访客落地页、在线读秒与浏览轨迹

记录进线页面与换页路径，心跳刷新活跃时间；工作台展示落地页/当前页/轨迹时间线与在线时长，嵌入脚本同步宿主 SPA 路由。

web/src/pages/WidgetEmbed.tsx

@@ -7,6 +7,11 @@ const WidgetEmbed = () => {
   const [params] = useSearchParams()
   const channelKey = useMemo(() => params.get('channel_key') || 'WK_8a3f2e', [params])
   const embedded = params.get('embedded') === '1'
+  const initialPage = useMemo(() => ({
+    url: params.get('page_url') || undefined,
+    title: params.get('page_title') || undefined,
+    referrer: params.get('referrer') || undefined,
+  }), [params])
 
   return (
     <div className="h-screen w-screen overflow-hidden bg-transparent">
@@ -15,6 +20,7 @@ const WidgetEmbed = () => {
         channelKey={channelKey}
         embedded={embedded}
         layout={embedded ? 'fill' : 'floating'}
+        initialPage={initialPage}
       />
     </div>
   )