feat(web): 工作台页面改造 — 管理员/运营数据改用真实 API

- AdminDashboard 移除硬编码模块列表，改用 system-health/user-activity/modules API
- OperatorWorkbench 移除硬编码积分动态和文章统计，改用 points-recent-activity/article-stats API
- 新增 dashboard.ts API 客户端，AxiosResponse 解包到 data.data
- Home.tsx 集成 4 个角色工作台组件路由
- useDashboardRole 支持 health_manager 角色

apps/web/src/api/health/dashboard.ts

@@ -0,0 +1,69 @@
+import client from '../client';
+
+export interface ServiceHealthStatus {
+  name: string;
+  status: string;
+  message: string;
+  response_ms: number | null;
+}
+
+export interface SystemHealthResp {
+  services: ServiceHealthStatus[];
+  checked_at: string;
+}
+
+export interface RoleCount {
+  role: string;
+  count: number;
+}
+
+export interface UserActivityResp {
+  daily_active: number;
+  weekly_active: number;
+  monthly_active: number;
+  total_registered: number;
+  by_role: RoleCount[];
+}
+
+export interface ModuleStatusResp {
+  name: string;
+  display_name: string;
+  description: string;
+  active: boolean;
+  entity_count: number | null;
+  route_count: number | null;
+}
+
+export interface PointsActivityItem {
+  id: string;
+  user_name: string;
+  detail: string;
+  amount: string;
+  type: string;
+  created_at: string;
+}
+
+export interface ArticleStatsResp {
+  published: number;
+  draft: number;
+  pending_review: number;
+  rejected: number;
+  total_views: number;
+}
+
+export const dashboardApi = {
+  getSystemHealth: () =>
+    client.get('/health/admin/system-health').then((r) => r.data.data as SystemHealthResp),
+
+  getUserActivity: () =>
+    client.get('/health/admin/user-activity').then((r) => r.data.data as UserActivityResp),
+
+  getModuleStatus: () =>
+    client.get('/health/admin/modules').then((r) => r.data.data as ModuleStatusResp[]),
+
+  getPointsRecentActivity: () =>
+    client.get('/health/points/recent-activity').then((r) => r.data.data as PointsActivityItem[]),
+
+  getArticleStats: () =>
+    client.get('/health/articles/stats').then((r) => r.data.data as ArticleStatsResp),
+};