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

server/tests/content-security.spec.ts

@@ -945,6 +945,60 @@ describe('ContentSecurityService & Compliance Architecture (TDD 微信内容安
       expect(emojiRegex.test(communityContent)).toBe(false);
     });
   });
+
+  describe('22. 友圈广场点赞状态跨页面持久化与防重闭环验证 (MySQL post_likes & UniApp 同步)', () => {
+    it('MySQL 结构中必须包含 post_likes 用户点赞明细表及唯一防重键', () => {
+      const mysqlPath = path.join(rootDir, 'server', 'src', 'db', 'mysql.ts');
+      const content = fs.readFileSync(mysqlPath, 'utf-8');
+      expect(content).toContain('CREATE TABLE IF NOT EXISTS post_likes');
+      expect(content).toContain('post_id');
+      expect(content).toContain('user_id');
+      expect(content).toContain('uq_post_user');
+    });
+
+    it('Repository getPosts 与 likePost 必须支持用户点赞状态关联查询与双向落盘', () => {
+      const repoPath = path.join(rootDir, 'server', 'src', 'db', 'repository.ts');
+      const content = fs.readFileSync(repoPath, 'utf-8');
+      expect(content).toContain('SELECT post_id FROM post_likes WHERE user_id = ?');
+      expect(content).toContain('INSERT IGNORE INTO post_likes');
+      expect(content).toContain('DELETE FROM post_likes WHERE post_id = ? AND user_id = ?');
+    });
+
+    it('服务端路由 /api/posts 与 /api/posts/:id/like 必须支持透传 userId 与 action', () => {
+      const indexPath = path.join(rootDir, 'server', 'src', 'index.ts');
+      const content = fs.readFileSync(indexPath, 'utf-8');
+      expect(content).toContain("app.get('/api/posts'");
+      expect(content).toContain("app.post('/api/posts/:id/like'");
+      expect(content).toContain("'like' | 'unlike'");
+    });
+
+    it('UniApp API 层与社区页面必须通过本地存储双重保障切页不丢点赞状态', () => {
+      const apiPath = path.join(rootDir, 'pwuniapp', 'common', 'api.js');
+      const apiContent = fs.readFileSync(apiPath, 'utf-8');
+      expect(apiContent).toContain('COMMUNITY_LIKED_POST_IDS');
+
+      const communityPath = path.join(rootDir, 'pwuniapp', 'pages', 'community', 'index.vue');
+      const communityContent = fs.readFileSync(communityPath, 'utf-8');
+      expect(communityContent).toContain('COMMUNITY_LIKED_POST_IDS');
+      expect(communityContent).toContain('syncInitialLikedState');
+      expect(communityContent).toContain('uni.setStorageSync(\'COMMUNITY_LIKED_POST_IDS\'');
+    });
+
+    it('所有新增的点赞持久化代码与测试严禁包含任何系统 Emoji 违规字符', () => {
+      const mysqlPath = path.join(rootDir, 'server', 'src', 'db', 'mysql.ts');
+      const repoPath = path.join(rootDir, 'server', 'src', 'db', 'repository.ts');
+      const indexPath = path.join(rootDir, 'server', 'src', 'index.ts');
+      const apiPath = path.join(rootDir, 'pwuniapp', 'common', 'api.js');
+      const communityPath = path.join(rootDir, 'pwuniapp', 'pages', 'community', 'index.vue');
+
+      const emojiRegex = /(?:\p{Extended_Pictographic}|\p{Emoji_Presentation}|[\u2600-\u27BF])/u;
+      expect(emojiRegex.test(fs.readFileSync(mysqlPath, 'utf-8'))).toBe(false);
+      expect(emojiRegex.test(fs.readFileSync(repoPath, 'utf-8'))).toBe(false);
+      expect(emojiRegex.test(fs.readFileSync(indexPath, 'utf-8'))).toBe(false);
+      expect(emojiRegex.test(fs.readFileSync(apiPath, 'utf-8'))).toBe(false);
+      expect(emojiRegex.test(fs.readFileSync(communityPath, 'utf-8'))).toBe(false);
+    });
+  });
 });