perf(web): warm frequent routes during idle time

vehicle-data-platform/apps/web/src/v2/layout/AppShell.tsx

@@ -11,10 +11,10 @@ import {
   IconUser,
   IconExit
 } from '@douyinfe/semi-icons';
-import { useState } from 'react';
+import { useEffect, useState } from 'react';
 import { NavLink, Outlet, useLocation } from 'react-router-dom';
 import { usePlatformSession } from '../auth/AuthGate';
-import { preloadRoute } from '../routing/routeModules';
+import { preloadRoute, scheduleIdleRoutePreloads } from '../routing/routeModules';
 
 const navigation = [
   { to: '/monitor', label: '全局监控', icon: IconHome },
@@ -39,9 +39,11 @@ const pageNames: Record<string, string> = {
 
 export function AppShell() {
   const location = useLocation();
+  const [initialPathname] = useState(() => location.pathname);
   const section = location.pathname.split('/')[1] || 'monitor';
   const { session, logout } = usePlatformSession();
   const roleLabel = { viewer: '只读', operator: '处置员', admin: '管理员' }[session.role];
+  useEffect(() => scheduleIdleRoutePreloads({ activePathname: initialPathname }), [initialPathname]);
 
   return (
     <div className="v2-shell">