Migrate frontend realtime messaging to SSE.

Switch service integrations and screen/store consumers from websocket events to SSE, and ignore generated dist-web artifacts.

Made-with: Cursor

src/screens/home/HomeScreen.tsx

@@ -15,6 +15,8 @@ import {
   TouchableOpacity,
   NativeScrollEvent,
   NativeSyntheticEvent,
+  Alert,
+  Clipboard,
 } from 'react-native';
 import { SafeAreaView, useSafeAreaInsets } from 'react-native-safe-area-context';
 import { useNavigation } from '@react-navigation/native';
@@ -357,8 +359,16 @@ export const HomeScreen: React.FC = () => {
   };
 
   // 分享帖子
-  const handleShare = (post: Post) => {
-    void post;
+  const handleShare = async (post: Post) => {
+    if (!post?.id) return;
+    try {
+      await postService.sharePost(post.id);
+    } catch (error) {
+      console.error('上报分享次数失败:', error);
+    }
+    const postUrl = `https://browser.littlelan.cn/posts/${encodeURIComponent(post.id)}`;
+    Clipboard.setString(postUrl);
+    Alert.alert('已复制', '帖子链接已复制到剪贴板');
   };
 
   // 删除帖子