feat: add Solana payment scanning with USDT/USDC support and wallet management API

- Rewrite Solana scanner: stateless scan with processed-signature cache, query wallet + USDT ATA + USDC ATA addresses to cover all SPL transfers
  - Add network field to transaction_lock (4-tuple unique index) and order flow
  - Add wallet management endpoints (add/list/get/status/delete) with token auth
  - Add network info to Telegram payment notification
  - Add USDC hint to test script GMPay prompt
  - Add API docs and Solana scanning docs

src/controller/comm/wallet_controller.go

@@ -0,0 +1,98 @@
+package comm
+
+import (
+	"strconv"
+
+	"github.com/assimon/luuu/model/data"
+	"github.com/assimon/luuu/model/mdb"
+	"github.com/assimon/luuu/util/constant"
+	"github.com/labstack/echo/v4"
+)
+
+type addWalletRequest struct {
+	Network string `json:"network" validate:"required"`
+	Address string `json:"address" validate:"required"`
+}
+
+type changeStatusRequest struct {
+	Status int `json:"status" validate:"required|in:1,2"`
+}
+
+// AddWallet 添加钱包地址
+func (c *BaseCommController) AddWallet(ctx echo.Context) error {
+	req := new(addWalletRequest)
+	if err := ctx.Bind(req); err != nil {
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
+	}
+	if err := c.ValidateStruct(ctx, req); err != nil {
+		return c.FailJson(ctx, err)
+	}
+	wallet, err := data.AddWalletAddressWithNetwork(req.Network, req.Address)
+	if err != nil {
+		return c.FailJson(ctx, err)
+	}
+	return c.SucJson(ctx, wallet)
+}
+
+// ListWallets 获取钱包列表
+func (c *BaseCommController) ListWallets(ctx echo.Context) error {
+	network := ctx.QueryParam("network")
+	var wallets []mdb.WalletAddress
+	var err error
+	if network != "" {
+		wallets, err = data.GetAllWalletAddressByNetwork(network)
+	} else {
+		wallets, err = data.GetAllWalletAddress()
+	}
+	if err != nil {
+		return c.FailJson(ctx, err)
+	}
+	return c.SucJson(ctx, wallets)
+}
+
+// GetWallet 获取单个钱包
+func (c *BaseCommController) GetWallet(ctx echo.Context) error {
+	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
+	if err != nil {
+		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, constant.NotAvailableWalletAddress)
+	}
+	return c.SucJson(ctx, wallet)
+}
+
+// ChangeWalletStatus 启用/禁用钱包
+func (c *BaseCommController) ChangeWalletStatus(ctx echo.Context) error {
+	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
+	if err != nil {
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
+	}
+	req := new(changeStatusRequest)
+	if err := ctx.Bind(req); err != nil {
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
+	}
+	if err := c.ValidateStruct(ctx, req); err != nil {
+		return c.FailJson(ctx, err)
+	}
+	if err := data.ChangeWalletAddressStatus(id, req.Status); err != nil {
+		return c.FailJson(ctx, err)
+	}
+	return c.SucJson(ctx, nil)
+}
+
+// DeleteWallet 删除钱包
+func (c *BaseCommController) DeleteWallet(ctx echo.Context) error {
+	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
+	if err != nil {
+		return c.FailJson(ctx, constant.ParamsMarshalErr)
+	}
+	if err := data.DeleteWalletAddressById(id); err != nil {
+		return c.FailJson(ctx, err)
+	}
+	return c.SucJson(ctx, nil)
+}