feat(web): migrate account and user management to React

Add React account and user administration flows, including TOTP and SSO handling. Route /next SSO callbacks to React while preserving the existing Vue and native app behavior, and cover the routing policy with API tests.

web-react/src/layout/AppShell.tsx

@@ -2,6 +2,7 @@ import { useEffect, useMemo, useState } from 'react'
 import {
   AppstoreOutlined,
   BellOutlined,
+  ExportOutlined,
   IdcardOutlined,
   MenuFoldOutlined,
   MenuUnfoldOutlined,
@@ -31,6 +32,7 @@ export default function AppShell() {
     ...(user?.roles.includes('SuperAdmin')
       ? [{ key: '/users', icon: <SafetyCertificateOutlined />, label: '用户与权限' }]
       : []),
+    { key: 'legacy', icon: <ExportOutlined />, label: '返回现有系统' },
   ], [user?.roles])
 
   const pageTitle = items.find((item) => location.pathname.startsWith(item.key))?.label ?? '迁移预览'
@@ -58,9 +60,15 @@ export default function AppShell() {
           className="shell-menu"
           theme="dark"
           mode="inline"
-          selectedKeys={[items.find((item) => location.pathname.startsWith(item.key))?.key ?? '/dashboard']}
+          selectedKeys={[items.find((item) => item.key.startsWith('/') && location.pathname.startsWith(item.key))?.key ?? '/dashboard']}
           items={items}
-          onClick={({ key }) => navigate(key)}
+          onClick={({ key }) => {
+            if (key === 'legacy') {
+              window.location.assign(import.meta.env.VITE_LEGACY_APP_URL ?? 'http://localhost:5255')
+              return
+            }
+            navigate(key)
+          }}
         />
       </Sider>
       <Layout>