feat(health): 线下活动管理端 CRUD + 积分统计 API + 前端页面 (Chunk 4)

后端:
- 线下活动管理: create/update/delete/list/checkin 5 个管理端接口
- 活动签到自动发放积分 (事务内原子操作)
- 积分统计 API: 总发放/总消耗/总过期/活跃账户/Top10排行

前端:
- OfflineEventList: 活动管理页面 (创建/编辑/删除/状态筛选)
- points.ts 扩展: 线下活动 + 统计 API 方法
- 侧边栏新增线下活动入口

apps/web/src/App.tsx

@@ -38,6 +38,7 @@ const ConsultationDetail = lazy(() => import('./pages/health/ConsultationDetail'
 const PointsRuleList = lazy(() => import('./pages/health/PointsRuleList'));
 const PointsProductList = lazy(() => import('./pages/health/PointsProductList'));
 const PointsOrderList = lazy(() => import('./pages/health/PointsOrderList'));
+const OfflineEventList = lazy(() => import('./pages/health/OfflineEventList'));
 
 function PrivateRoute({ children }: { children: React.ReactNode }) {
   const isAuthenticated = useAuthStore((s) => s.isAuthenticated);
@@ -182,6 +183,7 @@ export default function App() {
                       <Route path="/health/points-rules" element={<PointsRuleList />} />
                       <Route path="/health/points-products" element={<PointsProductList />} />
                       <Route path="/health/points-orders" element={<PointsOrderList />} />
+                      <Route path="/health/offline-events" element={<OfflineEventList />} />
                     </Routes>
                   </Suspense>
               </ErrorBoundary>