feat(admin): 方案A—消息铃铛接真实待办聚合 + 清理空壳接口与空卡片

【消息铃铛（真实数据）】
- POST /api/message/list 改为待办聚合：待接单订单/待审核大神/待审核提现/待处理举报/待仲裁工单（复用 getDashboardTodos + 新增 pendingOrdersCount）
- POST /api/message/read 持久化已读：新表 admin_message_reads 记录"已读时的数量"，待办数量增加会重新变未读
- 两个接口均加 requireAdmin（待办数量属运营数据，不再匿名可见）

【删除空壳/死接口（前端已无调用方）】
- /api/user/save-info、/api/chat/list、/api/user/my-team/list、/api/user/latest-activity、/api/user/my-project/list

【后台页面清理】
- 「用户与个人中心 → 管理员资料」移除 我的项目/最近动态/我的团队/站内通知 四张空卡（保留真实的管理员资料头部）
- 删除对应 4 个组件；api/user-center.ts 移除 queryMyProjectList/queryMyTeamList/queryLatestActivity/saveUserInfo；api/message.ts 移除 queryChatList

【验证】
- 新增 admin-todo-bell.spec.ts；更新 admin-demo-data-cleanup.spec.ts
- 全量 101 套件 / 690 用例全绿；冒烟 8/8（未登录50008、待办数量、已读、新增后重新未读）
- 后台 pnpm build 通过

server/tests/admin-demo-data-cleanup.spec.ts

@@ -18,16 +18,21 @@ describe('第六十五批后台演示数据清理闸门', () => {
     expect(indexCode).not.toContain('MySQL 数据库就绪');
   });
 
-  it('相关接口返回空数组（由前端展示空态）', () => {
+  it('相关空壳接口已移除（后台不再展示演示卡片）', () => {
     for (const marker of [
       "app.all('/api/user/my-team/list'",
       "app.all('/api/user/latest-activity'",
-      "app.all('/api/message/list'",
+      "app.all('/api/user/my-project/list'",
+      "app.all('/api/user/save-info'",
+      "app.all('/api/chat/list'",
     ]) {
-      const start = indexCode.indexOf(marker);
-      expect(start).toBeGreaterThan(-1);
-      const block = indexCode.slice(start, start + 220);
-      expect(block).toContain('data: []');
+      expect(indexCode).not.toContain(marker);
     }
   });
+
+  it('消息中心改为真实待办聚合', () => {
+    expect(indexCode).toContain("app.post('/api/message/list'");
+    expect(indexCode).toContain('buildAdminTodoItems');
+    expect(indexCode).toContain('pending_orders');
+  });
 });

server/tests/admin-todo-bell.spec.ts

@@ -0,0 +1,54 @@
+// 已读取AGENTS.md
+import * as fs from 'fs';
+import * as path from 'path';
+
+/**
+ * 第八十五批：后台消息铃铛接真实待办聚合 + 清理空壳接口与空卡片。
+ */
+describe('第八十五批后台待办消息闸门', () => {
+  const root = path.resolve(__dirname, '../../');
+  const read = (p: string) => fs.readFileSync(path.join(root, p), 'utf-8');
+  const exists = (p: string) => fs.existsSync(path.join(root, p));
+  const indexCode = read('server/src/index.ts');
+  const repoCode = read('server/src/db/repository.ts');
+  const mysqlCode = read('server/src/db/mysql.ts');
+  const admin = 'admin/arco-design-pro-vite/src';
+
+  it('空壳接口已删除（无调用方）', () => {
+    for (const m of [
+      "app.all('/api/user/save-info'",
+      "app.all('/api/chat/list'",
+      "app.all('/api/user/my-team/list'",
+      "app.all('/api/user/latest-activity'",
+      "app.all('/api/user/my-project/list'",
+    ]) {
+      expect(indexCode).not.toContain(m);
+    }
+  });
+
+  it('消息铃铛改为真实待办聚合，且需管理员鉴权', () => {
+    expect(indexCode).toContain("app.post('/api/message/list', requireAdmin");
+    expect(indexCode).toContain("app.post('/api/message/read', requireAdmin");
+    expect(indexCode).toContain('buildAdminTodoItems');
+    for (const k of ['pending_orders', 'pending_audits', 'pending_withdrawals', 'pending_reports', 'pending_arbitrations']) {
+      expect(indexCode).toContain(k);
+    }
+  });
+
+  it('待办已读状态持久化（数量增加会重新变未读）', () => {
+    expect(mysqlCode).toContain('admin_message_reads');
+    expect(repoCode).toContain('async getAdminTodoReadCounts(');
+    expect(repoCode).toContain('async markAdminTodosRead(');
+    expect(repoCode).toContain('pendingOrdersCount');
+  });
+
+  it('后台移除空卡片与死函数', () => {
+    for (const f of ['my-team.vue', 'latest-activity.vue', 'my-project.vue', 'latest-notification.vue']) {
+      expect(exists(`${admin}/views/user/info/components/${f}`)).toBe(false);
+    }
+    expect(read(`${admin}/api/user-center.ts`)).not.toContain('queryMyTeamList');
+    expect(read(`${admin}/api/user-center.ts`)).not.toContain('queryLatestActivity');
+    expect(read(`${admin}/api/message.ts`)).not.toContain('queryChatList');
+    expect(read(`${admin}/views/user/info/index.vue`)).toContain('UserInfoHeader');
+  });
+});