feat: expand livestream management platform

frontend/src/admin/AdminLayout.tsx

@@ -1,4 +1,4 @@
-import { useState } from 'react'
+import { Suspense, useEffect, useState } from 'react'
 import { Outlet, useNavigate, useLocation } from 'react-router-dom'
 import { Layout, Menu, Button, Typography } from 'antd'
 import {
@@ -20,6 +20,16 @@ const menuItems = [
   { key: '/admin/settings', icon: <SettingOutlined />, label: '系统设置' },
 ]
 
+const adminPageImports = [
+  () => import('./pages/Dashboard'),
+  () => import('./pages/LiveBoard'),
+  () => import('./pages/StreamList'),
+  () => import('./pages/StreamForm'),
+  () => import('./pages/ReplayEditor'),
+  () => import('./pages/NodeManager'),
+  () => import('./pages/Settings'),
+]
+
 export default function AdminLayout() {
   const { brand } = useBrand()
   const [collapsed, setCollapsed] = useState(false)