feat(react19-migration): 阶段3 - 状态管理与路由

- T3.1: 创建 useAuthStore (Zustand) - login/logout/initFromStorage
- T3.2: 创建 usePermissionStore (Zustand) - fetchUserMenus/hasPermission/hasRole
- T3.3: 创建 useAppStore (Zustand) - collapsed 状态管理
- T3.4: 创建 React Router v7 数据路由配置 (createBrowserRouter)
- T3.5: 创建 authLoader 路由守卫 (token校验→初始化→权限加载)
- 创建占位页面组件 (13个路由页面 + DefaultLayout)
- 更新 App.tsx 使用 RouterProvider
- 安装 jwt-decode 依赖

验证: npx tsc --noEmit 通过, npm run dev 启动成功

novalon-manage-web/src/router/index.tsx

@@ -0,0 +1,48 @@
+import { createBrowserRouter, Navigate } from 'react-router'
+import { authLoader } from './guards'
+import {
+  DefaultLayout,
+  Login,
+  Dashboard,
+  UserManagement,
+  RoleManagement,
+  MenuManagement,
+  ConfigManagement,
+  DictManagement,
+  FileManagement,
+  NoticeManagement,
+  LoginLog,
+  OperationLog,
+  ExceptionLog,
+  Forbidden,
+} from './routes'
+
+export const router = createBrowserRouter([
+  {
+    path: '/login',
+    element: <Login />,
+  },
+  {
+    path: '/403',
+    element: <Forbidden />,
+  },
+  {
+    path: '/',
+    element: <DefaultLayout />,
+    loader: authLoader,
+    children: [
+      { index: true, element: <Navigate to="/dashboard" replace /> },
+      { path: 'dashboard', element: <Dashboard /> },
+      { path: 'users', element: <UserManagement /> },
+      { path: 'roles', element: <RoleManagement /> },
+      { path: 'menus', element: <MenuManagement /> },
+      { path: 'sys/config', element: <ConfigManagement /> },
+      { path: 'dict', element: <DictManagement /> },
+      { path: 'files', element: <FileManagement /> },
+      { path: 'notice', element: <NoticeManagement /> },
+      { path: 'loginlog', element: <LoginLog /> },
+      { path: 'oplog', element: <OperationLog /> },
+      { path: 'exceptionlog', element: <ExceptionLog /> },
+    ],
+  },
+])