fix: 全面优化安全、性能和代码质量

P0: 环境变量校验/事务保护/RBAC权限
P1: 花名册分页/密码重置验证码/ErrorBoundary/N+1查询优化
P2: 导出限制/自定义错误类/body大小限制/代码去重
P3: 自定义确认弹窗替换window.confirm

frontend/src/main.tsx

@@ -3,6 +3,8 @@ import ReactDOM from 'react-dom/client'
 import { BrowserRouter } from 'react-router-dom'
 import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
 import App from './App'
+import ErrorBoundary from './components/ErrorBoundary'
+import { ConfirmProvider } from './hooks/useConfirm'
 import './index.css'
 
 const queryClient = new QueryClient({
@@ -19,7 +21,11 @@ ReactDOM.createRoot(document.getElementById('root')!).render(
   <React.StrictMode>
     <BrowserRouter future={{ v7_startTransition: true, v7_relativeSplatPath: true }}>
       <QueryClientProvider client={queryClient}>
-        <App />
+        <ErrorBoundary>
+          <ConfirmProvider>
+            <App />
+          </ConfirmProvider>
+        </ErrorBoundary>
       </QueryClientProvider>
     </BrowserRouter>
   </React.StrictMode>,