feat: Community 页面 PostHog 事件追踪完成

Custom Hook 集成（useEventFilters.js） 页面组件追踪

src/views/Community/index.js

@@ -20,12 +20,15 @@ import { useEventFilters } from './hooks/useEventFilters';
 
 import { logger } from '../../utils/logger';
 import { useNotification } from '../../contexts/NotificationContext';
+import { usePostHogTrack } from '../../hooks/usePostHogRedux';
+import { RETENTION_EVENTS } from '../../lib/constants';
 
 // 导航栏已由 MainLayout 提供，无需在此导入
 
 const Community = () => {
   const navigate = useNavigate();
   const dispatch = useDispatch();
+  const { track } = usePostHogTrack(); // PostHog 追踪
 
   // Redux状态
   const { popularKeywords, hotEvents } = useSelector(state => state.communityData);
@@ -59,6 +62,15 @@ const Community = () => {
     dispatch(fetchHotEvents());
   }, [dispatch]);
 
+  // 🎯 PostHog 追踪：页面浏览
+  useEffect(() => {
+    track(RETENTION_EVENTS.COMMUNITY_PAGE_VIEWED, {
+      timestamp: new Date().toISOString(),
+      has_hot_events: hotEvents && hotEvents.length > 0,
+      has_keywords: popularKeywords && popularKeywords.length > 0,
+    });
+  }, [track]); // 只在组件挂载时执行一次
+
   // ⚡ 首次访问社区时，延迟显示权限引导
   useEffect(() => {
     if (showCommunityGuide) {