar.Errorf("[TRC20][%s] load chain_tokens err=%v", address, err)
-		return
-	}
-	if len(tokens) == 0 {
-		log.Sugar.Debugf("[TRC20][%s] no enabled chain_tokens, skipping", address)
-		return
-	}
-	contractTokens := make(map[string]*mdb.ChainToken, len(tokens))
-	for i := range tokens {
-		c := strings.TrimSpace(tokens[i].ContractAddress)
-		if c == "" {
-			continue
-		}
-		contractTokens[c] = &tokens[i]
-	}
-
-	client := http_client.GetHttpClient()
-	startTime := carbon.Now().AddHours(-24).TimestampMilli()
-	endTime := carbon.Now().TimestampMilli()
-	tronBaseURL, tronAPIKey, err := resolveTronNode()
-	if err != nil {
-		log.Sugar.Errorf("[TRC20][%s] resolve rpc_nodes err=%v", address, err)
-		return
-	}
-	url := fmt.Sprintf("%s/v1/accounts/%s/transactions/trc20", tronBaseURL, address)
-
-	resp, err := client.R().SetQueryParams(map[string]string{
-		"order_by":      "block_timestamp,desc",
-		"limit":         "100",
-		"only_to":       "true",
-		"min_timestamp": stdutil.ToString(startTime),
-		"max_timestamp": stdutil.ToString(endTime),
-	}).SetHeader("TRON-PRO-API-KEY", tronAPIKey).Get(url)
-	if err != nil {
-		log.Sugar.Errorf("[TRC20][%s] HTTP request failed: %v", address, err)
-		return
-	}
-	if resp.StatusCode() != http.StatusOK {
-		log.Sugar.Errorf("[TRC20][%s] API returned status %d", address, resp.StatusCode())
-		return
-	}
-
-	success := gjson.GetBytes(resp.Body(), "success").Bool()
-	if !success {
-		log.Sugar.Errorf("[TRC20][%s] API response indicates failure", address)
-		return
-	}
-
-	transfers := gjson.GetBytes(resp.Body(), "data").Array()
-	if len(transfers) == 0 {
-		log.Sugar.Debugf("[TRC20][%s] no transfer records found", address)
-		return
-	}
-	log.Sugar.Debugf("[TRC20][%s] fetched %d transfer records", address, len(transfers))
-
-	for i, transfer := range transfers {
-		contractAddr := transfer.Get("token_info.address").String()
-		cfg, ok := contractTokens[contractAddr]
-		if !ok {
-			continue
-		}
-		if transfer.Get("to").String() != address {
-			continue
-		}
-		tokenSym := strings.ToUpper(strings.TrimSpace(cfg.Symbol))
-
-		valueStr := transfer.Get("value").String()
-		decimalQuant, err := decimal.NewFromString(valueStr)
-		if err != nil {
-			log.Sugar.Errorf("[TRC20][%s] parse value failed on tx #%d: %v", address, i, err)
-			continue
-		}
-		tokenDecimals := transfer.Get("token_info.decimals").Int()
-		if tokenDecimals <= 0 {
-			tokenDecimals = int64(cfg.Decimals)
-		}
-		amount := math.MustParsePrecFloat64(decimalQuant.Div(decimal.New(1, int32(tokenDecimals))).InexactFloat64(), 2)
-		if cfg.MinAmount > 0 && amount < cfg.MinAmount {
-			continue
-		}
-		if amount <= 0 {
-			continue
-		}
-
-		txID := transfer.Get("transaction_id").String()
-		tradeID, err := data.GetTradeIdByWalletAddressAndAmountAndToken(mdb.NetworkTron, address, tokenSym, amount)
-		if err != nil {
-			log.Sugar.Errorf("[TRC20][%s] lookup trade_id failed hash=%s err=%v", address, txID, err)
-			continue
-		}
-		if tradeID == "" {
-			log.Sugar.Debugf("[TRC20][%s] skip unmatched %s tx hash=%s amount=%.2f", address, tokenSym, txID, amount)
-			continue
-		}
-		log.Sugar.Infof("[TRC20][%s] matched %s trade_id=%s hash=%s amount=%.2f", address, tokenSym, tradeID, txID, amount)
-
-		order, err := data.GetOrderInfoByTradeId(tradeID)
-		if err != nil {
-			log.Sugar.Errorf("[TRC20][%s] get order failed trade_id=%s err=%v", address, tradeID, err)
-			continue
-		}
-		blockTimestamp := transfer.Get("block_timestamp").Int()
-		createTime := order.CreatedAt.TimestampMilli()
-		if blockTimestamp < createTime {
-			log.Sugar.Warnf("[TRC20][%s] skip tx %s because block time %d is before order create time %d", address, txID, blockTimestamp, createTime)
-			continue
-		}
-
-		req := &request.OrderProcessingRequest{
-			ReceiveAddress:     address,
-			Token:              tokenSym,
-			Network:            mdb.NetworkTron,
-			TradeId:            tradeID,
-			Amount:             amount,
-			BlockTransactionId: txID,
-		}
-		err = OrderProcessing(req)
-		if err != nil {
-			if errors.Is(err, constant.OrderBlockAlreadyProcess) || errors.Is(err, constant.OrderStatusConflict) {
-				log.Sugar.Infof("[TRC20][%s] skip resolved transfer trade_id=%s hash=%s err=%v", address, tradeID, txID, err)
-				continue
-			}
-			log.Sugar.Errorf("[TRC20][%s] order processing failed trade_id=%s hash=%s err=%v", address, tradeID, txID, err)
-			continue
-		}
-
-		sendPaymentNotification(order)
-		log.Sugar.Infof("[TRC20][%s] payment processed trade_id=%s hash=%s", address, tradeID, txID)
-	}
 }
 
 func evmChainLogLabel(chainNetwork string) string {
@@ -349,9 +198,6 @@ func evmChainLogLabel(chainNetwork string) string {
 	}
 }
 
-// TryProcessEvmERC20Transfer 处理各 EVM 链上代币的 Transfer 入账。
-// 代币识别、符号和 decimals 全部从 chain_tokens 表动态查询 —
-// 管理后台新增 token 即可立即生效，无需代码改动。
 func TryProcessEvmERC20Transfer(chainNetwork string, contract common.Address, toAddr common.Address, rawValue *big.Int, txHash string, blockTsMs int64) {
 	defer func() {
 		if err := recover(); err != nil {
@@ -360,41 +206,41 @@ func TryProcessEvmERC20Transfer(chainNetwork string, contract common.Address, to
 	}()
 
 	net := evmChainLogLabel(chainNetwork)
-	token, err := data.GetEnabledChainTokenByContract(chainNetwork, contract.Hex())
+	tokenConfig, err := data.GetEnabledChainTokenByContract(chainNetwork, contract.Hex())
 	if err != nil {
-		log.Sugar.Warnf("[%s-WS] chain_tokens lookup err=%v contract=%s", net, err, contract.Hex())
+		log.Sugar.Warnf("[%s-WS] load chain token contract=%s: %v", net, contract.Hex(), err)
 		return
 	}
-	if token == nil || token.ID == 0 {
+	if tokenConfig == nil || tokenConfig.ID == 0 {
-		log.Sugar.Debugf("[%s-WS] skip unconfigured contract %s", net, contract.Hex())
+		log.Sugar.Warnf("[%s-WS] skip unconfigured contract %s", net, contract.Hex())
 		return
 	}
-	tokenSym := strings.ToUpper(strings.TrimSpace(token.Symbol))
+	tokenSym := strings.ToUpper(strings.TrimSpace(tokenConfig.Symbol))
 	if tokenSym == "" {
-		log.Sugar.Warnf("[%s-WS] chain_token id=%d has empty symbol", net, token.ID)
+		log.Sugar.Warnf("[%s-WS] skip contract %s with empty token symbol", net, contract.Hex())
 		return
 	}
-	decimals := token.Decimals
-	if decimals <= 0 {
-		decimals = 6
-	}
-
 	walletAddr := strings.ToLower(toAddr.Hex())
 	if rawValue == nil || rawValue.Sign() <= 0 {
 		log.Sugar.Infof("[%s-%s][%s] skip non-positive or nil amount", net, tokenSym, walletAddr)
 		return
 	}
-	divisor := decimal.New(1, int32(decimals))
+	decimals := tokenConfig.Decimals
-	decimalQuant := decimal.NewFromBigInt(rawValue, 0)
+	if decimals < 0 {
-	amount := math.MustParsePrecFloat64(decimalQuant.Div(divisor).InexactFloat64(), 2)
+		decimals = 0
-	if token.MinAmount > 0 && amount < token.MinAmount {
-		log.Sugar.Debugf("[%s-%s][%s] skip amount %.2f below min_amount %.2f", net, tokenSym, walletAddr, amount, token.MinAmount)
-		return
 	}
+	pow := decimal.New(1, int32(decimals))
+
+	decimalQuant := decimal.NewFromBigInt(rawValue, 0)
+	amount := math.MustParsePrecFloat64(decimalQuant.Div(pow).InexactFloat64(), data.MaxAmountPrecision)
 	if amount <= 0 {
 		log.Sugar.Warnf("[%s-%s][%s] skip non-positive amount %.2f", net, tokenSym, walletAddr, amount)
 		return
 	}
+	if tokenConfig.MinAmount > 0 && amount < tokenConfig.MinAmount {
+		log.Sugar.Debugf("[%s-%s][%s] skip below min amount hash=%s amount=%.2f min=%.2f", net, tokenSym, walletAddr, txHash, amount, tokenConfig.MinAmount)
+		return
+	}
 
 	log.Sugar.Debugf("[%s-%s][%s] processing transfer hash=%s amount=%.2f", net, tokenSym, walletAddr, txHash, amount)
 
@@ -422,8 +268,7 @@ func TryProcessEvmERC20Transfer(chainNetwork string, contract common.Address, to
 		return
 	}
 	if blockTsMs > 0 && blockTsMs < order.CreatedAt.TimestampMilli() {
-		log.Sugar.Warnf("[%s-%s][%s] skip tx %s because block_time_ms=%d is before order created_ms=%d",
+		log.Sugar.Warnf("[%s-%s][%s] skip tx %s because block time %d is before order create time %d", net, tokenSym, walletAddr, txHash, blockTsMs, order.CreatedAt.TimestampMilli())
-			net, tokenSym, walletAddr, txHash, blockTsMs, order.CreatedAt.TimestampMilli())
 		return
 	}
 
@@ -450,11 +295,25 @@ func TryProcessEvmERC20Transfer(chainNetwork string, contract common.Address, to
 }
 
 func sendPaymentNotification(order *mdb.Orders) {
+	if order == nil {
+		return
+	}
+	if strings.TrimSpace(order.TradeId) != "" {
+		latest, err := data.GetOrderInfoByTradeId(order.TradeId)
+		if err != nil {
+			log.Sugar.Warnf("[notify] reload order failed trade_id=%s err=%v", order.TradeId, err)
+		} else if latest != nil && latest.TradeId != "" {
+			order = latest
+		}
+	}
+
+	precision := data.GetAmountPrecision()
+	amountFormat := fmt.Sprintf("%%.%df", precision)
 	msg := fmt.Sprintf(
 		"🎉 <b>收款成功通知</b>\n\n"+
 			"💰 <b>金额信息</b>\n"+
-			"├ 订单金额：<code>%.2f %s</code>\n"+
+			"├ 订单金额：<code>"+amountFormat+" %s</code>\n"+
-			"└ 实际到账：<code>%.2f %s</code>\n\n"+
+			"└ 实际到账：<code>"+amountFormat+" %s</code>\n\n"+
 			"📋 <b>订单信息</b>\n"+
 			"├ 交易号：<code>%s</code>\n"+
 			"├ 订单号：<code>%s</code>\n"+
@@ -472,7 +331,7 @@ func sendPaymentNotification(order *mdb.Orders) {
 		networkDisplay(order.Network),
 		order.ReceiveAddress,
 		order.CreatedAt.ToDateTimeString(),
-		carbon.Now().ToDateTimeString(),
+		order.UpdatedAt.ToDateTimeString(),
 	)
 	notify.Dispatch(mdb.NotifyEventPaySuccess, msg)
 }

src/model/service/task_service_test.go

@@ -0,0 +1,211 @@
+package service
+
+import (
+	"math/big"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/GMWalletApp/epusdt/internal/testutil"
+	"github.com/GMWalletApp/epusdt/model/dao"
+	"github.com/GMWalletApp/epusdt/model/data"
+	"github.com/GMWalletApp/epusdt/model/mdb"
+	"github.com/GMWalletApp/epusdt/notify"
+	"github.com/ethereum/go-ethereum/common"
+)
+
+func TestSendPaymentNotificationUsesLatestOrderUpdatedAt(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	const channelType = "test-pay-success-time"
+	got := make(chan string, 1)
+	notify.RegisterSender(channelType, func(config, text string) error {
+		got <- text
+		return nil
+	})
+
+	if err := dao.Mdb.Create(&mdb.NotificationChannel{
+		Type:    channelType,
+		Name:    "test",
+		Config:  "{}",
+		Events:  `{"pay_success":true}`,
+		Enabled: true,
+	}).Error; err != nil {
+		t.Fatalf("seed notification channel: %v", err)
+	}
+
+	order := &mdb.Orders{
+		TradeId:        "T202604270001",
+		OrderId:        "ORD202604270001",
+		Amount:         100,
+		Currency:       "cny",
+		ActualAmount:   14.28,
+		Token:          "USDT",
+		Network:        mdb.NetworkTron,
+		ReceiveAddress: "TTestAddress",
+		Status:         mdb.StatusWaitPay,
+	}
+	if err := dao.Mdb.Create(order).Error; err != nil {
+		t.Fatalf("seed order: %v", err)
+	}
+
+	const createdAt = "2026-04-27 09:00:00"
+	const staleUpdatedAt = "2026-04-27 09:01:00"
+	const paidAt = "2026-04-27 10:20:30"
+	if err := dao.Mdb.Exec("UPDATE orders SET created_at = ?, updated_at = ? WHERE trade_id = ?", createdAt, staleUpdatedAt, order.TradeId).Error; err != nil {
+		t.Fatalf("set initial timestamps: %v", err)
+	}
+
+	var staleOrderModel mdb.Orders
+	if err := dao.Mdb.Where("trade_id = ?", order.TradeId).Take(&staleOrderModel).Error; err != nil {
+		t.Fatalf("load stale order: %v", err)
+	}
+
+	if err := dao.Mdb.Exec("UPDATE orders SET status = ?, updated_at = ? WHERE trade_id = ?", mdb.StatusPaySuccess, paidAt, order.TradeId).Error; err != nil {
+		t.Fatalf("set paid timestamp: %v", err)
+	}
+
+	sendPaymentNotification(&staleOrderModel)
+
+	select {
+	case text := <-got:
+		if !strings.Contains(text, "支付时间："+paidAt) {
+			t.Fatalf("notification payment time = %q, want %s", text, paidAt)
+		}
+		if strings.Contains(text, "支付时间："+staleUpdatedAt) {
+			t.Fatalf("notification used stale payment time: %q", text)
+		}
+	case <-time.After(2 * time.Second):
+		t.Fatal("timed out waiting for notification")
+	}
+}
+
+func TestTryProcessEvmERC20TransferUsesChainTokenContract(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	const (
+		tradeID  = "T202605110001"
+		orderID  = "ORD202605110001"
+		tokenSym = "FOO"
+		amount   = 12.34
+	)
+	contract := common.HexToAddress("0x1111111111111111111111111111111111111111")
+	receiveAddress := common.HexToAddress("0x2222222222222222222222222222222222222222")
+
+	if err := dao.Mdb.Create(&mdb.ChainToken{
+		Network:         mdb.NetworkEthereum,
+		Symbol:          tokenSym,
+		ContractAddress: contract.Hex(),
+		Decimals:        8,
+		Enabled:         true,
+	}).Error; err != nil {
+		t.Fatalf("seed chain token: %v", err)
+	}
+
+	order := &mdb.Orders{
+		TradeId:        tradeID,
+		OrderId:        orderID,
+		Amount:         100,
+		Currency:       "CNY",
+		ActualAmount:   amount,
+		Token:          tokenSym,
+		Network:        mdb.NetworkEthereum,
+		ReceiveAddress: strings.ToLower(receiveAddress.Hex()),
+		Status:         mdb.StatusWaitPay,
+	}
+	if err := dao.Mdb.Create(order).Error; err != nil {
+		t.Fatalf("seed order: %v", err)
+	}
+	if err := data.LockTransaction(mdb.NetworkEthereum, order.ReceiveAddress, order.Token, order.TradeId, order.ActualAmount, time.Hour); err != nil {
+		t.Fatalf("lock transaction: %v", err)
+	}
+
+	rawValue := big.NewInt(1_234_000_000) // 12.34 with 8 decimals
+	TryProcessEvmERC20Transfer(mdb.NetworkEthereum, contract, receiveAddress, rawValue, "0xfoo-hash", time.Now().UnixMilli())
+
+	paid, err := data.GetOrderInfoByTradeId(tradeID)
+	if err != nil {
+		t.Fatalf("load paid order: %v", err)
+	}
+	if paid.Status != mdb.StatusPaySuccess {
+		t.Fatalf("order status = %d, want %d", paid.Status, mdb.StatusPaySuccess)
+	}
+	if paid.BlockTransactionId != "0xfoo-hash" {
+		t.Fatalf("block transaction id = %q, want %q", paid.BlockTransactionId, "0xfoo-hash")
+	}
+
+	lockTradeID, err := data.GetTradeIdByWalletAddressAndAmountAndToken(mdb.NetworkEthereum, receiveAddress.Hex(), tokenSym, amount)
+	if err != nil {
+		t.Fatalf("lookup released lock: %v", err)
+	}
+	if lockTradeID != "" {
+		t.Fatalf("runtime lock still exists for trade_id=%q", lockTradeID)
+	}
+}
+
+func TestTryProcessEvmERC20TransferSkipsTransfersBeforeOrderCreation(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	const (
+		tradeID  = "T202605110002"
+		orderID  = "ORD202605110002"
+		tokenSym = "USDT"
+		amount   = 25.5
+	)
+	contract := common.HexToAddress("0x3333333333333333333333333333333333333333")
+	receiveAddress := common.HexToAddress("0x4444444444444444444444444444444444444444")
+
+	if err := dao.Mdb.Create(&mdb.ChainToken{
+		Network:         mdb.NetworkEthereum,
+		Symbol:          tokenSym,
+		ContractAddress: contract.Hex(),
+		Decimals:        6,
+		Enabled:         true,
+	}).Error; err != nil {
+		t.Fatalf("seed chain token: %v", err)
+	}
+
+	order := &mdb.Orders{
+		TradeId:        tradeID,
+		OrderId:        orderID,
+		Amount:         100,
+		Currency:       "CNY",
+		ActualAmount:   amount,
+		Token:          tokenSym,
+		Network:        mdb.NetworkEthereum,
+		ReceiveAddress: strings.ToLower(receiveAddress.Hex()),
+		Status:         mdb.StatusWaitPay,
+	}
+	if err := dao.Mdb.Create(order).Error; err != nil {
+		t.Fatalf("seed order: %v", err)
+	}
+	if err := data.LockTransaction(mdb.NetworkEthereum, order.ReceiveAddress, order.Token, order.TradeId, order.ActualAmount, time.Hour); err != nil {
+		t.Fatalf("lock transaction: %v", err)
+	}
+
+	rawValue := big.NewInt(25_500_000) // 25.5 with 6 decimals
+	oldBlockTsMs := order.CreatedAt.TimestampMilli() - 1
+	TryProcessEvmERC20Transfer(mdb.NetworkEthereum, contract, receiveAddress, rawValue, "0xold-hash", oldBlockTsMs)
+
+	got, err := data.GetOrderInfoByTradeId(tradeID)
+	if err != nil {
+		t.Fatalf("load order: %v", err)
+	}
+	if got.Status != mdb.StatusWaitPay {
+		t.Fatalf("order status = %d, want %d", got.Status, mdb.StatusWaitPay)
+	}
+	if got.BlockTransactionId != "" {
+		t.Fatalf("block transaction id = %q, want empty", got.BlockTransactionId)
+	}
+
+	lockTradeID, err := data.GetTradeIdByWalletAddressAndAmountAndToken(mdb.NetworkEthereum, receiveAddress.Hex(), tokenSym, amount)
+	if err != nil {
+		t.Fatalf("lookup retained lock: %v", err)
+	}
+	if lockTradeID != tradeID {
+		t.Fatalf("runtime lock trade_id = %q, want %q", lockTradeID, tradeID)
+	}
+}

src/model/service/task_tron_test.go

@@ -51,6 +51,49 @@ func TestResolveTronNode_WithRow(t *testing.T) {
 	}
 }
 
+func TestResolveTronNodeIgnoresManualVerifyOnly(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	if err := dao.Mdb.Create(&mdb.RpcNode{
+		Network: mdb.NetworkTron,
+		Url:     "https://paid-tron.example.com",
+		Type:    mdb.RpcNodeTypeHttp,
+		ApiKey:  "paid-key",
+		Weight:  100,
+		Enabled: true,
+		Purpose: mdb.RpcNodePurposeManualVerify,
+		Status:  mdb.RpcNodeStatusOk,
+	}).Error; err != nil {
+		t.Fatalf("seed manual rpc_node: %v", err)
+	}
+
+	if gotURL, gotKey, err := resolveTronNode(); err == nil {
+		t.Fatalf("resolveTronNode() = (%q, %q, nil), want error", gotURL, gotKey)
+	}
+}
+
+func TestResolveTronNodeUsesGeneralWhenManualVerifyExists(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	rows := []mdb.RpcNode{
+		{Network: mdb.NetworkTron, Url: "https://paid-tron.example.com", Type: mdb.RpcNodeTypeHttp, ApiKey: "paid-key", Weight: 100, Enabled: true, Purpose: mdb.RpcNodePurposeManualVerify, Status: mdb.RpcNodeStatusOk},
+		{Network: mdb.NetworkTron, Url: "https://general-tron.example.com", Type: mdb.RpcNodeTypeHttp, ApiKey: "general-key", Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+	}
+	if err := dao.Mdb.Create(&rows).Error; err != nil {
+		t.Fatalf("seed rpc_nodes: %v", err)
+	}
+
+	gotURL, gotKey, err := resolveTronNode()
+	if err != nil {
+		t.Fatalf("resolveTronNode(): %v", err)
+	}
+	if gotURL != "https://general-tron.example.com" || gotKey != "general-key" {
+		t.Fatalf("resolveTronNode() = (%q, %q), want general node", gotURL, gotKey)
+	}
+}
+
 // TestResolveTronNode_DisabledRow verifies that a disabled row is ignored.
 func TestResolveTronNode_DisabledRow(t *testing.T) {
 	cleanup := testutil.SetupTestDatabases(t)

src/route/admin_router_test.go

@@ -2,15 +2,20 @@ package route
 
 import (
 	"encoding/json"
+	"errors"
 	"fmt"
 	"net/http"
 	"net/http/httptest"
 	"strings"
 	"testing"
+	"time"
 
+	"github.com/GMWalletApp/epusdt/config"
 	"github.com/GMWalletApp/epusdt/model/dao"
 	"github.com/GMWalletApp/epusdt/model/data"
 	"github.com/GMWalletApp/epusdt/model/mdb"
+	"github.com/GMWalletApp/epusdt/model/service"
+	"github.com/GMWalletApp/epusdt/util/constant"
 	"github.com/labstack/echo/v4"
 )
 
@@ -320,13 +325,30 @@ func TestAdminInitPasswordFlow(t *testing.T) {
 	if fetchData["password"] != initPassword {
 		t.Fatalf("expected initial password %s, got %v", initPassword, fetchData["password"])
 	}
+	var plaintextRows int64
+	if err := dao.Mdb.Unscoped().
+		Model(&mdb.Setting{}).
+		Where("`key` = ?", mdb.SettingKeyInitAdminPasswordPlain).
+		Count(&plaintextRows).Error; err != nil {
+		t.Fatalf("count init password plaintext rows: %v", err)
+	}
+	if plaintextRows != 0 {
+		t.Fatalf("expected init password plaintext to be hard-deleted, got %d rows", plaintextRows)
+	}
 
 	recFetch2 := doGet(e, "/admin/api/v1/auth/init-password")
 	if recFetch2.Code != http.StatusBadRequest {
 		t.Fatalf("second fetch should fail with 400, got %d body=%s", recFetch2.Code, recFetch2.Body.String())
 	}
-	if !strings.Contains(strings.ToLower(recFetch2.Body.String()), "already fetched") {
+	var respFetch2 map[string]interface{}
-		t.Fatalf("expected already fetched error, got: %s", recFetch2.Body.String())
+	if err := json.Unmarshal(recFetch2.Body.Bytes(), &respFetch2); err != nil {
+		t.Fatalf("unmarshal second fetch response: %v", err)
+	}
+	if got := int(respFetch2["status_code"].(float64)); got != 10040 {
+		t.Fatalf("second fetch status_code = %d, want 10040; response=%v", got, respFetch2)
+	}
+	if got, _ := respFetch2["message"].(string); got != constant.Errno[10040] {
+		t.Fatalf("second fetch message = %q, want %q; response=%v", got, constant.Errno[10040], respFetch2)
 	}
 
 	token := adminLogin(t, e, testAdminUsername, initPassword)
@@ -509,14 +531,25 @@ func TestAdminRpcNodes_CRUD(t *testing.T) {
 	if nodeID == nil {
 		t.Fatal("CreateRpcNode missing id")
 	}
+	if got, _ := dataObj["purpose"].(string); got != mdb.RpcNodePurposeGeneral {
+		t.Fatalf("created purpose = %q, want %q", got, mdb.RpcNodePurposeGeneral)
+	}
 	nodeIDStr := fmt.Sprintf("%.0f", nodeID.(float64))
 
 	// Update.
 	rec = doPatchAdmin(e, "/admin/api/v1/rpc-nodes/"+nodeIDStr, map[string]interface{}{
-		"url": "https://eth-mainnet2.example.com",
+		"url":     "https://eth-mainnet2.example.com",
+		"purpose": mdb.RpcNodePurposeManualVerify,
 	}, token)
 	t.Logf("UpdateRpcNode: %s", rec.Body.String())
 	assertOK(t, rec)
+	updatedNode, err := data.GetRpcNodeByID(uint64(nodeID.(float64)))
+	if err != nil {
+		t.Fatalf("reload rpc node: %v", err)
+	}
+	if updatedNode.Purpose != mdb.RpcNodePurposeManualVerify {
+		t.Fatalf("updated purpose = %q, want %q", updatedNode.Purpose, mdb.RpcNodePurposeManualVerify)
+	}
 
 	// Health check — network likely unreachable in test, but route must not 404/500.
 	rec = doPostAdmin(e, "/admin/api/v1/rpc-nodes/"+nodeIDStr+"/health-check", nil, token)
@@ -531,6 +564,95 @@ func TestAdminRpcNodes_CRUD(t *testing.T) {
 	assertOK(t, rec)
 }
 
+func TestAdminRpcNodes_RejectsURLTypeMismatch(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+
+	rec := doPostAdmin(e, "/admin/api/v1/rpc-nodes", map[string]interface{}{
+		"network": "ethereum",
+		"url":     "wss://eth-mainnet.example.com",
+		"type":    mdb.RpcNodeTypeHttp,
+	}, token)
+	t.Logf("CreateRpcNode(http with wss): status=%d body=%s", rec.Code, rec.Body.String())
+	if rec.Code == http.StatusOK {
+		t.Fatalf("expected create mismatch to fail, got 200: %s", rec.Body.String())
+	}
+	assertErrorCode(t, rec, 10022)
+
+	rec = doPostAdmin(e, "/admin/api/v1/rpc-nodes", map[string]interface{}{
+		"network": "ethereum",
+		"url":     "https://eth-mainnet.example.com",
+		"type":    mdb.RpcNodeTypeWs,
+	}, token)
+	t.Logf("CreateRpcNode(ws with https): status=%d body=%s", rec.Code, rec.Body.String())
+	if rec.Code == http.StatusOK {
+		t.Fatalf("expected create mismatch to fail, got 200: %s", rec.Body.String())
+	}
+	assertErrorCode(t, rec, 10023)
+
+	rec = doPostAdmin(e, "/admin/api/v1/rpc-nodes", map[string]interface{}{
+		"network": "ethereum",
+		"url":     "https://eth-mainnet.example.com",
+		"type":    mdb.RpcNodeTypeHttp,
+		"purpose": "invalid-purpose",
+	}, token)
+	t.Logf("CreateRpcNode(invalid purpose): status=%d body=%s", rec.Code, rec.Body.String())
+	if rec.Code == http.StatusOK {
+		t.Fatalf("expected invalid purpose to fail, got 200: %s", rec.Body.String())
+	}
+	assertErrorCode(t, rec, 10020)
+
+	rec = doPostAdmin(e, "/admin/api/v1/rpc-nodes", map[string]interface{}{
+		"network": "ethereum",
+		"url":     "https://eth-mainnet.example.com",
+		"type":    mdb.RpcNodeTypeHttp,
+	}, token)
+	resp := assertOK(t, rec)
+	dataObj, _ := resp["data"].(map[string]interface{})
+	nodeID := uint64(dataObj["id"].(float64))
+	nodeIDStr := fmt.Sprintf("%d", nodeID)
+
+	rec = doPatchAdmin(e, "/admin/api/v1/rpc-nodes/"+nodeIDStr, map[string]interface{}{
+		"url": "wss://eth-mainnet.example.com",
+	}, token)
+	t.Logf("UpdateRpcNode(http with wss): status=%d body=%s", rec.Code, rec.Body.String())
+	if rec.Code == http.StatusOK {
+		t.Fatalf("expected update mismatch to fail, got 200: %s", rec.Body.String())
+	}
+	assertErrorCode(t, rec, 10022)
+
+	node, err := data.GetRpcNodeByID(nodeID)
+	if err != nil {
+		t.Fatalf("reload rpc node: %v", err)
+	}
+	if node.Url != "https://eth-mainnet.example.com" {
+		t.Fatalf("node url changed after rejected update: %q", node.Url)
+	}
+}
+
+func TestAdminPathIDParseErrorUsesParamsErrno(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+
+	rec := doGetAdmin(e, "/admin/api/v1/api-keys/not-a-number/stats", token)
+	assertErrorCode(t, rec, 10009)
+}
+
+func assertErrorCode(t *testing.T, rec *httptest.ResponseRecorder, wantCode int) {
+	t.Helper()
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("expected HTTP 400, got %d: %s", rec.Code, rec.Body.String())
+	}
+	var resp map[string]interface{}
+	if err := json.Unmarshal(rec.Body.Bytes(), &resp); err != nil {
+		t.Fatalf("unmarshal error response: %v", err)
+	}
+	if got := int(resp["status_code"].(float64)); got != wantCode {
+		t.Fatalf("status_code = %d, want %d; response=%v", got, wantCode, resp)
+	}
+	if got, _ := resp["message"].(string); got != constant.Errno[wantCode] {
+		t.Fatalf("message = %q, want %q; response=%v", got, constant.Errno[wantCode], resp)
+	}
+}
+
 // ─── Wallets ─────────────────────────────────────────────────────────────────
 
 // TestAdminWallets_CRUD verifies wallet management routes.
@@ -647,6 +769,143 @@ func TestAdminOrders_MarkPaidNotFound(t *testing.T) {
 	}
 }
 
+func TestAdminOrders_MarkPaidSuccessAfterVerification(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+	order := &mdb.Orders{
+		TradeId:        "trade-admin-mark-paid-ok",
+		OrderId:        "order-admin-mark-paid-ok",
+		Amount:         10,
+		Currency:       "CNY",
+		ActualAmount:   1.23,
+		ReceiveAddress: "TTestTronAddress001",
+		Token:          "USDT",
+		Network:        mdb.NetworkTron,
+		Status:         mdb.StatusWaitPay,
+		NotifyUrl:      "https://merchant.example/notify",
+		PayProvider:    mdb.PaymentProviderOnChain,
+	}
+	if err := dao.Mdb.Create(order).Error; err != nil {
+		t.Fatalf("create order: %v", err)
+	}
+
+	verified := false
+	restore := service.SetManualOrderPaymentValidatorForTest(func(got *mdb.Orders, blockID string) (string, error) {
+		verified = true
+		if got.TradeId != order.TradeId {
+			t.Fatalf("validator trade_id = %s, want %s", got.TradeId, order.TradeId)
+		}
+		if blockID != "block-admin-ok" {
+			t.Fatalf("validator block id = %s, want block-admin-ok", blockID)
+		}
+		return "canonical-block-admin-ok", nil
+	})
+	defer restore()
+
+	jsonBytes, _ := json.Marshal(map[string]interface{}{
+		"block_transaction_id": "block-admin-ok",
+	})
+	req := httptest.NewRequest(http.MethodPost, "/admin/api/v1/orders/"+order.TradeId+"/mark-paid", strings.NewReader(string(jsonBytes)))
+	req.Header.Set(echo.HeaderContentType, echo.MIMEApplicationJSON)
+	req.Header.Set(echo.HeaderAuthorization, "Bearer "+token)
+	rec := httptest.NewRecorder()
+	e.ServeHTTP(rec, req)
+	t.Logf("MarkOrderPaid success: status=%d body=%s", rec.Code, rec.Body.String())
+	assertOK(t, rec)
+	if !verified {
+		t.Fatal("expected chain verifier to be called")
+	}
+
+	paid, err := data.GetOrderInfoByTradeId(order.TradeId)
+	if err != nil {
+		t.Fatalf("reload order: %v", err)
+	}
+	if paid.Status != mdb.StatusPaySuccess {
+		t.Fatalf("status = %d, want %d", paid.Status, mdb.StatusPaySuccess)
+	}
+	if paid.BlockTransactionId != "canonical-block-admin-ok" {
+		t.Fatalf("block_transaction_id = %q", paid.BlockTransactionId)
+	}
+	if paid.CallBackConfirm != mdb.CallBackConfirmNo {
+		t.Fatalf("callback_confirm = %d, want %d", paid.CallBackConfirm, mdb.CallBackConfirmNo)
+	}
+}
+
+func TestAdminOrders_MarkPaidRejectsVerificationFailure(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+	order := &mdb.Orders{
+		TradeId:        "trade-admin-mark-paid-bad-proof",
+		OrderId:        "order-admin-mark-paid-bad-proof",
+		Amount:         10,
+		Currency:       "CNY",
+		ActualAmount:   1.23,
+		ReceiveAddress: "TTestTronAddress001",
+		Token:          "USDT",
+		Network:        mdb.NetworkTron,
+		Status:         mdb.StatusWaitPay,
+		NotifyUrl:      "https://merchant.example/notify",
+		PayProvider:    mdb.PaymentProviderOnChain,
+	}
+	if err := dao.Mdb.Create(order).Error; err != nil {
+		t.Fatalf("create order: %v", err)
+	}
+	restore := service.SetManualOrderPaymentValidatorForTest(func(*mdb.Orders, string) (string, error) {
+		return "", errors.New("transaction amount mismatch")
+	})
+	defer restore()
+
+	rec := doPostAdmin(e, "/admin/api/v1/orders/"+order.TradeId+"/mark-paid", map[string]interface{}{
+		"block_transaction_id": "block-admin-bad",
+	}, token)
+	t.Logf("MarkOrderPaid verifier failure: status=%d body=%s", rec.Code, rec.Body.String())
+	if rec.Code == http.StatusOK {
+		t.Fatalf("expected failure, got 200: %s", rec.Body.String())
+	}
+	reloaded, err := data.GetOrderInfoByTradeId(order.TradeId)
+	if err != nil {
+		t.Fatalf("reload order: %v", err)
+	}
+	if reloaded.Status != mdb.StatusWaitPay || reloaded.BlockTransactionId != "" {
+		t.Fatalf("order changed after failed verification: status=%d block=%q", reloaded.Status, reloaded.BlockTransactionId)
+	}
+}
+
+func TestAdminOrders_MarkPaidRejectsNonOnChainOrder(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+	order := &mdb.Orders{
+		TradeId:        "trade-admin-mark-paid-provider",
+		OrderId:        "order-admin-mark-paid-provider",
+		Amount:         10,
+		Currency:       "CNY",
+		ActualAmount:   1.23,
+		ReceiveAddress: "TTestTronAddress001",
+		Token:          "USDT",
+		Network:        mdb.NetworkTron,
+		Status:         mdb.StatusWaitPay,
+		NotifyUrl:      "https://merchant.example/notify",
+		PayProvider:    mdb.PaymentProviderOkPay,
+	}
+	if err := dao.Mdb.Create(order).Error; err != nil {
+		t.Fatalf("create order: %v", err)
+	}
+	called := false
+	restore := service.SetManualOrderPaymentValidatorForTest(func(*mdb.Orders, string) (string, error) {
+		called = true
+		return "block-admin-provider", nil
+	})
+	defer restore()
+
+	rec := doPostAdmin(e, "/admin/api/v1/orders/"+order.TradeId+"/mark-paid", map[string]interface{}{
+		"block_transaction_id": "block-admin-provider",
+	}, token)
+	t.Logf("MarkOrderPaid provider order: status=%d body=%s", rec.Code, rec.Body.String())
+	if rec.Code == http.StatusOK {
+		t.Fatalf("expected failure, got 200: %s", rec.Body.String())
+	}
+	if called {
+		t.Fatal("verifier should not run for non-on-chain order")
+	}
+}
+
 // TestAdminOrders_ResendCallbackNotFound verifies resend-callback graceful error.
 func TestAdminOrders_ResendCallbackNotFound(t *testing.T) {
 	e, token := setupAdminTestEnv(t)
@@ -657,6 +916,59 @@ func TestAdminOrders_ResendCallbackNotFound(t *testing.T) {
 	}
 }
 
+func TestAdminOrders_ResendCallbackRejectsEmptyNotifyURL(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+	order := &mdb.Orders{
+		TradeId:         "trade-admin-resend-empty-url",
+		OrderId:         "order-admin-resend-empty-url",
+		Status:          mdb.StatusPaySuccess,
+		CallBackConfirm: mdb.CallBackConfirmOk,
+		CallbackNum:     3,
+	}
+	if err := dao.Mdb.Create(order).Error; err != nil {
+		t.Fatalf("create order: %v", err)
+	}
+
+	rec := doPostAdmin(e, "/admin/api/v1/orders/"+order.TradeId+"/resend-callback", nil, token)
+	t.Logf("ResendCallback empty notify_url: status=%d body=%s", rec.Code, rec.Body.String())
+	if rec.Code == http.StatusOK {
+		t.Fatalf("expected failure, got 200: %s", rec.Body.String())
+	}
+	reloaded, err := data.GetOrderInfoByTradeId(order.TradeId)
+	if err != nil {
+		t.Fatalf("reload order: %v", err)
+	}
+	if reloaded.CallBackConfirm != mdb.CallBackConfirmOk || reloaded.CallbackNum != 3 {
+		t.Fatalf("callback state changed: confirm=%d num=%d", reloaded.CallBackConfirm, reloaded.CallbackNum)
+	}
+}
+
+func TestAdminOrders_ResendCallbackRequeuesPaidOrder(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+	order := &mdb.Orders{
+		TradeId:         "trade-admin-resend-ok",
+		OrderId:         "order-admin-resend-ok",
+		Status:          mdb.StatusPaySuccess,
+		NotifyUrl:       "https://merchant.example/notify",
+		CallBackConfirm: mdb.CallBackConfirmOk,
+		CallbackNum:     3,
+	}
+	if err := dao.Mdb.Create(order).Error; err != nil {
+		t.Fatalf("create order: %v", err)
+	}
+
+	rec := doPostAdmin(e, "/admin/api/v1/orders/"+order.TradeId+"/resend-callback", nil, token)
+	t.Logf("ResendCallback success: status=%d body=%s", rec.Code, rec.Body.String())
+	assertOK(t, rec)
+	reloaded, err := data.GetOrderInfoByTradeId(order.TradeId)
+	if err != nil {
+		t.Fatalf("reload order: %v", err)
+	}
+	if reloaded.CallBackConfirm != mdb.CallBackConfirmNo || reloaded.CallbackNum != 0 {
+		t.Fatalf("callback state = confirm %d num %d, want no/0", reloaded.CallBackConfirm, reloaded.CallbackNum)
+	}
+}
+
 // ─── Dashboard ───────────────────────────────────────────────────────────────
 
 // TestAdminDashboard_AllRoutes verifies all dashboard endpoints return 200.
@@ -676,27 +988,314 @@ func TestAdminDashboard_AllRoutes(t *testing.T) {
 	}
 }
 
+func TestAdminDashboard_RangeStatsIncludeHistoricalOrders(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+	yesterday := time.Now().AddDate(0, 0, -1)
+	createdAt := time.Date(yesterday.Year(), yesterday.Month(), yesterday.Day(), 10, 0, 0, 0, time.Local)
+	updatedAt := createdAt.Add(5 * time.Minute)
+
+	order := &mdb.Orders{
+		TradeId:        "trade-dashboard-yesterday",
+		OrderId:        "order-dashboard-yesterday",
+		Amount:         100,
+		Currency:       "CNY",
+		ActualAmount:   12.5,
+		ReceiveAddress: "TTestDashboardAddress001",
+		Token:          "USDT",
+		Network:        mdb.NetworkTron,
+		Status:         mdb.StatusPaySuccess,
+	}
+	if err := dao.Mdb.Create(order).Error; err != nil {
+		t.Fatalf("create historical order: %v", err)
+	}
+	if err := dao.Mdb.Model(order).Updates(map[string]interface{}{
+		"created_at": createdAt,
+		"updated_at": updatedAt,
+	}).Error; err != nil {
+		t.Fatalf("age historical order: %v", err)
+	}
+
+	todayResp := assertOK(t, doGetAdmin(e, "/admin/api/v1/dashboard/order-stats", token))
+	todayData, _ := todayResp["data"].(map[string]interface{})
+	if got, _ := todayData["order_count"].(float64); got != 0 {
+		t.Fatalf("default order-stats order_count = %v, want 0 for today's range", got)
+	}
+
+	statsResp := assertOK(t, doGetAdmin(e, "/admin/api/v1/dashboard/order-stats?range=7d", token))
+	statsData, _ := statsResp["data"].(map[string]interface{})
+	if got, _ := statsData["order_count"].(float64); got != 1 {
+		t.Fatalf("7d order-stats order_count = %v, want 1", got)
+	}
+	if got, _ := statsData["success_count"].(float64); got != 1 {
+		t.Fatalf("7d order-stats success_count = %v, want 1", got)
+	}
+
+	overviewResp := assertOK(t, doGetAdmin(e, "/admin/api/v1/dashboard/overview?range=7d", token))
+	overviewData, _ := overviewResp["data"].(map[string]interface{})
+	if got, _ := overviewData["order_count"].(float64); got != 1 {
+		t.Fatalf("7d overview order_count = %v, want 1", got)
+	}
+	if got, _ := overviewData["volume"].(float64); got != 12.5 {
+		t.Fatalf("7d overview volume = %v, want 12.5", got)
+	}
+
+	for _, path := range []string{
+		"/admin/api/v1/dashboard/asset-trend?range=7d",
+		"/admin/api/v1/dashboard/revenue-trend?range=7d",
+		"/admin/api/v1/dashboard/asset-trend?range=30d",
+		"/admin/api/v1/dashboard/revenue-trend?range=30d",
+	} {
+		resp := assertOK(t, doGetAdmin(e, path, token))
+		rows, _ := resp["data"].([]interface{})
+		day := createdAt.Format("2006-01-02")
+		found := false
+		for _, row := range rows {
+			item, _ := row.(map[string]interface{})
+			if item["day"] != day {
+				continue
+			}
+			found = true
+			if got, _ := item["order_count"].(float64); got != 1 {
+				t.Fatalf("%s order_count for %s = %v, want 1", path, day, got)
+			}
+			if got, _ := item["success_count"].(float64); got != 1 {
+				t.Fatalf("%s success_count for %s = %v, want 1", path, day, got)
+			}
+			if got, _ := item["actual_amount"].(float64); got != 12.5 {
+				t.Fatalf("%s actual_amount for %s = %v, want 12.5", path, day, got)
+			}
+		}
+		if !found {
+			t.Fatalf("%s missing historical bucket %s: %#v", path, day, rows)
+		}
+	}
+
+	addressResp := assertOK(t, doGetAdmin(e, "/admin/api/v1/dashboard/asset-trend?range=7d&group_by=address", token))
+	addressRows, _ := addressResp["data"].([]interface{})
+	day := createdAt.Format("2006-01-02")
+	foundAddress := false
+	for _, row := range addressRows {
+		item, _ := row.(map[string]interface{})
+		if item["day"] != day || item["address"] != order.ReceiveAddress {
+			continue
+		}
+		foundAddress = true
+		if got, _ := item["actual_amount"].(float64); got != 12.5 {
+			t.Fatalf("address trend actual_amount for %s = %v, want 12.5", day, got)
+		}
+	}
+	if !foundAddress {
+		t.Fatalf("address trend missing historical bucket %s/%s: %#v", day, order.ReceiveAddress, addressRows)
+	}
+}
+
+func TestAdminDashboard_TodayTrendUsesHourlyBuckets(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+	now := time.Now()
+	createdAt := time.Date(now.Year(), now.Month(), now.Day(), now.Hour(), 0, 0, 0, time.Local)
+	updatedAt := createdAt.Add(2 * time.Minute)
+
+	order := &mdb.Orders{
+		TradeId:        "trade-dashboard-today",
+		OrderId:        "order-dashboard-today",
+		Amount:         80,
+		Currency:       "CNY",
+		ActualAmount:   9.75,
+		ReceiveAddress: "TTestDashboardAddressHourly",
+		Token:          "USDT",
+		Network:        mdb.NetworkTron,
+		Status:         mdb.StatusPaySuccess,
+	}
+	if err := dao.Mdb.Create(order).Error; err != nil {
+		t.Fatalf("create today order: %v", err)
+	}
+	if err := dao.Mdb.Model(order).Updates(map[string]interface{}{
+		"created_at": createdAt,
+		"updated_at": updatedAt,
+	}).Error; err != nil {
+		t.Fatalf("set today order time: %v", err)
+	}
+
+	for _, path := range []string{
+		"/admin/api/v1/dashboard/asset-trend?range=today",
+		"/admin/api/v1/dashboard/revenue-trend?range=today",
+	} {
+		resp := assertOK(t, doGetAdmin(e, path, token))
+		rows, _ := resp["data"].([]interface{})
+		hour := createdAt.Format("2006-01-02 15:00")
+		found := false
+		for _, row := range rows {
+			item, _ := row.(map[string]interface{})
+			if item["day"] != hour {
+				continue
+			}
+			found = true
+			if got, _ := item["order_count"].(float64); got != 1 {
+				t.Fatalf("%s order_count for %s = %v, want 1", path, hour, got)
+			}
+			if got, _ := item["success_count"].(float64); got != 1 {
+				t.Fatalf("%s success_count for %s = %v, want 1", path, hour, got)
+			}
+			if got, _ := item["actual_amount"].(float64); got != 9.75 {
+				t.Fatalf("%s actual_amount for %s = %v, want 9.75", path, hour, got)
+			}
+		}
+		if !found {
+			t.Fatalf("%s missing hourly bucket %s: %#v", path, hour, rows)
+		}
+	}
+}
+
 // ─── Settings ────────────────────────────────────────────────────────────────
 
 // TestAdminSettings_ListAndUpsert verifies listing and upserting settings.
 func TestAdminSettings_ListAndUpsert(t *testing.T) {
 	e, token := setupAdminTestEnv(t)
 
+	if err := data.SetSetting(mdb.SettingGroupOkPay, mdb.SettingKeyOkPayShopToken, "token-visible-in-settings", mdb.SettingTypeString); err != nil {
+		t.Fatalf("seed okpay.shop_token: %v", err)
+	}
+
 	// List settings.
 	rec := doGetAdmin(e, "/admin/api/v1/settings", token)
 	t.Logf("ListSettings: %s", rec.Body.String())
-	assertOK(t, rec)
+	resp := assertOK(t, rec)
+	rows, ok := resp["data"].([]interface{})
+	if !ok {
+		t.Fatalf("expected settings array, got %T", resp["data"])
+	}
+	foundToken := false
+	for _, row := range rows {
+		item, _ := row.(map[string]interface{})
+		if item["key"] == mdb.SettingKeyOkPayShopToken {
+			foundToken = true
+			if item["value"] != "token-visible-in-settings" {
+				t.Fatalf("okpay.shop_token value = %v, want token-visible-in-settings", item["value"])
+			}
+		}
+	}
+	if !foundToken {
+		t.Fatalf("expected admin settings list to expose %s", mdb.SettingKeyOkPayShopToken)
+	}
 
 	// Upsert a setting.
 	rec = doPutAdmin(e, "/admin/api/v1/settings", map[string]interface{}{
 		"items": []map[string]interface{}{
-			{"group": "rate", "key": "rate.forced_usdt_rate", "value": "7.5", "type": "string"},
+			{"group": "rate", "key": mdb.SettingKeyRateForcedRateList, "value": map[string]interface{}{
+				"cny": map[string]interface{}{"usdt": 0.14635},
+				"usd": map[string]interface{}{"usdt": 1},
+			}, "type": "json"},
 		},
 	}, token)
 	t.Logf("UpsertSettings: %s", rec.Body.String())
 	assertOK(t, rec)
 }
 
+func TestAdminSettings_ForcedRateListValidation(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+
+	rec := doPutAdmin(e, "/admin/api/v1/settings", map[string]interface{}{
+		"items": []map[string]interface{}{
+			{"group": "rate", "key": mdb.SettingKeyRateForcedRateList, "value": map[string]interface{}{
+				" CNY ": map[string]interface{}{" USDT ": 0.14635},
+			}, "type": "string"},
+			{"group": "rate", "key": mdb.SettingKeyRateForcedRateList, "value": `{"cny":`, "type": "json"},
+			{"group": "rate", "key": mdb.SettingKeyRateForcedRateList, "value": map[string]interface{}{
+				"CNY": map[string]interface{}{"USDT": 0.14635},
+				"cny": map[string]interface{}{"usdt": 0.14636},
+			}, "type": "json"},
+		},
+	}, token)
+	resp := assertOK(t, rec)
+	results, ok := resp["data"].([]interface{})
+	if !ok || len(results) != 3 {
+		t.Fatalf("expected three results, got %T %v", resp["data"], resp["data"])
+	}
+	first, _ := results[0].(map[string]interface{})
+	if first["ok"] != true {
+		t.Fatalf("valid forced rate list result = %v", first)
+	}
+	second, _ := results[1].(map[string]interface{})
+	if second["ok"] != false {
+		t.Fatalf("invalid forced rate list result = %v, want ok=false", second)
+	}
+	third, _ := results[2].(map[string]interface{})
+	if third["ok"] != false {
+		t.Fatalf("duplicate forced rate list result = %v, want ok=false", third)
+	}
+
+	if got := data.GetSettingString(mdb.SettingKeyRateForcedRateList, ""); got != `{"cny":{"usdt":0.14635}}` {
+		t.Fatalf("forced rate list value = %q", got)
+	}
+	if rate := config.GetRateForCoin("USDT", "CNY"); rate != 0.14635 {
+		t.Fatalf("GetRateForCoin(USDT, CNY) = %v, want 0.14635", rate)
+	}
+	var row mdb.Setting
+	if err := dao.Mdb.Where("`key` = ?", mdb.SettingKeyRateForcedRateList).Take(&row).Error; err != nil {
+		t.Fatalf("load forced rate list: %v", err)
+	}
+	if row.Type != mdb.SettingTypeJSON {
+		t.Fatalf("forced rate list type = %q, want %q", row.Type, mdb.SettingTypeJSON)
+	}
+}
+
+func TestAdminSettings_AmountPrecisionValidationAndListing(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+
+	rec := doPutAdmin(e, "/admin/api/v1/settings", map[string]interface{}{
+		"items": []map[string]interface{}{
+			{"group": "system", "key": mdb.SettingKeyAmountPrecision, "value": "4", "type": "int"},
+		},
+	}, token)
+	resp := assertOK(t, rec)
+	results, ok := resp["data"].([]interface{})
+	if !ok || len(results) != 1 {
+		t.Fatalf("expected one result, got %T %v", resp["data"], resp["data"])
+	}
+	result, _ := results[0].(map[string]interface{})
+	if result["ok"] != true {
+		t.Fatalf("amount precision upsert result = %v", result)
+	}
+
+	rec = doGetAdmin(e, "/admin/api/v1/settings?group=system", token)
+	resp = assertOK(t, rec)
+	rows, ok := resp["data"].([]interface{})
+	if !ok {
+		t.Fatalf("expected settings array, got %T", resp["data"])
+	}
+	found := false
+	for _, row := range rows {
+		item, _ := row.(map[string]interface{})
+		if item["key"] == mdb.SettingKeyAmountPrecision {
+			found = true
+			if item["value"] != "4" {
+				t.Fatalf("amount precision value = %v, want 4", item["value"])
+			}
+		}
+	}
+	if !found {
+		t.Fatalf("expected settings list to include %s", mdb.SettingKeyAmountPrecision)
+	}
+
+	rec = doPutAdmin(e, "/admin/api/v1/settings", map[string]interface{}{
+		"items": []map[string]interface{}{
+			{"group": "system", "key": mdb.SettingKeyAmountPrecision, "value": "7", "type": "int"},
+			{"group": "system", "key": mdb.SettingKeyAmountPrecision, "value": "abc", "type": "int"},
+		},
+	}, token)
+	resp = assertOK(t, rec)
+	results, ok = resp["data"].([]interface{})
+	if !ok || len(results) != 2 {
+		t.Fatalf("expected two results, got %T %v", resp["data"], resp["data"])
+	}
+	for _, item := range results {
+		result, _ := item.(map[string]interface{})
+		if result["ok"] != false {
+			t.Fatalf("invalid amount precision result = %v, want ok=false", result)
+		}
+	}
+}
+
 // TestAdminSettings_DeleteNonExistent verifies deleting a non-existent setting.
 func TestAdminSettings_DeleteNonExistent(t *testing.T) {
 	e, token := setupAdminTestEnv(t)
@@ -708,6 +1307,248 @@ func TestAdminSettings_DeleteNonExistent(t *testing.T) {
 	}
 }
 
+func TestAdminSettings_RejectsPrivateRateAPIURL(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+
+	rec := doPutAdmin(e, "/admin/api/v1/settings", map[string]interface{}{
+		"items": []map[string]interface{}{
+			{"group": "rate", "key": mdb.SettingKeyRateApiUrl, "value": "http://127.0.0.1:8080/", "type": "string"},
+		},
+	}, token)
+	resp := assertOK(t, rec)
+	results, ok := resp["data"].([]interface{})
+	if !ok || len(results) != 1 {
+		t.Fatalf("expected one result, got %T %v", resp["data"], resp["data"])
+	}
+	result, _ := results[0].(map[string]interface{})
+	if result["ok"] != false {
+		t.Fatalf("private rate.api_url result = %v, want ok=false", result)
+	}
+	if got := int(result["error_code"].(float64)); got != 10043 {
+		t.Fatalf("private rate.api_url error_code = %d, want 10043; result=%v", got, result)
+	}
+	if got, _ := result["error"].(string); got != constant.Errno[10043] {
+		t.Fatalf("private rate.api_url error = %q, want %q", got, constant.Errno[10043])
+	}
+}
+
+func TestAdminSettings_AllowsPublicRateAPIURL(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+
+	rec := doPutAdmin(e, "/admin/api/v1/settings", map[string]interface{}{
+		"items": []map[string]interface{}{
+			{"group": "rate", "key": mdb.SettingKeyRateApiUrl, "value": "https://93.184.216.34/rate", "type": "string"},
+		},
+	}, token)
+	resp := assertOK(t, rec)
+	results, ok := resp["data"].([]interface{})
+	if !ok || len(results) != 1 {
+		t.Fatalf("expected one result, got %T %v", resp["data"], resp["data"])
+	}
+	result, _ := results[0].(map[string]interface{})
+	if result["ok"] != true {
+		t.Fatalf("public rate.api_url result = %v, want ok=true", result)
+	}
+}
+
+func TestAdminSettings_DeleteThenReupsertRestoresSetting(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+
+	rec := doPutAdmin(e, "/admin/api/v1/settings", map[string]interface{}{
+		"items": []map[string]interface{}{
+			{"group": "rate", "key": mdb.SettingKeyRateApiUrl, "value": "https://93.184.216.34/rate-old", "type": "string"},
+		},
+	}, token)
+	assertOK(t, rec)
+
+	rec = doDeleteAdmin(e, "/admin/api/v1/settings/"+mdb.SettingKeyRateApiUrl, token)
+	assertOK(t, rec)
+	if got := data.GetSettingString(mdb.SettingKeyRateApiUrl, "fallback"); got != "fallback" {
+		t.Fatalf("deleted setting still in cache/read path: got %q", got)
+	}
+
+	rec = doPutAdmin(e, "/admin/api/v1/settings", map[string]interface{}{
+		"items": []map[string]interface{}{
+			{"group": "rate", "key": mdb.SettingKeyRateApiUrl, "value": "https://93.184.216.34/rate-new", "type": "string"},
+		},
+	}, token)
+	assertOK(t, rec)
+
+	rec = doGetAdmin(e, "/admin/api/v1/settings?group=rate", token)
+	resp := assertOK(t, rec)
+	rows, ok := resp["data"].([]interface{})
+	if !ok {
+		t.Fatalf("expected settings array, got %T", resp["data"])
+	}
+	found := false
+	for _, row := range rows {
+		item, _ := row.(map[string]interface{})
+		if item["key"] == mdb.SettingKeyRateApiUrl {
+			found = true
+			if item["value"] != "https://93.184.216.34/rate-new" {
+				t.Fatalf("rate.api_url value = %v, want new value", item["value"])
+			}
+		}
+	}
+	if !found {
+		t.Fatalf("expected settings list to include restored %s", mdb.SettingKeyRateApiUrl)
+	}
+
+	var restored mdb.Setting
+	if err := dao.Mdb.Unscoped().Where("`key` = ?", mdb.SettingKeyRateApiUrl).Take(&restored).Error; err != nil {
+		t.Fatalf("load restored setting unscoped: %v", err)
+	}
+	if restored.DeletedAt.Valid {
+		t.Fatalf("restored setting still has deleted_at=%v", restored.DeletedAt)
+	}
+}
+
+func TestAdminSettings_DeleteThenReupsertRestoresForcedRateList(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+
+	rec := doPutAdmin(e, "/admin/api/v1/settings", map[string]interface{}{
+		"items": []map[string]interface{}{
+			{"group": "rate", "key": mdb.SettingKeyRateForcedRateList, "value": map[string]interface{}{
+				"CNY": map[string]interface{}{"USDT": 0.14635},
+			}, "type": "json"},
+		},
+	}, token)
+	assertOK(t, rec)
+
+	rec = doDeleteAdmin(e, "/admin/api/v1/settings/"+mdb.SettingKeyRateForcedRateList, token)
+	assertOK(t, rec)
+	if got := data.GetSettingString(mdb.SettingKeyRateForcedRateList, "fallback"); got != "fallback" {
+		t.Fatalf("deleted forced rate list still in cache/read path: got %q", got)
+	}
+	if got := config.GetRateForCoin("USDT", "CNY"); got != 0 {
+		t.Fatalf("deleted forced rate list still used by rate lookup: got %v", got)
+	}
+
+	rec = doPutAdmin(e, "/admin/api/v1/settings", map[string]interface{}{
+		"items": []map[string]interface{}{
+			{"group": "rate", "key": mdb.SettingKeyRateForcedRateList, "value": map[string]interface{}{
+				"CNY": map[string]interface{}{"USDT": 0.15},
+			}, "type": "json"},
+		},
+	}, token)
+	assertOK(t, rec)
+
+	if got := data.GetSettingString(mdb.SettingKeyRateForcedRateList, ""); got != `{"cny":{"usdt":0.15}}` {
+		t.Fatalf("restored forced rate list = %q", got)
+	}
+	if got := config.GetRateForCoin("USDT", "CNY"); got != 0.15 {
+		t.Fatalf("restored forced rate list lookup = %v, want 0.15", got)
+	}
+
+	var restored mdb.Setting
+	if err := dao.Mdb.Unscoped().Where("`key` = ?", mdb.SettingKeyRateForcedRateList).Take(&restored).Error; err != nil {
+		t.Fatalf("load restored forced rate list unscoped: %v", err)
+	}
+	if restored.DeletedAt.Valid {
+		t.Fatalf("restored forced rate list still has deleted_at=%v", restored.DeletedAt)
+	}
+}
+
+func TestAdminConfig_ExposesOkPayCredentials(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+	if err := data.SetSetting(mdb.SettingGroupBrand, mdb.SettingKeyBrandCheckoutName, "admin cashier", mdb.SettingTypeString); err != nil {
+		t.Fatalf("seed brand.checkout_name: %v", err)
+	}
+	if err := data.SetSetting(mdb.SettingGroupOkPay, mdb.SettingKeyOkPayEnabled, "true", mdb.SettingTypeBool); err != nil {
+		t.Fatalf("seed okpay.enabled: %v", err)
+	}
+	if err := data.SetSetting(mdb.SettingGroupOkPay, mdb.SettingKeyOkPayShopID, "shop-admin-1", mdb.SettingTypeString); err != nil {
+		t.Fatalf("seed okpay.shop_id: %v", err)
+	}
+	if err := data.SetSetting(mdb.SettingGroupOkPay, mdb.SettingKeyOkPayShopToken, "token-admin-1", mdb.SettingTypeString); err != nil {
+		t.Fatalf("seed okpay.shop_token: %v", err)
+	}
+	if err := data.SetSetting(mdb.SettingGroupOkPay, mdb.SettingKeyOkPayCallbackURL, "https://example.com/notify", mdb.SettingTypeString); err != nil {
+		t.Fatalf("seed okpay.callback_url: %v", err)
+	}
+
+	rec := doGetAdmin(e, "/admin/api/v1/config", token)
+	resp := assertOK(t, rec)
+	dataObj, _ := resp["data"].(map[string]interface{})
+	site, ok := dataObj["site"].(map[string]interface{})
+	if !ok {
+		t.Fatalf("expected site object, got %T", dataObj["site"])
+	}
+	if site["cashier_name"] != "admin cashier" {
+		t.Fatalf("cashier_name = %v, want admin cashier", site["cashier_name"])
+	}
+	okpay, ok := dataObj["okpay"].(map[string]interface{})
+	if !ok {
+		t.Fatalf("expected okpay object, got %T", dataObj["okpay"])
+	}
+	if okpay["shop_id"] != "shop-admin-1" {
+		t.Fatalf("shop_id = %v, want shop-admin-1", okpay["shop_id"])
+	}
+	if okpay["shop_token"] != "token-admin-1" {
+		t.Fatalf("shop_token = %v, want token-admin-1", okpay["shop_token"])
+	}
+	if okpay["callback_url"] != "https://example.com/notify" {
+		t.Fatalf("callback_url = %v", okpay["callback_url"])
+	}
+}
+
+func TestAdminSettings_UpsertBrandReflectsInConfig(t *testing.T) {
+	e, token := setupAdminTestEnv(t)
+
+	updateBrand := func(cashier, logo, title, support, bgColor, bgImage string) {
+		rec := doPutAdmin(e, "/admin/api/v1/settings", map[string]interface{}{
+			"items": []map[string]interface{}{
+				{"group": mdb.SettingGroupBrand, "key": mdb.SettingKeyBrandCheckoutName, "value": cashier, "type": mdb.SettingTypeString},
+				{"group": mdb.SettingGroupBrand, "key": mdb.SettingKeyBrandLogoUrl, "value": logo, "type": mdb.SettingTypeString},
+				{"group": mdb.SettingGroupBrand, "key": mdb.SettingKeyBrandSiteTitle, "value": title, "type": mdb.SettingTypeString},
+				{"group": mdb.SettingGroupBrand, "key": mdb.SettingKeyBrandSupportUrl, "value": support, "type": mdb.SettingTypeString},
+				{"group": mdb.SettingGroupBrand, "key": mdb.SettingKeyBrandBackgroundColor, "value": bgColor, "type": mdb.SettingTypeString},
+				{"group": mdb.SettingGroupBrand, "key": mdb.SettingKeyBrandBackgroundImageUrl, "value": bgImage, "type": mdb.SettingTypeString},
+			},
+		}, token)
+		assertOK(t, rec)
+	}
+
+	assertSite := func(path, wantCashier, wantLogo, wantTitle, wantSupport, wantBgColor, wantBgImage string) {
+		rec := doGet(e, path)
+		if strings.HasPrefix(path, "/admin/") {
+			rec = doGetAdmin(e, path, token)
+		}
+		resp := assertOK(t, rec)
+		dataObj, _ := resp["data"].(map[string]interface{})
+		site, ok := dataObj["site"].(map[string]interface{})
+		if !ok {
+			t.Fatalf("%s expected site object, got %T", path, dataObj["site"])
+		}
+		if site["cashier_name"] != wantCashier {
+			t.Fatalf("%s cashier_name=%v, want %s", path, site["cashier_name"], wantCashier)
+		}
+		if site["logo_url"] != wantLogo {
+			t.Fatalf("%s logo_url=%v, want %s", path, site["logo_url"], wantLogo)
+		}
+		if site["website_title"] != wantTitle {
+			t.Fatalf("%s website_title=%v, want %s", path, site["website_title"], wantTitle)
+		}
+		if site["support_link"] != wantSupport {
+			t.Fatalf("%s support_link=%v, want %s", path, site["support_link"], wantSupport)
+		}
+		if site["background_color"] != wantBgColor {
+			t.Fatalf("%s background_color=%v, want %s", path, site["background_color"], wantBgColor)
+		}
+		if site["background_image_url"] != wantBgImage {
+			t.Fatalf("%s background_image_url=%v, want %s", path, site["background_image_url"], wantBgImage)
+		}
+	}
+
+	updateBrand("cashier-v1", "https://cdn.example.com/v1.png", "title-v1", "https://example.com/help-v1", "#111111", "https://cdn.example.com/bg-v1.png")
+	assertSite("/payments/gmpay/v1/config", "cashier-v1", "https://cdn.example.com/v1.png", "title-v1", "https://example.com/help-v1", "#111111", "https://cdn.example.com/bg-v1.png")
+	assertSite("/admin/api/v1/config", "cashier-v1", "https://cdn.example.com/v1.png", "title-v1", "https://example.com/help-v1", "#111111", "https://cdn.example.com/bg-v1.png")
+
+	updateBrand("cashier-v2", "https://cdn.example.com/v2.png", "title-v2", "https://example.com/help-v2", "#222222", "https://cdn.example.com/bg-v2.png")
+	assertSite("/payments/gmpay/v1/config", "cashier-v2", "https://cdn.example.com/v2.png", "title-v2", "https://example.com/help-v2", "#222222", "https://cdn.example.com/bg-v2.png")
+	assertSite("/admin/api/v1/config", "cashier-v2", "https://cdn.example.com/v2.png", "title-v2", "https://example.com/help-v2", "#222222", "https://cdn.example.com/bg-v2.png")
+}
+
 // ─── Notification Channels ───────────────────────────────────────────────────
 
 // TestAdminNotificationChannels_CRUD verifies notification channel routes.
@@ -825,7 +1666,7 @@ func TestAdminOrders_ListWithSubExcludesSubOrdersFromTopLevel(t *testing.T) {
 		"currency":     "CNY",
 		"token":        "USDT",
 		"network":      "tron",
-		"notify_url":   "https://merchant.example/callback",
+		"notify_url":   "https://93.184.216.34/callback",
 		"redirect_url": "https://merchant.example/redirect",
 	})
 	rec := doPost(e, "/payments/gmpay/v1/order/create-transaction", parentBody)

src/route/router.go

@@ -22,13 +22,22 @@ import (
 
 // RegisterRoute 路由注册
 func RegisterRoute(e *echo.Echo) {
-	e.Any("/", func(c echo.Context) error {
+	e.POST("/", func(c echo.Context) error {
 		return c.String(http.StatusOK, "hello epusdt, https://github.com/GMwalletApp/epusdt")
 	})
 
 	payRoute := e.Group("/pay")
-	payRoute.GET("/checkout-counter/:trade_id", comm.Ctrl.CheckoutCounter)
+	payRoute.GET("/checkout-counter/:trade_id", func(ctx echo.Context) error {
+		tradeId := ctx.Param("trade_id")
+
+		targetURL := fmt.Sprintf("/cashier/%s", tradeId)
+
+		return ctx.Redirect(http.StatusMovedPermanently, targetURL)
+	})
+
+	payRoute.GET("/checkout-counter-resp/:trade_id", comm.Ctrl.CheckoutCounter)
 	payRoute.GET("/check-status/:trade_id", comm.Ctrl.CheckStatus)
+	payRoute.POST("/submit-tx-hash/:trade_id", comm.Ctrl.SubmitTxHash)
 	payRoute.POST("/switch-network", comm.Ctrl.SwitchNetwork)
 
 	// payment routes
@@ -37,9 +46,11 @@ func RegisterRoute(e *echo.Echo) {
 	// gmpay v1 routes
 	gmpayV1 := paymentRoute.Group("/gmpay/v1")
 	gmpayV1.POST("/order/create-transaction", comm.Ctrl.CreateTransaction, middleware.CheckApiSign())
-	gmpayV1.GET("/supported-assets", comm.Ctrl.GetSupportedAssets)
+	gmpayV1.GET("/config", comm.Ctrl.GetPublicConfig)
-	// gmpayV1.GET("/supported-assets/records", comm.Ctrl.ListSupportedAssetRecords)
+
-	// gmpayV1.GET("/supported-assets/:id", comm.Ctrl.GetSupportedAsset)
+	// okpay v1 routes
+	okpayV1 := paymentRoute.Group("/okpay/v1")
+	okpayV1.POST("/notify", comm.Ctrl.OkPayNotify)
 
 	// epay v1 routes
 	//
@@ -64,7 +75,7 @@ func RegisterRoute(e *echo.Echo) {
 
 		formParams, err := ctx.FormParams()
 		if err != nil && ctx.Request().Method == http.MethodPost {
-			return comm.Ctrl.FailJson(ctx, fmt.Errorf("invalid epay form params: %w", err))
+			return comm.Ctrl.FailJson(ctx, constant.ParamsMarshalErr)
 		}
 		if err == nil {
 			copyParams(formParams)
@@ -121,7 +132,7 @@ func RegisterRoute(e *echo.Echo) {
 
 		amountFloat, err := strconv.ParseFloat(money, 64)
 		if err != nil {
-			return comm.Ctrl.FailJson(ctx, fmt.Errorf("invalid money value: %s", money))
+			return comm.Ctrl.FailJson(ctx, constant.PayAmountErr)
 		}
 
 		body := map[string]interface{}{
@@ -143,7 +154,7 @@ func RegisterRoute(e *echo.Echo) {
 
 		jsonBytes, err := json.Marshal(body)
 		if err != nil {
-			return comm.Ctrl.FailJson(ctx, err)
+			return comm.Ctrl.FailJson(ctx, constant.SystemErr)
 		}
 
 		ctx.Request().Body = io.NopCloser(bytes.NewBuffer(jsonBytes))
@@ -214,8 +225,7 @@ func registerAdminRoutes(e *echo.Echo) {
 	authed.POST("/notification-channels/:id/status", admin.Ctrl.ChangeNotificationChannelStatus)
 	authed.DELETE("/notification-channels/:id", admin.Ctrl.DeleteNotificationChannel)
 
-	//	gmpayV1.GET("/supported-assets", comm.Ctrl.GetSupportedAssets)
+	authed.GET("/config", comm.Ctrl.GetPublicConfig) // wrap for admin console, same payload as public endpoint
-	authed.GET("/supported-assets", comm.Ctrl.GetSupportedAssets) // wrap for admin console, same handler as public endpoint
 
 	// Chains
 	authed.GET("/chains", admin.Ctrl.ListChains)

src/static/index.html

@@ -1,546 +0,0 @@
-<!DOCTYPE html>
-<html lang="en" data-theme="dark">
-
-<head>
-  <meta charset="UTF-8" />
-  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>GMWallet — Crypto Payment</title>
-  <link rel="icon" href="https://www.gmwallet.app/favicon.png" />
-  <link rel="preconnect" href="https://cdn.jsdmirror.com" crossorigin />
-  <link rel="stylesheet" href="https://cdn.jsdmirror.com/npm/@fontsource-variable/noto-sans-sc/index.css" />
-  <link rel="stylesheet" href="https://cdn.jsdmirror.com/npm/@fontsource-variable/nunito/index.css" />
-  <script src="https://cdn.jsdmirror.com/npm/@tailwindcss/browser@4"></script>
-  <style type="text/tailwindcss">
-    @variant dark (&:where([data-theme="dark"], [data-theme="dark"] *));
-
-    @theme inline {
-      --font-sans:               "Noto Sans SC Variable", "Noto Sans SC", system-ui, sans-serif;
-      --font-nunito:             "Nunito Variable", "Noto Sans SC Variable", "Noto Sans SC", system-ui, sans-serif;
-      --color-background:        var(--background);
-      --color-foreground:        var(--foreground);
-      --color-card:              var(--card);
-      --color-card-foreground:   var(--card-foreground);
-      --color-popover:           var(--popover);
-      --color-popover-foreground:var(--popover-foreground);
-      --color-primary:           var(--primary);
-      --color-primary-foreground:var(--primary-foreground);
-      --color-secondary:         var(--secondary);
-      --color-secondary-foreground:var(--secondary-foreground);
-      --color-muted:             var(--muted);
-      --color-muted-foreground:  var(--muted-foreground);
-      --color-accent:            var(--accent);
-      --color-accent-foreground: var(--accent-foreground);
-      --color-destructive:       var(--destructive);
-      --color-border:            var(--border);
-      --color-input:             var(--input);
-      --color-ring:              var(--ring);
-      --color-success:           var(--success);
-      --color-warning:           var(--warning);
-      --animate-state-in:        state-in .28s cubic-bezier(.34,1.56,.64,1);
-      --radius-sm:  calc(var(--radius) - 4px);
-      --radius-md:  calc(var(--radius) - 2px);
-      --radius-lg:  var(--radius);
-      --radius-xl:  calc(var(--radius) + 4px);
-      --radius-2xl: calc(var(--radius) + 8px);
-    }
-
-    /* ── Design tokens ── */
-    :root, [data-theme="light"] {
-      --background:        oklch(1 0 0);
-      --foreground:        oklch(0.141 0.005 285.823);
-      --card:              oklch(1 0 0);
-      --card-foreground:   oklch(0.141 0.005 285.823);
-      --popover:           oklch(1 0 0);
-      --popover-foreground:oklch(0.141 0.005 285.823);
-      --primary:           oklch(0.21 0.006 285.885);
-      --primary-foreground:oklch(0.985 0 0);
-      --secondary:         oklch(0.967 0.001 286.375);
-      --secondary-foreground:oklch(0.21 0.006 285.885);
-      --muted:             oklch(0.967 0.001 286.375);
-      --muted-foreground:  oklch(0.552 0.016 285.938);
-      --accent:            oklch(0.967 0.001 286.375);
-      --accent-foreground: oklch(0.21 0.006 285.885);
-      --destructive:       oklch(0.577 0.245 27.325);
-      --border:            oklch(0.92 0.004 286.32);
-      --input:             oklch(0.92 0.004 286.32);
-      --ring:              oklch(0.705 0.015 286.067);
-      --radius:             0.875rem;
-      --success:           oklch(0.721 0.193 143.56);
-      --warning:           oklch(0.741 0.188 55.68);
-    }
-    [data-theme="dark"] {
-      --background:        oklch(0.141 0.005 285.823);
-      --foreground:        oklch(0.985 0 0);
-      --card:              oklch(0.21 0.006 285.885);
-      --card-foreground:   oklch(0.985 0 0);
-      --popover:           oklch(0.21 0.006 285.885);
-      --popover-foreground:oklch(0.985 0 0);
-      --primary:           oklch(0.92 0.004 286.32);
-      --primary-foreground:oklch(0.21 0.006 285.885);
-      --secondary:         oklch(0.274 0.006 286.033);
-      --secondary-foreground:oklch(0.985 0 0);
-      --muted:             oklch(0.274 0.006 286.033);
-      --muted-foreground:  oklch(0.705 0.015 286.067);
-      --accent:            oklch(0.274 0.006 286.033);
-      --accent-foreground: oklch(0.985 0 0);
-      --destructive:       oklch(0.704 0.191 22.216);
-      --border:            oklch(1 0 0 / 10%);
-      --input:             oklch(1 0 0 / 15%);
-      --ring:              oklch(0.552 0.016 285.938);
-      --success:           oklch(0.747 0.201 143.5);
-      --warning:           oklch(0.762 0.182 61.47);
-    }
-
-    /* ── Ambient blobs ── */
-    @keyframes shimmer {
-      0%   { background-position: -200% 0; }
-      100% { background-position: 200% 0; }
-    }
-
-    @keyframes fill-bar {
-      from { width: 0%; }
-      to   { width: 100%; }
-    }
-
-    @keyframes slide-out-l {
-      from { transform: translateX(0); }
-      to   { transform: translateX(calc(-100% - 20px)); }
-    }
-    @keyframes slide-out-r {
-      from { transform: translateX(0); }
-      to   { transform: translateX(calc(100% + 20px)); }
-    }
-    @keyframes slide-in-r {
-      from { transform: translateX(calc(100% + 20px)); }
-      to   { transform: translateX(0); }
-    }
-    @keyframes slide-in-l {
-      from { transform: translateX(calc(-100% - 20px)); }
-      to   { transform: translateX(0); }
-    }
-
-    @keyframes blob-drift {
-      0%   { transform: translate(0,0) scale(1); }
-      50%  { transform: translate(30px,-20px) scale(1.06); }
-      100% { transform: translate(-20px,30px) scale(0.96); }
-    }
-
-    @layer components {
-      /* Card */
-      .card {
-        @apply bg-card border border-border rounded-2xl shadow-md transition-colors duration-300;
-      }
-
-      /* Chip / pill button */
-      .chip {
-        @apply bg-card border border-border rounded-full px-3.5 py-1.5 text-card-foreground shadow-xs transition-all;
-      }
-      .chip:hover  { @apply bg-accent border-ring; }
-      .chip:active { @apply opacity-60; }
-      .chip.w-9    { @apply p-0; }
-
-      /* Copy rows */
-      .row {
-        @apply flex items-center px-4 py-3.5 transition-colors;
-      }
-      .row:active { @apply bg-muted; }
-
-      /* Icon button */
-      .icon-btn {
-        @apply flex items-center justify-center size-8 rounded-sm text-muted-foreground bg-secondary border border-transparent shrink-0 transition-colors;
-      }
-      .icon-btn:hover { @apply bg-accent text-card-foreground border-border; }
-
-      /* Primary button */
-      .btn-primary {
-        @apply flex items-center justify-center bg-primary text-primary-foreground border border-border rounded-xl px-6 py-3 text-base font-semibold tracking-tight cursor-pointer shadow-md transition-[background,border-color,transform,opacity];
-      }
-      .btn-primary:hover    { @apply bg-primary/90; }
-      .btn-primary:active   { @apply scale-[0.97] opacity-90; }
-      .btn-primary:disabled { @apply opacity-45 cursor-not-allowed scale-100; }
-
-      /* Secondary button */
-      .btn-secondary {
-        @apply inline-flex items-center justify-center bg-card text-card-foreground border border-border rounded-xl px-7 py-3 text-base font-medium cursor-pointer shadow-sm transition-all;
-      }
-      .btn-secondary:hover  { @apply bg-accent border-ring; }
-      .btn-secondary:active { @apply opacity-70; }
-
-      /* State icon circle */
-      .state-icon {
-        @apply size-20 rounded-full flex items-center justify-center mx-auto;
-      }
-
-      /* Dropdown menu */
-      .menu {
-        @apply bg-popover border border-border rounded-xl shadow-xl overflow-hidden;
-        opacity: 0;
-        transform: translateY(-8px);
-        pointer-events: none;
-        transition: opacity 0.2s, transform 0.2s;
-      }
-      .menu--up       { transform: translateY(8px); }
-      .menu.is-open   { opacity: 1; transform: translateY(0); pointer-events: all; }
-      .menu-item {
-        @apply flex items-center gap-2.5 px-4 py-2.5 text-sm font-medium text-card-foreground cursor-pointer transition-colors;
-      }
-      .menu-item:hover        { @apply bg-accent; }
-      .menu-item.is-selected  { @apply text-primary font-semibold; }
-      .menu-item + .menu-item { @apply border-t border-border; }
-      .select-trigger.is-open            { opacity: 0.8; }
-      .select-trigger.is-open .select-chevron { transform: rotate(180deg); }
-
-      /* QR wrapper */
-      .qr-wrapper {
-        @apply bg-white rounded-xl p-3.5 border border-border shadow-md inline-block;
-      }
-
-      /* Timer SVG rings */
-      .timer-ring-track    { stroke: var(--border); transition: stroke .3s; }
-      .timer-ring-progress { transform: rotate(-90deg); transform-origin: 50% 50%; transition: stroke-dashoffset 1s linear, stroke .5s; }
-      .timer-icon          { @apply text-muted-foreground; }
-
-      /* Flippable status card */
-      .status-card {
-        position: relative;
-        perspective: 1600px;
-        transition: height 0.38s cubic-bezier(.22,1,.36,1);
-      }
-      .status-card-inner {
-        position: relative; width: 100%;
-        transform-style: preserve-3d;
-        transition: transform 0.82s cubic-bezier(.22,.9,.24,1);
-      }
-      .status-card.is-flipped .status-card-inner { transform: rotateY(180deg); }
-      .status-face {
-        @apply absolute inset-0 w-full;
-        -webkit-backface-visibility: hidden;
-        backface-visibility: hidden;
-        transform-style: preserve-3d;
-      }
-      .status-face-front      { z-index: 2; }
-      .status-face-back       { transform: rotateY(180deg); }
-      .state-panel-shell      { @apply pt-px; }
-      .state-screen           { @apply hidden; }
-      .state-screen.is-active { @apply flex; }
-    }
-
-    /* ── Panel viewport: hide scrollbars ── */
-    #panel-viewport { scrollbar-width: none; }
-    #panel-viewport::-webkit-scrollbar { display: none; }
-
-    /* ── Toast ── */
-    #toast {
-      @apply fixed left-1/2 bottom-9 text-sm font-medium px-5 py-2.5 rounded-xl border border-border shadow-xl opacity-0 pointer-events-none whitespace-nowrap z-9999;
-      @apply bg-foreground/95 text-background;
-      @apply dark:bg-card/95 dark:text-card-foreground;
-      transform: translateX(-50%) translateY(12px);
-      transition: opacity 0.22s, transform 0.22s;
-    }
-
-    @keyframes state-in {
-      from { opacity: 0; transform: translateY(12px) scale(0.96); }
-      to   { opacity: 1; transform: translateY(0) scale(1); }
-    }
-
-    ::view-transition-old(root), ::view-transition-new(root) { animation: none; mix-blend-mode: normal; }
-    ::view-transition-old(root) { z-index: 1; }
-    ::view-transition-new(root) { z-index: 9; }
-
-    @media (prefers-reduced-motion: reduce) {
-      .status-card, .status-card-inner, .status-face, .timer-ring-progress {
-        transition-duration: 0.01ms !important;
-        animation-duration: 0.01ms !important;
-      }
-    }
-  </style>
-  <script defer src="https://cdn.jsdmirror.com/npm/lucide@latest/dist/umd/lucide.min.js"></script>
-  <script defer src="https://cdn.jsdmirror.com/npm/qrcodejs@latest/qrcode.min.js"></script>
-  <script defer src="https://cdn.jsdmirror.com/npm/clipboard@latest/dist/clipboard.min.js"></script>
-</head>
-
-<body
-  class="bg-background text-foreground min-h-screen flex flex-col items-center font-sans transition-colors duration-300">
-  <!-- Nav bar -->
-  <header class="w-full max-w-sm px-4 pt-8 pb-6 flex items-center justify-between relative z-10">
-    <div class="flex items-center gap-2">
-      <img src="https://www.gmwallet.app/favicon.png" alt="logo" class="h-8 w-8 rounded-sm shadow-sm" />
-      <span class="text-lg font-semibold tracking-tight text-card-foreground">GM Pay</span>
-    </div>
-    <div class="flex items-center gap-2">
-      <!-- Language pill -->
-      <div class="select-wrap relative select-none" id="dd-lang">
-        <div class="select-trigger chip flex items-center gap-1.5 cursor-pointer" onclick="toggleSelect('dd-lang')">
-          <span class="text-sm font-medium" id="lang-label">EN</span>
-          <i data-lucide="chevron-down"
-            class="select-chevron text-muted-foreground shrink-0 transition-transform duration-200" width="11"
-            height="11" stroke-width="2.5"></i>
-        </div>
-        <div class="select-menu menu absolute z-100 top-[calc(100%+12px)] right-0 min-w-40" id="dd-lang-menu">
-          <div class="select-option menu-item is-selected" data-lang="en" onclick="setLang('en')">🇺🇸&nbsp; English
-          </div>
-          <div class="select-option menu-item" data-lang="zh" onclick="setLang('zh')">🇨🇳&nbsp; 中文</div>
-          <div class="select-option menu-item" data-lang="ja" onclick="setLang('ja')">🇯🇵&nbsp; 日本語</div>
-          <div class="select-option menu-item" data-lang="ko" onclick="setLang('ko')">🇰🇷&nbsp; 한국어</div>
-          <div class="select-option menu-item" data-lang="zh-hk" onclick="setLang('zh-hk')">🇭🇰&nbsp; 繁體中文</div>
-          <div class="select-option menu-item" data-lang="ru" onclick="setLang('ru')">🇷🇺&nbsp; Русский</div>
-        </div>
-      </div>
-      <!-- Theme toggle -->
-      <button class="chip w-9 h-9 flex items-center justify-center cursor-pointer" onclick="toggleTheme(event)"
-        title="Toggle theme">
-        <i data-lucide="moon" id="icon-moon" class="hidden" width="16" height="16" stroke-width="1.8"></i>
-        <i data-lucide="sun" id="icon-sun" width="16" height="16" stroke-width="1.8"></i>
-      </button>
-      <!-- Ambient background blobs -->
-      <div class="fixed inset-0 pointer-events-none overflow-hidden" aria-hidden="true">
-        <div
-          class="absolute rounded-full blur-[80px] animate-[blob-drift_18s_ease-in-out_infinite_alternate] size-[420px] -top-30 -left-25 bg-[color-mix(in_srgb,var(--muted)_60%,transparent)]">
-        </div>
-        <div
-          class="absolute rounded-full blur-[80px] animate-[blob-drift_18s_ease-in-out_infinite_alternate] [animation-delay:-6s] size-[340px] -bottom-20 -right-15 bg-[color-mix(in_srgb,var(--success)_14%,transparent)]">
-        </div>
-        <div
-          class="absolute rounded-full blur-[80px] animate-[blob-drift_18s_ease-in-out_infinite_alternate] [animation-delay:-12s] size-[260px] top-[45%] left-[55%] bg-[color-mix(in_srgb,var(--warning)_10%,transparent)]">
-        </div>
-      </div>
-    </div>
-  </header>
-
-  <main class="flex-1 flex flex-col items-center justify-center w-full max-w-sm px-5 relative">
-
-    <!-- Steps -->
-    <div id="step-progress" class="flex items-center gap-2 w-full mb-4 select-none">
-      <div id="step-bar-1" class="h-1 flex-1 rounded-full overflow-hidden"
-        style="background:color-mix(in srgb,var(--foreground) 10%,transparent)">
-        <div id="step-fill-1" class="h-full rounded-full" style="width:0%;background:var(--foreground)"></div>
-      </div>
-      <div id="step-bar-2" class="h-1 flex-1 rounded-full overflow-hidden"
-        style="background:color-mix(in srgb,var(--foreground) 10%,transparent)">
-        <div id="step-fill-2" class="h-full rounded-full" style="width:0%;background:var(--foreground)"></div>
-      </div>
-    </div>
-
-    <!-- Order info -->
-    <aside id="order-info" class="card w-full px-6 pt-6 pb-5 mb-4">
-      <p class="text-sm font-medium text-muted-foreground mb-1" data-i18n="amount_to_pay">Amount to pay</p>
-      <div class="flex items-end gap-3 justify-between">
-        <span class="text-4xl font-bold leading-none tracking-tighter text-card-foreground font-nunito"
-          id="display-amount">--</span>
-        <button class="icon-btn mb-0.5 shrink-0" id="btn-copy-amount" title="Copy">
-          <i data-lucide="copy" width="15" height="15" stroke-width="2"></i>
-        </button>
-      </div>
-      <div class="flex items-center gap-1.5 mt-1.5" id="display-network">--</div>
-      <div class="mt-3 pt-3 border-t border-border/50">
-        <table class="w-full text-sm text-muted-foreground border-separate border-spacing-y-1">
-          <tbody>
-            <tr id="display-fiat"></tr>
-            <tr id="display-order-id"></tr>
-          </tbody>
-        </table>
-      </div>
-    </aside>
-
-    <!-- Panel viewport: clips horizontal slide -->
-    <div class="relative w-full" id="panel-viewport">
-
-      <!-- Step 1: Select coin + network -->
-      <section id="step1-panel" class="w-full mb-4 pb-4">
-        <div class="flex gap-2 mb-4">
-          <!-- Network -->
-          <div class="flex-1 min-w-0">
-            <p class="text-xs font-semibold text-muted-foreground uppercase tracking-wider mb-1.5"
-              data-i18n="network_label">Network</p>
-            <div class="select-wrap relative select-none" id="dd-network">
-              <div
-                class="select-trigger flex items-center justify-between bg-card border border-border rounded-xl px-3.5 py-3 cursor-pointer gap-2 shadow-sm transition-colors h-[50px]"
-                onclick="toggleSelect('dd-network')">
-                <span id="network-label" class="text-sm font-semibold text-card-foreground leading-none"></span>
-                <i data-lucide="chevron-down"
-                  class="select-chevron text-muted-foreground shrink-0 transition-transform duration-200" width="13"
-                  height="13" stroke-width="2.5"></i>
-              </div>
-              <div class="select-menu menu absolute z-100 top-[calc(100%+8px)] left-0 w-full" id="dd-network-menu">
-              </div>
-            </div>
-          </div>
-          <!-- Currency -->
-          <div class="flex-1 min-w-0">
-            <p class="text-xs font-semibold text-muted-foreground uppercase tracking-wider mb-1.5"
-              data-i18n="currency_label">Currency</p>
-            <div class="select-wrap relative select-none" id="dd-token">
-              <div
-                class="select-trigger flex items-center justify-between bg-card border border-border rounded-xl px-3.5 py-3 cursor-pointer gap-2 shadow-sm transition-colors h-[50px]"
-                onclick="toggleSelect('dd-token')">
-                <span id="token-label" class="text-sm font-semibold text-card-foreground"></span>
-                <i data-lucide="chevron-down"
-                  class="select-chevron text-muted-foreground shrink-0 transition-transform duration-200" width="13"
-                  height="13" stroke-width="2.5"></i>
-              </div>
-              <div class="select-menu menu absolute z-100 top-[calc(100%+8px)] left-0 w-full" id="dd-token-menu">
-              </div>
-            </div>
-          </div>
-        </div>
-        <button id="btn-confirm-step1" class="btn-primary w-full" onclick="confirmStep1()"
-          data-i18n="confirm">Confirm</button>
-      </section>
-
-      <!-- Payment panel (Step 2) -->
-      <section id="payment-panel" class="w-full pb-4" style="display:none">
-        <!-- QR + address card -->
-        <div class="card w-full px-5 pt-5 pb-0 mb-4 overflow-hidden">
-          <!-- Scan title + timer -->
-          <div class="flex items-center justify-between mb-3">
-            <p class="text-sm font-semibold text-card-foreground" data-i18n="scan_title">Scan or copy address to pay
-            </p>
-            <div id="timer-row" class="relative w-10 h-10 shrink-0">
-              <svg class="w-10 h-10 absolute inset-0" viewBox="0 0 48 48">
-                <circle class="timer-ring-track" cx="24" cy="24" r="20" fill="none" stroke-width="3" />
-                <circle id="ring-track" class="timer-ring-track" cx="24" cy="24" r="20" fill="none" stroke-width="3" />
-                <circle id="ring" class="timer-ring-progress" cx="24" cy="24" r="20" fill="none" stroke="var(--success)"
-                  stroke-width="3" stroke-linecap="round" stroke-dasharray="125.66" stroke-dashoffset="0" />
-              </svg>
-              <div class="absolute inset-0 flex items-center justify-center">
-                <i data-lucide="timer" class="timer-icon" width="18" height="18" stroke-width="1.8"></i>
-              </div>
-            </div>
-          </div>
-          <!-- Countdown -->
-          <p class="text-3xl font-bold font-mono leading-none text-success text-center mb-4" id="countdown">--:--</p>
-          <!-- QR code -->
-          <div class="flex justify-center mb-4">
-            <div class="qr-wrapper">
-              <div id="qrcode" class="w-44 h-44"></div>
-            </div>
-          </div>
-          <!-- Address row (edge-to-edge inside card) -->
-          <div class="h-px bg-border/50 -mx-5"></div>
-          <div id="copy-addr-box" class="row cursor-pointer select-none -mx-5">
-            <div class="flex-1 min-w-0 pr-3">
-              <p class="text-xs font-semibold text-muted-foreground uppercase tracking-wider mb-0.5"
-                data-i18n="payment_address">Payment address</p>
-              <p class="text-sm font-medium text-card-foreground break-all leading-relaxed" id="field-address">--</p>
-            </div>
-            <span class="icon-btn shrink-0 pointer-events-none self-start mt-0.5" id="btn-copy-addr">
-              <i data-lucide="copy" width="14" height="14" stroke-width="2"></i>
-            </span>
-          </div>
-        </div>
-        <span id="countdown-inline" class="sr-only"></span>
-        <!-- Connect Wallet (above I have transferred) -->
-        <button class="btn-secondary w-full mb-3" id="btn-connect-wallet" onclick="connectWallet()">
-          <i data-lucide="wallet" width="16" height="16" stroke-width="1.8" class="mr-1.5 shrink-0"></i>
-          <span data-i18n="connect_wallet">Connect Wallet to Pay</span>
-        </button>
-        <!-- I have transferred -->
-        <button class="btn-primary w-full mb-3" id="btn-transferred" onclick="handleTransfer()">
-          <span data-i18n="i_have_transferred">I have transferred</span>
-        </button>
-        <!-- Status -->
-        <div class="flex items-center justify-center gap-1.5 py-1" id="status-row">
-          <i data-lucide="loader-circle" class="animate-spin text-muted-foreground" width="13" height="13"
-            stroke-width="2.2"></i>
-          <span class="text-xs text-muted-foreground" id="status-text" data-i18n="checking_blockchain">Checking
-            blockchain</span>
-        </div>
-      </section>
-
-      <!-- State: Success -->
-      <section id="screen-success"
-        class="card w-full flex flex-col items-center justify-center text-center py-10 px-6 min-h-96 mb-4" role="status"
-        aria-live="polite" style="display:none">
-        <div class="state-icon bg-success/15 mb-6">
-          <i data-lucide="check" width="38" height="38" stroke-width="2.2" stroke="var(--success)"></i>
-        </div>
-        <p class="text-xl font-bold text-card-foreground mb-2" data-i18n="payment_success">Payment Successful</p>
-        <p class="text-sm text-muted-foreground mb-6" data-i18n="redirecting">Redirecting…</p>
-        <i data-lucide="loader-circle" class="animate-spin text-muted-foreground" width="22" height="22"
-          stroke-width="2"></i>
-      </section>
-
-      <!-- State: Expired -->
-      <section id="screen-expired" class="w-full pb-4" role="status" aria-live="polite" style="display:none">
-        <div class="card w-full flex flex-col items-center justify-center text-center py-10 px-6 mb-4">
-          <div class="state-icon bg-destructive/12 mb-6">
-            <i data-lucide="x" width="38" height="38" stroke-width="2.2" stroke="var(--destructive)"></i>
-          </div>
-          <p class="text-xl font-bold text-card-foreground mb-2" data-i18n="payment_expired">Payment Expired</p>
-          <p class="text-sm text-muted-foreground" data-i18n="expired_sub">Please initiate a new payment</p>
-        </div>
-        <button class="btn-secondary w-full" onclick="goBack()" data-i18n="back">Back</button>
-      </section>
-
-      <!-- State: Timeout -->
-      <section id="screen-timeout" class="w-full pb-4" role="status" aria-live="polite" style="display:none">
-        <div class="card w-full flex flex-col items-center justify-center text-center py-10 px-6 mb-4">
-          <div class="state-icon bg-warning/12 mb-6">
-            <i data-lucide="triangle-alert" width="38" height="38" stroke-width="2.2" stroke="var(--warning)"></i>
-          </div>
-          <p class="text-xl font-bold text-card-foreground mb-2" data-i18n="network_timeout">Connection Timeout</p>
-          <p class="text-sm text-muted-foreground" data-i18n="timeout_sub">Unable to connect to the payment server</p>
-        </div>
-        <div class="flex gap-3">
-          <button class="btn-secondary flex-1" onclick="goBack()" data-i18n="back">Back</button>
-          <button class="btn-primary flex-1" onclick="retryPolling()" data-i18n="retry">Retry</button>
-        </div>
-      </section>
-
-      <!-- State: Not Found -->
-      <section id="screen-not-found"
-        class="card w-full flex flex-col items-center justify-center text-center py-10 px-6 min-h-96 mb-4" role="status"
-        aria-live="polite" style="display:none">
-        <div class="state-icon bg-muted-foreground/12 mb-6">
-          <i data-lucide="file-x" width="38" height="38" stroke-width="2" stroke="var(--muted-foreground)"></i>
-        </div>
-        <p class="text-xl font-bold text-card-foreground mb-2" data-i18n="order_not_found">Order Not Found</p>
-        <p class="text-sm text-muted-foreground" data-i18n="not_found_sub">The order does not exist or has already
-          expired
-        </p>
-      </section>
-
-    </div><!-- /panel viewport -->
-
-  </main>
-
-  <!-- Footer -->
-  <footer class="flex items-center justify-center gap-2.5 pb-6 text-xs text-muted-foreground select-none relative z-10">
-    <span class="flex items-center gap-1.5">
-      Powered by
-      <a href="https://www.gmwallet.app" target="_blank" rel="noopener"
-        class="flex items-center gap-1 font-semibold text-card-foreground hover:opacity-70 transition-opacity">
-        <img src="https://www.gmwallet.app/favicon.png" alt="GM Wallet" class="h-3.5 w-3.5 rounded-xs" />
-        GM Wallet
-      </a>
-    </span>
-    <span class="opacity-30">|</span>
-    <a href="https://github.com/GMwalletApp" target="_blank" rel="noopener"
-      class="flex items-center gap-1 hover:opacity-70 transition-opacity">
-      Open source on <span class="font-semibold text-card-foreground">GitHub</span>
-    </a>
-  </footer>
-
-  <!-- Toast -->
-  <div id="toast">Copied</div>
-
-  <!-- Order data injected by server (Go template) -->
-  <script>
-    var ORDER = {
-      tradeId: "{{.TradeId}}",
-      amount: "{{.Amount}}",
-      actualAmount: "{{.ActualAmount}}",
-      token: "{{.Token}}",
-      currency: "{{.Currency}}",
-      network: "{{.Network}}",
-      receiveAddress: "{{.ReceiveAddress}}",
-      expirationTime: "{{.ExpirationTime}}",
-      redirectUrl: "{{.RedirectUrl}}",
-      createdAt: "{{.CreatedAt}}",
-      is_selected: "{{.IsSelected}}"
-    };
-  </script>
-  <script defer src="/static/payment.js"></script>
-</body>
-
-</html>

src/task/listen.go

@@ -13,24 +13,19 @@ func Start() {
 	go StartBscWebSocketListener()
 	go StartPolygonWebSocketListener()
 	go StartPlasmaWebSocketListener()
+	go StartTronBlockScannerListener()
 
 	c := cron.New()
-	// TRC20 polling
-	_, err := c.AddJob("@every 5s", ListenTrc20Job{})
-	if err != nil {
-		log.Sugar.Errorf("[task] Failed to add ListenTrc20Job: %v", err)
-		return
-	}
 
-	log.Sugar.Info("[task] ListenTrc20Job scheduled successfully (@every 5s)")
 	// Solana polling
-	_, err = c.AddJob("@every 5s", ListenSolJob{})
+	_, err := c.AddJob("@every 5s", ListenSolJob{})
 	if err != nil {
 		log.Sugar.Errorf("[task] Failed to add ListenSolJob: %v", err)
 		return
 	}
 
 	log.Sugar.Info("[task] ListenSolJob scheduled successfully (@every 5s)")
+
 	// RPC node health checks
 	_, err = c.AddJob("@every 30s", RpcHealthJob{})
 	if err != nil {
@@ -38,6 +33,7 @@ func Start() {
 		return
 	}
 	log.Sugar.Info("[task] RpcHealthJob scheduled successfully (@every 30s)")
+
 	c.Start()
 	log.Sugar.Info("[task] Task scheduler started")
 }

src/task/listen_bsc.go

@@ -66,18 +66,18 @@ func runBscListener(contracts []common.Address) {
 		}
 	}()
 
-	wsURL, ok := resolveChainWsURL(mdb.NetworkBsc, "[BSC-WS]")
+	wsNode, ok := resolveChainWsNode(mdb.NetworkBsc, "[BSC-WS]")
 	if !ok {
 		return
 	}
-	log.Sugar.Infof("[BSC-WS] connecting to %s watching %d contract(s)", wsURL, len(contracts))
+	log.Sugar.Infof("[BSC-WS] connecting using WSS node %s watching %d contract(s)", data.RpcNodeLogLabel(wsNode), len(contracts))
 
 	query := ethereum.FilterQuery{
 		Addresses: contracts,
 		Topics:    [][]common.Hash{},
 	}
 
-	runEvmWsLogListener(ctx, "[BSC-WS]", wsURL, query, func(client *ethclient.Client, vLog types.Log) {
+	runEvmWsLogListener(ctx, "[BSC-WS]", wsNode, query, func(client *ethclient.Client, vLog types.Log) {
 		if len(vLog.Topics) < 3 {
 			return
 		}

src/task/listen_chain_common.go

@@ -93,19 +93,28 @@ func loadChainTokenContracts(network, logPrefix string) []common.Address {
 // given network. If no enabled node is configured, the caller skips the
 // current listener run so admin-side disabled/deleted rows are respected.
 func resolveChainWsURL(network, logPrefix string) (string, bool) {
-	node, err := data.SelectRpcNode(network, mdb.RpcNodeTypeWs)
+	node, ok := resolveChainWsNode(network, logPrefix)
+	if !ok {
+		return "", false
+	}
+	return strings.TrimSpace(node.Url), true
+}
+
+func resolveChainWsNode(network, logPrefix string, excludeIDs ...uint64) (mdb.RpcNode, bool) {
+	node, err := data.SelectGeneralRpcNode(network, mdb.RpcNodeTypeWs, excludeIDs...)
 	if err == nil && node != nil && node.ID > 0 {
 		rpcURL := strings.TrimSpace(node.Url)
 		if rpcURL != "" {
-			return rpcURL, true
+			node.Url = rpcURL
+			return *node, true
 		}
 		log.Sugar.Errorf("%s rpc_nodes id=%d has empty url", logPrefix, node.ID)
-		return "", false
+		return mdb.RpcNode{}, false
 	}
 	if err != nil {
 		log.Sugar.Errorf("%s resolve rpc_nodes err=%v", logPrefix, err)
 	} else {
 		log.Sugar.Warnf("%s no enabled %s WS RPC node configured in rpc_nodes", logPrefix, network)
 	}
-	return "", false
+	return mdb.RpcNode{}, false
 }

src/task/listen_chain_common_test.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/GMWalletApp/epusdt/internal/testutil"
 	"github.com/GMWalletApp/epusdt/model/dao"
+	"github.com/GMWalletApp/epusdt/model/data"
 	"github.com/GMWalletApp/epusdt/model/mdb"
 )
 
@@ -42,6 +43,79 @@ func TestResolveChainWsURLWithRow(t *testing.T) {
 	}
 }
 
+func TestResolveChainWsURLIgnoresManualVerifyOnly(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	if err := dao.Mdb.Create(&mdb.RpcNode{
+		Network: mdb.NetworkEthereum,
+		Url:     "wss://paid-ethereum.example.com",
+		Type:    mdb.RpcNodeTypeWs,
+		Weight:  100,
+		Enabled: true,
+		Purpose: mdb.RpcNodePurposeManualVerify,
+		Status:  mdb.RpcNodeStatusOk,
+	}).Error; err != nil {
+		t.Fatalf("seed manual rpc_node: %v", err)
+	}
+
+	if got, ok := resolveChainWsURL(mdb.NetworkEthereum, "[TEST]"); ok {
+		t.Fatalf("resolveChainWsURL() = (%q, true), want false", got)
+	}
+}
+
+func TestResolveChainWsURLUsesGeneralWhenManualVerifyExists(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+
+	rows := []mdb.RpcNode{
+		{Network: mdb.NetworkEthereum, Url: "wss://paid-ethereum.example.com", Type: mdb.RpcNodeTypeWs, Weight: 100, Enabled: true, Purpose: mdb.RpcNodePurposeManualVerify, Status: mdb.RpcNodeStatusOk},
+		{Network: mdb.NetworkEthereum, Url: " wss://general-ethereum.example.com ", Type: mdb.RpcNodeTypeWs, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+	}
+	if err := dao.Mdb.Create(&rows).Error; err != nil {
+		t.Fatalf("seed rpc_nodes: %v", err)
+	}
+
+	got, ok := resolveChainWsURL(mdb.NetworkEthereum, "[TEST]")
+	if !ok {
+		t.Fatalf("resolveChainWsURL() ok=false, want true")
+	}
+	if got != "wss://general-ethereum.example.com" {
+		t.Fatalf("resolveChainWsURL() = %q, want general node", got)
+	}
+}
+
+func TestResolveChainWsNodeSkipsCoolingNode(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+	data.ResetRpcFailoverForTest()
+	t.Cleanup(data.ResetRpcFailoverForTest)
+
+	rows := []mdb.RpcNode{
+		{Network: mdb.NetworkEthereum, Url: "wss://primary-ethereum.example.com", Type: mdb.RpcNodeTypeWs, Weight: 100, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+		{Network: mdb.NetworkEthereum, Url: "wss://backup-ethereum.example.com", Type: mdb.RpcNodeTypeWs, Weight: 1, Enabled: true, Purpose: mdb.RpcNodePurposeGeneral, Status: mdb.RpcNodeStatusOk},
+	}
+	if err := dao.Mdb.Create(&rows).Error; err != nil {
+		t.Fatalf("seed rpc_nodes: %v", err)
+	}
+
+	primary, ok := resolveChainWsNode(mdb.NetworkEthereum, "[TEST]")
+	if !ok || primary.Url != "wss://primary-ethereum.example.com" {
+		t.Fatalf("primary node = %#v ok=%v, want primary", primary, ok)
+	}
+	for i := 0; i < data.RpcFailoverThreshold; i++ {
+		data.RecordRpcNodeFailure(primary.ID)
+	}
+
+	got, ok := resolveChainWsNode(mdb.NetworkEthereum, "[TEST]")
+	if !ok {
+		t.Fatalf("resolveChainWsNode() ok=false, want true")
+	}
+	if got.Url != "wss://backup-ethereum.example.com" {
+		t.Fatalf("resolveChainWsNode() = %#v, want backup", got)
+	}
+}
+
 func TestResolveChainWsURLDisabledRow(t *testing.T) {
 	cleanup := testutil.SetupTestDatabases(t)
 	defer cleanup()

src/task/listen_eth.go

@@ -71,18 +71,18 @@ func runEthereumListener(contracts []common.Address) {
 		}
 	}()
 
-	wsURL, ok := resolveChainWsURL(mdb.NetworkEthereum, "[ETH-WS]")
+	wsNode, ok := resolveChainWsNode(mdb.NetworkEthereum, "[ETH-WS]")
 	if !ok {
 		return
 	}
-	log.Sugar.Infof("[ETH-WS] connecting to %s watching %d contract(s)", wsURL, len(contracts))
+	log.Sugar.Infof("[ETH-WS] connecting using WSS node %s watching %d contract(s)", data.RpcNodeLogLabel(wsNode), len(contracts))
 
 	query := ethereum.FilterQuery{
 		Addresses: contracts,
 		Topics:    [][]common.Hash{},
 	}
 
-	runEvmWsLogListener(ctx, "[ETH-WS]", wsURL, query, func(client *ethclient.Client, vLog types.Log) {
+	runEvmWsLogListener(ctx, "[ETH-WS]", wsNode, query, func(client *ethclient.Client, vLog types.Log) {
 		if len(vLog.Topics) < 3 {
 			return
 		}

src/task/listen_evm_ws.go

@@ -2,8 +2,11 @@ package task
 
 import (
 	"context"
+	"fmt"
 	"time"
 
+	"github.com/GMWalletApp/epusdt/model/data"
+	"github.com/GMWalletApp/epusdt/model/mdb"
 	"github.com/GMWalletApp/epusdt/util/log"
 
 	"github.com/ethereum/go-ethereum"
@@ -11,18 +14,21 @@ import (
 	"github.com/ethereum/go-ethereum/ethclient"
 )
 
-// runEvmWsLogListener connects to wsURL, subscribes to Transfer logs,
+// runEvmWsLogListener connects to node.Url, subscribes to Transfer logs,
 // and dispatches each log to handleLog. It retries on transient errors
-// with exponential backoff. The ctx lets the caller trigger a clean
+// with exponential backoff until the node reaches the failure threshold.
-// exit — e.g. when admin disables the chain, the caller cancels the
+// The ctx lets the caller trigger a clean exit — e.g. when admin disables
-// context and the function returns instead of reconnecting forever.
+// the chain, the caller cancels the context and the function returns.
-func runEvmWsLogListener(ctx context.Context, logPrefix, wsURL string, query ethereum.FilterQuery, handleLog func(*ethclient.Client, types.Log)) {
+func runEvmWsLogListener(ctx context.Context, logPrefix string, node mdb.RpcNode, query ethereum.FilterQuery, handleLog func(*ethclient.Client, types.Log)) {
 	const (
-		minBackoff = 2 * time.Second
+		minBackoff       = 2 * time.Second
-		maxBackoff = 60 * time.Second
+		maxBackoff       = 60 * time.Second
-		rejoinWait = 3 * time.Second
+		rejoinWait       = 3 * time.Second
+		stableResetAfter = 60 * time.Second
 	)
 	failWait := minBackoff
+	wsURL := node.Url
+	nodeLabel := data.RpcNodeLogLabel(node)
 
 	for {
 		if ctx.Err() != nil {
@@ -32,6 +38,9 @@ func runEvmWsLogListener(ctx context.Context, logPrefix, wsURL string, query eth
 		client, err := ethclient.Dial(wsURL)
 		if err != nil {
 			log.Sugar.Warnf("%s dial: %v, retry in %s", logPrefix, err, failWait)
+			if recordEvmWsNodeFailure(logPrefix, node, "dial") {
+				return
+			}
 			if !sleepOrDone(ctx, failWait) {
 				return
 			}
@@ -44,6 +53,9 @@ func runEvmWsLogListener(ctx context.Context, logPrefix, wsURL string, query eth
 		if err != nil {
 			client.Close()
 			log.Sugar.Warnf("%s subscribe: %v, retry in %s", logPrefix, err, failWait)
+			if recordEvmWsNodeFailure(logPrefix, node, "subscribe") {
+				return
+			}
 			if !sleepOrDone(ctx, failWait) {
 				return
 			}
@@ -52,20 +64,26 @@ func runEvmWsLogListener(ctx context.Context, logPrefix, wsURL string, query eth
 		}
 		failWait = minBackoff
 
-		log.Sugar.Infof("%s connected, subscribed to Transfer logs", logPrefix)
+		log.Sugar.Infof("%s connected, subscribed to Transfer logs using WSS node %s", logPrefix, nodeLabel)
 
-		recvLoop(ctx, client, sub, logsCh, logPrefix, handleLog)
+		connectedAt := time.Now()
+		recvErr := recvLoop(ctx, client, sub, logsCh, logPrefix, handleLog)
 
 		if ctx.Err() != nil {
 			return
 		}
+		if time.Since(connectedAt) >= stableResetAfter {
+			data.RecordRpcNodeSuccess(node.ID)
+		} else if recvErr != nil && recordEvmWsNodeFailure(logPrefix, node, recvErr.Error()) {
+			return
+		}
 		if !sleepOrDone(ctx, rejoinWait) {
 			return
 		}
 	}
 }
 
-func recvLoop(ctx context.Context, client *ethclient.Client, sub ethereum.Subscription, logsCh <-chan types.Log, logPrefix string, handleLog func(*ethclient.Client, types.Log)) {
+func recvLoop(ctx context.Context, client *ethclient.Client, sub ethereum.Subscription, logsCh <-chan types.Log, logPrefix string, handleLog func(*ethclient.Client, types.Log)) error {
 	defer func() {
 		sub.Unsubscribe()
 		client.Close()
@@ -75,24 +93,36 @@ func recvLoop(ctx context.Context, client *ethclient.Client, sub ethereum.Subscr
 		select {
 		case <-ctx.Done():
 			log.Sugar.Infof("%s context cancelled, stopping", logPrefix)
-			return
+			return nil
 		case err := <-sub.Err():
 			if err != nil {
 				log.Sugar.Warnf("%s subscription error: %v, reconnecting", logPrefix, err)
+				return fmt.Errorf("subscription error")
 			} else {
 				log.Sugar.Warnf("%s subscription closed, reconnecting", logPrefix)
+				return fmt.Errorf("subscription closed")
 			}
-			return
 		case vLog, ok := <-logsCh:
 			if !ok {
 				log.Sugar.Warnf("%s log channel closed, reconnecting", logPrefix)
-				return
+				return fmt.Errorf("log channel closed")
 			}
 			handleLog(client, vLog)
 		}
 	}
 }
 
+func recordEvmWsNodeFailure(logPrefix string, node mdb.RpcNode, reason string) bool {
+	failures, cooling := data.RecordRpcNodeFailure(node.ID)
+	nodeLabel := data.RpcNodeLogLabel(node)
+	if !cooling {
+		log.Sugar.Warnf("%s WSS node failed (%s), node=%s failures=%d/%d", logPrefix, reason, nodeLabel, failures, data.RpcFailoverThreshold)
+		return false
+	}
+	log.Sugar.Warnf("%s WSS node reached fail threshold (%s), node=%s, resolving another node", logPrefix, reason, nodeLabel)
+	return true
+}
+
 // sleepOrDone waits for d or for ctx cancellation, whichever comes
 // first. Returns true if the sleep completed normally, false if ctx
 // was cancelled (caller should exit).

src/task/listen_plasma.go

@@ -65,18 +65,18 @@ func runPlasmaListener(contracts []common.Address) {
 		}
 	}()
 
-	wsURL, ok := resolveChainWsURL(mdb.NetworkPlasma, "[PLASMA-WS]")
+	wsNode, ok := resolveChainWsNode(mdb.NetworkPlasma, "[PLASMA-WS]")
 	if !ok {
 		return
 	}
-	log.Sugar.Infof("[PLASMA-WS] connecting to %s watching %d contract(s)", wsURL, len(contracts))
+	log.Sugar.Infof("[PLASMA-WS] connecting using WSS node %s watching %d contract(s)", data.RpcNodeLogLabel(wsNode), len(contracts))
 
 	query := ethereum.FilterQuery{
 		Addresses: contracts,
 		Topics:    [][]common.Hash{},
 	}
 
-	runEvmWsLogListener(ctx, "[PLASMA-WS]", wsURL, query, func(client *ethclient.Client, vLog types.Log) {
+	runEvmWsLogListener(ctx, "[PLASMA-WS]", wsNode, query, func(client *ethclient.Client, vLog types.Log) {
 		if len(vLog.Topics) < 3 {
 			return
 		}

src/task/listen_polygon.go

@@ -65,18 +65,18 @@ func runPolygonListener(contracts []common.Address) {
 		}
 	}()
 
-	wsURL, ok := resolveChainWsURL(mdb.NetworkPolygon, "[POLYGON-WS]")
+	wsNode, ok := resolveChainWsNode(mdb.NetworkPolygon, "[POLYGON-WS]")
 	if !ok {
 		return
 	}
-	log.Sugar.Infof("[POLYGON-WS] connecting to %s watching %d contract(s)", wsURL, len(contracts))
+	log.Sugar.Infof("[POLYGON-WS] connecting using WSS node %s watching %d contract(s)", data.RpcNodeLogLabel(wsNode), len(contracts))
 
 	query := ethereum.FilterQuery{
 		Addresses: contracts,
 		Topics:    [][]common.Hash{},
 	}
 
-	runEvmWsLogListener(ctx, "[POLYGON-WS]", wsURL, query, func(client *ethclient.Client, vLog types.Log) {
+	runEvmWsLogListener(ctx, "[POLYGON-WS]", wsNode, query, func(client *ethclient.Client, vLog types.Log) {
 		if len(vLog.Topics) < 3 {
 			return
 		}

src/task/listen_trc20_block.go

@@ -0,0 +1,473 @@
+package task
+
+import (
+	"bytes"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"io"
+	"math/big"
+	"net/http"
+	"strings"
+	"time"
+
+	tron "github.com/GMWalletApp/epusdt/crypto"
+	"github.com/GMWalletApp/epusdt/model/data"
+	"github.com/GMWalletApp/epusdt/model/mdb"
+	"github.com/GMWalletApp/epusdt/model/service"
+	"github.com/GMWalletApp/epusdt/util/log"
+)
+
+const (
+	// transfer(address,uint256) 方法签名前4字节
+	TransferMethodID = "a9059cbb"
+
+	PollInterval   = 3 * time.Second
+	RequestTimeout = 10 * time.Second
+)
+
+func HexToTronAddress(hexAddr string) (string, error) {
+	hexAddr = strings.TrimPrefix(hexAddr, "0x")
+	hexAddr = strings.TrimPrefix(hexAddr, "0X")
+
+	raw, err := hex.DecodeString(hexAddr)
+	if err != nil {
+		return "", err
+	}
+
+	// 确保有 0x41 前缀（TRON 主网地址前缀）
+	if len(raw) == 20 {
+		raw = append([]byte{0x41}, raw...)
+	}
+	if len(raw) != 21 {
+		return "", fmt.Errorf("地址长度非法: %d bytes", len(raw))
+	}
+
+	return tron.EncodeCheck(raw), nil
+}
+
+func TronAddressToHex(addr string) (string, error) {
+	addr = strings.TrimSpace(addr)
+	if addr == "" {
+		return "", fmt.Errorf("地址为空")
+	}
+	raw, err := tron.DecodeCheck(addr)
+	if err != nil {
+		return "", err
+	}
+	if len(raw) != 21 {
+		return "", fmt.Errorf("地址长度非法: %d bytes", len(raw))
+	}
+	if raw[0] != 0x41 {
+		return "", fmt.Errorf("非法 TRON 主网地址前缀: 0x%x", raw[0])
+	}
+	return strings.ToLower(hex.EncodeToString(raw)), nil
+}
+
+func normalizeTronHexAddress(hexAddr string) string {
+	hexAddr = strings.TrimSpace(hexAddr)
+	hexAddr = strings.TrimPrefix(hexAddr, "0x")
+	hexAddr = strings.TrimPrefix(hexAddr, "0X")
+	return strings.ToLower(hexAddr)
+}
+
+type BlockHeader struct {
+	RawData struct {
+		Number         int64  `json:"number"`
+		Timestamp      int64  `json:"timestamp"`
+		WitnessAddress string `json:"witness_address"`
+		ParentHash     string `json:"parentHash"`
+		Version        int    `json:"version"`
+	} `json:"raw_data"`
+}
+
+type TriggerSmartContractValue struct {
+	OwnerAddress    string `json:"owner_address"`
+	ContractAddress string `json:"contract_address"`
+	Data            string `json:"data"`
+	CallValue       int64  `json:"call_value"`
+}
+
+type ContractParam struct {
+	TypeURL string          `json:"type_url"`
+	Value   json.RawMessage `json:"value"`
+}
+
+type Transaction struct {
+	TxID    string `json:"txID"`
+	RawData struct {
+		Contract []struct {
+			Type      string        `json:"type"`
+			Parameter ContractParam `json:"parameter"`
+		} `json:"contract"`
+		Timestamp int64 `json:"timestamp"`
+		FeeLimit  int64 `json:"fee_limit"`
+	} `json:"raw_data"`
+	Ret []struct {
+		ContractRet string `json:"contractRet"`
+	} `json:"ret"`
+}
+
+type Block struct {
+	BlockID      string        `json:"blockID"`
+	BlockHeader  BlockHeader   `json:"block_header"`
+	Transactions []Transaction `json:"transactions"`
+}
+
+type TRC20Transfer struct {
+	TxID   string
+	From   string
+	To     string
+	Raw    *big.Int
+	Status string
+	Token  mdb.ChainToken
+}
+
+type TRXTransfer struct {
+	TxID   string
+	From   string
+	To     string
+	RawSun int64 // 单位: SUN
+	Status string
+}
+
+type TransferContractValue struct {
+	OwnerAddress string `json:"owner_address"`
+	ToAddress    string `json:"to_address"`
+	Amount       int64  `json:"amount"` // 单位: SUN
+}
+
+var httpClient = &http.Client{Timeout: RequestTimeout}
+
+func doPost(url string, apiKey string, body interface{}) ([]byte, error) {
+	data, _ := json.Marshal(body)
+	req, err := http.NewRequest("POST", url, bytes.NewReader(data))
+	if err != nil {
+		return nil, err
+	}
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Accept", "application/json")
+	if apiKey = strings.TrimSpace(apiKey); apiKey != "" {
+		req.Header.Set("TRON-PRO-API-KEY", apiKey)
+	}
+
+	resp, err := httpClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	b, _ := io.ReadAll(resp.Body)
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("HTTP %d: %s", resp.StatusCode, string(b))
+	}
+	return b, nil
+}
+
+func GetNowBlock(baseURL string, apiKey string) (*Block, error) {
+	b, err := doPost(baseURL+"/wallet/getnowblock", apiKey, map[string]interface{}{})
+	if err != nil {
+		return nil, err
+	}
+	var block Block
+	return &block, json.Unmarshal(b, &block)
+}
+
+func GetBlockByNum(baseURL string, apiKey string, num int64) (*Block, error) {
+	b, err := doPost(baseURL+"/wallet/getblockbynum", apiKey, map[string]interface{}{"num": num})
+	if err != nil {
+		return nil, err
+	}
+	var block Block
+	return &block, json.Unmarshal(b, &block)
+}
+
+func loadTronTRC20TokenMap() map[string]mdb.ChainToken {
+	tokens, err := data.ListEnabledChainTokensByNetwork(mdb.NetworkTron)
+	if err != nil {
+		log.Sugar.Warnf("[TRON-BLOCK] load chain_tokens: %v", err)
+		return nil
+	}
+	tokenMap := make(map[string]mdb.ChainToken)
+	for _, token := range tokens {
+		symbol := strings.ToUpper(strings.TrimSpace(token.Symbol))
+		contractAddress := strings.TrimSpace(token.ContractAddress)
+		if symbol == "TRX" || contractAddress == "" {
+			continue
+		}
+		contractHex, err := TronAddressToHex(contractAddress)
+		if err != nil {
+			log.Sugar.Warnf("[TRON-BLOCK] skip invalid TRC20 contract symbol=%s address=%s err=%v", symbol, contractAddress, err)
+			continue
+		}
+		tokenMap[contractHex] = token
+	}
+	return tokenMap
+}
+
+func parseTRC20Transfer(tx Transaction, tokenMap map[string]mdb.ChainToken) *TRC20Transfer {
+	if len(tokenMap) == 0 {
+		return nil
+	}
+	if len(tx.RawData.Contract) == 0 {
+		return nil
+	}
+	c := tx.RawData.Contract[0]
+	if c.Type != "TriggerSmartContract" {
+		return nil
+	}
+
+	var val TriggerSmartContractValue
+	if err := json.Unmarshal(c.Parameter.Value, &val); err != nil {
+		return nil
+	}
+
+	contractHex := normalizeTronHexAddress(val.ContractAddress)
+	token, ok := tokenMap[contractHex]
+	if !ok {
+		return nil
+	}
+
+	// 解析 data 字段
+	// 格式: [4字节方法ID][32字节 to 地址][32字节 amount]
+	data := strings.TrimPrefix(strings.ToLower(val.Data), "0x")
+	if len(data) < 8+64+64 {
+		return nil
+	}
+	if data[:8] != TransferMethodID {
+		return nil
+	}
+
+	// to 地址：后 40 个十六进制字符（20 字节）
+	toHex := data[8+24 : 8+64] // 跳过前12字节填充，取后20字节
+	toAddr, err := HexToTronAddress(toHex)
+	if err != nil {
+		return nil
+	}
+
+	// amount：后 32 字节大整数
+	amountHex := data[8+64 : 8+64+64]
+	amountBytes, err := hex.DecodeString(amountHex)
+	if err != nil {
+		return nil
+	}
+	amountBig := new(big.Int).SetBytes(amountBytes)
+
+	// from 地址
+	fromAddr, err := HexToTronAddress(val.OwnerAddress)
+	if err != nil {
+		fromAddr = val.OwnerAddress
+	}
+
+	// 交易状态
+	status := "SUCCESS"
+	if len(tx.Ret) > 0 && tx.Ret[0].ContractRet != "" && tx.Ret[0].ContractRet != "SUCCESS" {
+		status = tx.Ret[0].ContractRet
+	}
+
+	return &TRC20Transfer{
+		TxID:   tx.TxID,
+		From:   fromAddr,
+		To:     toAddr,
+		Raw:    amountBig,
+		Status: status,
+		Token:  token,
+	}
+}
+
+func parseTRXTransfer(tx Transaction) *TRXTransfer {
+	if len(tx.RawData.Contract) == 0 {
+		return nil
+	}
+	c := tx.RawData.Contract[0]
+	if c.Type != "TransferContract" {
+		return nil
+	}
+
+	var val TransferContractValue
+	if err := json.Unmarshal(c.Parameter.Value, &val); err != nil {
+		return nil
+	}
+	if val.Amount <= 0 {
+		return nil
+	}
+
+	fromAddr, err := HexToTronAddress(val.OwnerAddress)
+	if err != nil {
+		fromAddr = val.OwnerAddress
+	}
+	toAddr, err := HexToTronAddress(val.ToAddress)
+	if err != nil {
+		toAddr = val.ToAddress
+	}
+
+	status := "SUCCESS"
+	if len(tx.Ret) > 0 && tx.Ret[0].ContractRet != "" && tx.Ret[0].ContractRet != "SUCCESS" {
+		status = tx.Ret[0].ContractRet
+	}
+
+	return &TRXTransfer{
+		TxID:   tx.TxID,
+		From:   fromAddr,
+		To:     toAddr,
+		RawSun: val.Amount,
+		Status: status,
+	}
+}
+
+func processBlock(block *Block, tokenMap map[string]mdb.ChainToken) {
+	blockTsMs := block.BlockHeader.RawData.Timestamp
+	for _, tx := range block.Transactions {
+		if t := parseTRC20Transfer(tx, tokenMap); t != nil {
+			if t.Status != "SUCCESS" {
+				continue
+			}
+			service.TryProcessTronTRC20Transfer(t.Token, t.To, t.Raw, t.TxID, blockTsMs)
+			continue
+		}
+		if t := parseTRXTransfer(tx); t != nil {
+			if t.Status != "SUCCESS" {
+				continue
+			}
+			service.TryProcessTronTRXTransfer(t.To, t.RawSun, t.TxID, blockTsMs)
+		}
+	}
+}
+
+type Scanner struct {
+	baseURL   string
+	apiKey    string
+	nodeID    uint64
+	nodeLabel string
+	lastBlock int64
+	// 统计
+	totalBlocks   int64
+	totalTRC20Txs int64
+	totalTRXTxs   int64
+}
+
+func NewScanner() *Scanner {
+	return &Scanner{}
+}
+
+func (s *Scanner) Init() error {
+	node, err := service.ResolveTronRpcNode()
+	if err != nil {
+		return fmt.Errorf("resolve tron node: %w", err)
+	}
+	s.useRpcNode(node)
+
+	log.Sugar.Infof("[TRON-BLOCK] using RPC node %s", s.nodeLabel)
+	block, err := GetNowBlock(s.baseURL, s.apiKey)
+	if err != nil {
+		s.recordRpcFailure("initial get latest block")
+		return fmt.Errorf("获取初始块失败: %w", err)
+	}
+	s.lastBlock = block.BlockHeader.RawData.Number
+	log.Sugar.Infof("[TRON-BLOCK] start block=%d", s.lastBlock)
+	return nil
+}
+
+func (s *Scanner) useRpcNode(node *mdb.RpcNode) {
+	s.baseURL = strings.TrimRight(strings.TrimSpace(node.Url), "/")
+	s.apiKey = node.ApiKey
+	s.nodeID = node.ID
+	s.nodeLabel = data.RpcNodeLogLabel(*node)
+}
+
+func (s *Scanner) Run() {
+	log.Sugar.Info("[TRON-BLOCK] start scanning (TRC20 + TRX)")
+	ticker := time.NewTicker(PollInterval)
+	defer ticker.Stop()
+
+	statTicker := time.NewTicker(60 * time.Second)
+	defer statTicker.Stop()
+
+	for {
+		select {
+		case <-statTicker.C:
+			log.Sugar.Infof("[TRON-BLOCK] stats blocks=%d trc20=%d trx=%d", s.totalBlocks, s.totalTRC20Txs, s.totalTRXTxs)
+		case <-ticker.C:
+			s.poll()
+		}
+	}
+}
+
+func (s *Scanner) poll() {
+	latest, err := GetNowBlock(s.baseURL, s.apiKey)
+	if err != nil {
+		log.Sugar.Warnf("[TRON-BLOCK] get latest block: %v", err)
+		s.recordRpcFailure("get latest block")
+		return
+	}
+	latestNum := latest.BlockHeader.RawData.Number
+	if latestNum <= s.lastBlock {
+		data.RecordRpcNodeSuccess(s.nodeID)
+		return
+	}
+
+	tokenMap := loadTronTRC20TokenMap()
+	hadBlockFetchError := false
+	for num := s.lastBlock + 1; num <= latestNum; num++ {
+		var block *Block
+		if num == latestNum {
+			block = latest
+		} else {
+			block, err = GetBlockByNum(s.baseURL, s.apiKey, num)
+			if err != nil {
+				log.Sugar.Warnf("[TRON-BLOCK] get block %d: %v", num, err)
+				hadBlockFetchError = true
+				break
+			}
+			time.Sleep(200 * time.Millisecond)
+		}
+		processBlock(block, tokenMap)
+		s.lastBlock = num
+		s.totalBlocks++
+
+		for _, tx := range block.Transactions {
+			if parseTRC20Transfer(tx, tokenMap) != nil {
+				s.totalTRC20Txs++
+			} else if parseTRXTransfer(tx) != nil {
+				s.totalTRXTxs++
+			}
+		}
+	}
+	if hadBlockFetchError {
+		s.recordRpcFailure("get historical block")
+		return
+	}
+	data.RecordRpcNodeSuccess(s.nodeID)
+}
+
+func (s *Scanner) recordRpcFailure(reason string) {
+	failures, cooling := data.RecordRpcNodeFailure(s.nodeID)
+	if !cooling {
+		log.Sugar.Warnf("[TRON-BLOCK] RPC node failed (%s), node=%s failures=%d/%d", reason, s.nodeLabel, failures, data.RpcFailoverThreshold)
+		return
+	}
+
+	log.Sugar.Warnf("[TRON-BLOCK] RPC node reached fail threshold (%s), node=%s, trying another node", reason, s.nodeLabel)
+	node, err := service.ResolveTronRpcNode(s.nodeID)
+	if err != nil {
+		log.Sugar.Warnf("[TRON-BLOCK] no alternate RPC node available after failure, keep current node=%s: %v", s.nodeLabel, err)
+		return
+	}
+	oldLabel := s.nodeLabel
+	s.useRpcNode(node)
+	log.Sugar.Warnf("[TRON-BLOCK] switched RPC node from %s to %s", oldLabel, s.nodeLabel)
+}
+
+func StartTronBlockScannerListener() {
+	for {
+		scanner := NewScanner()
+		if err := scanner.Init(); err != nil {
+			log.Sugar.Errorf("[TRON-BLOCK] init: %v, retrying...", err)
+			time.Sleep(10 * time.Second)
+			continue
+		}
+		scanner.Run()
+		log.Sugar.Warn("[TRON-BLOCK] scanner stopped, restarting...")
+		time.Sleep(3 * time.Second)
+	}
+}

src/task/listen_trc20_block_test.go

@@ -0,0 +1,112 @@
+package task
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/GMWalletApp/epusdt/internal/testutil"
+	"github.com/GMWalletApp/epusdt/model/dao"
+	"github.com/GMWalletApp/epusdt/model/data"
+	"github.com/GMWalletApp/epusdt/model/mdb"
+)
+
+func TestTronScannerSwitchesNodeAfterFailureThreshold(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+	data.ResetRpcFailoverForTest()
+	t.Cleanup(data.ResetRpcFailoverForTest)
+
+	primary := &mdb.RpcNode{
+		Network: mdb.NetworkTron,
+		Url:     "https://primary-tron.example.com",
+		Type:    mdb.RpcNodeTypeHttp,
+		Weight:  100,
+		Enabled: true,
+		Purpose: mdb.RpcNodePurposeGeneral,
+		Status:  mdb.RpcNodeStatusOk,
+	}
+	backup := &mdb.RpcNode{
+		Network: mdb.NetworkTron,
+		Url:     "https://backup-tron.example.com",
+		Type:    mdb.RpcNodeTypeHttp,
+		Weight:  1,
+		Enabled: true,
+		Purpose: mdb.RpcNodePurposeGeneral,
+		Status:  mdb.RpcNodeStatusOk,
+	}
+	if err := dao.Mdb.Create(primary).Error; err != nil {
+		t.Fatalf("seed primary rpc_node: %v", err)
+	}
+	if err := dao.Mdb.Create(backup).Error; err != nil {
+		t.Fatalf("seed backup rpc_node: %v", err)
+	}
+
+	scanner := NewScanner()
+	scanner.useRpcNode(primary)
+	for i := 0; i < data.RpcFailoverThreshold-1; i++ {
+		scanner.recordRpcFailure("test")
+		if scanner.nodeID != primary.ID {
+			t.Fatalf("node switched before threshold to id=%d", scanner.nodeID)
+		}
+	}
+
+	scanner.recordRpcFailure("test")
+	if scanner.nodeID != backup.ID {
+		t.Fatalf("scanner node id = %d, want backup id=%d", scanner.nodeID, backup.ID)
+	}
+	if scanner.baseURL != backup.Url {
+		t.Fatalf("scanner baseURL = %q, want %q", scanner.baseURL, backup.Url)
+	}
+}
+
+func TestTronScannerStopsOnHistoricalBlockFetchError(t *testing.T) {
+	cleanup := testutil.SetupTestDatabases(t)
+	defer cleanup()
+	data.ResetRpcFailoverForTest()
+	t.Cleanup(data.ResetRpcFailoverForTest)
+
+	node := &mdb.RpcNode{
+		Network: mdb.NetworkTron,
+		Type:    mdb.RpcNodeTypeHttp,
+		Weight:  1,
+		Enabled: true,
+		Purpose: mdb.RpcNodePurposeGeneral,
+		Status:  mdb.RpcNodeStatusOk,
+	}
+	if err := dao.Mdb.Create(node).Error; err != nil {
+		t.Fatalf("seed rpc_node: %v", err)
+	}
+
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		switch r.URL.Path {
+		case "/wallet/getnowblock":
+			_ = json.NewEncoder(w).Encode(map[string]interface{}{
+				"block_header": map[string]interface{}{
+					"raw_data": map[string]interface{}{
+						"number":    3,
+						"timestamp": int64(1000),
+					},
+				},
+				"transactions": []interface{}{},
+			})
+		case "/wallet/getblockbynum":
+			http.Error(w, "temporary", http.StatusBadGateway)
+		default:
+			http.NotFound(w, r)
+		}
+	}))
+	defer server.Close()
+
+	node.Url = server.URL
+	scanner := NewScanner()
+	scanner.useRpcNode(node)
+	scanner.lastBlock = 1
+
+	scanner.poll()
+	if scanner.lastBlock != 1 {
+		t.Fatalf("lastBlock = %d, want 1 so failed block is retried", scanner.lastBlock)
+	}
+}