chore(website): optimize bundle size

packages/website/src/pages/Home.tsx

@@ -1,6 +1,5 @@
 /* eslint-disable react-dom/no-dangerously-set-innerhtml */
 import { Bot, Box, MessageSquare, PlayCircle, Shield, Sparkles, Users, Zap } from 'lucide-react'
-import { PageAgent } from 'page-agent'
 import { useEffect, useState } from 'react'
 import { useTranslation } from 'react-i18next'
 import { Link, useSearchParams } from 'wouter'
@@ -59,13 +58,12 @@ export default function HomePage() {
 	const handleExecute = async () => {
 		if (!task.trim()) return
 
-		let pageAgent: PageAgent
 		const win = window as any
 
-		if (win.pageAgent && !win.pageAgent.disposed) {
-			pageAgent = win.pageAgent
-		} else {
-			pageAgent = new PageAgent({
+		// Lazy load PageAgent only when user clicks execute
+		if (!win.pageAgent || win.pageAgent.disposed) {
+			const { PageAgent } = await import('page-agent')
+			win.pageAgent = new PageAgent({
 				// 把 react 根元素排除掉，挂了很多冒泡时间导致假阳
 				interactiveBlacklist: [document.getElementById('root')!],
 				language: i18n.language as any,
@@ -92,11 +90,9 @@ export default function HomePage() {
 						? import.meta.env.LLM_API_KEY
 						: DEMO_API_KEY,
 			})
-			win.pageAgent = pageAgent
 		}
 
-		const result = await pageAgent.execute(task)
-
+		const result = await win.pageAgent.execute(task)
 		console.log(result)
 	}