fix(community): persist post liked status in MySQL and local storage to prevent state loss on page switch

server/src/index.ts

@@ -1694,7 +1694,8 @@ app.get('/api/users/:id/finance-records', async (req: Request, res: Response) =>
 app.get('/api/posts', async (req: Request, res: Response) => {
   try {
     const category = req.query.category ? String(req.query.category) : undefined;
-    const posts = await repo.getPosts(category);
+    const userId = Number(req.query.userId || req.headers['x-user-id']) || 1001;
+    const posts = await repo.getPosts(category, undefined, '正常', userId);
     res.json({
       code: 20000,
       data: posts
@@ -1804,11 +1805,13 @@ app.post('/api/posts', async (req: Request, res: Response) => {
 
 app.post('/api/posts/:id/like', async (req: Request, res: Response) => {
   try {
-    const result = await repo.likePost(String(req.params.id));
+    const userId = Number(req.body?.userId || req.query.userId || req.headers['x-user-id']) || 1001;
+    const action = req.body?.action as 'like' | 'unlike' | undefined;
+    const result = await repo.likePost(String(req.params.id), userId, action);
     res.json({
       code: 20000,
       data: result,
-      message: '点赞成功'
+      message: result.liked ? '点赞成功' : '已取消点赞'
     });
   } catch (err: any) {
     res.status(400).json({ code: 40000, message: err.message });