feat: add admin panel with multi-chain support and notification system

- Add full admin REST API: auth, API keys, chains, chain tokens, wallets,
  orders, RPC nodes, settings, dashboard stats, notifications
- Add JWT-based admin authentication and API key auth middleware
- Add multi-chain listeners: BSC, ETH, Polygon, Plasma, EVM WebSocket
- Add RPC node health check job with automatic failover
- Add Telegram notification channel for order events
- Add installer for first-run database initialization
- Add new DB models: admin_user, api_key, chain, chain_token,
  rpc_node, settings, notification_channel
- Add order statistics aggregation (daily/monthly/by-chain)
- Serve built admin SPA from embedded www/ assets
- Add comprehensive test coverage for all new features

src/www/assets/lib-CTYwzR3w.js

@@ -0,0 +1 @@
+import{f as e}from"./messages-BovT1T-w.js";import{a as t}from"./auth-store-BpIS8RMn.js";import{n}from"./dist-DvAgZMq72.js";function r(e){return t.useQuery(`get`,`/admin/api/v1/settings`,e?{params:{query:{group:e}}}:void 0)}function i(){return t.useMutation(`put`,`/admin/api/v1/settings`)}function a(){return t.useMutation(`delete`,`/admin/api/v1/settings/{key}`)}function o(e,t,n=``){return e?.find(e=>e.key===t)?.value??n}async function s(t,r,i=e()){await t({body:{items:r}}),n.success(i)}export{i as a,r as i,s as n,a as r,o as t};