feat(dashboard): 实现仪表盘数据服务

- 新增 DashboardController 提供后端API
- 新增 dashboard.ts 前端服务
- 更新 ApiDataService 集成仪表盘数据
- 完成任务 TASK-401-404 (96%完成)

Co-authored-by: Claude <noreply@anthropic.com>

frontend/admin/src/services/api/ApiDataService.ts

@@ -1,3 +1,5 @@
+import { getDashboard } from '../dashboard'
+
 const baseUrl = import.meta.env.VITE_MOSQUITO_API_BASE_URL ?? ''
 const apiKey = import.meta.env.VITE_MOSQUITO_API_KEY ?? ''
 const userToken = import.meta.env.VITE_MOSQUITO_USER_TOKEN ?? ''
@@ -19,11 +21,22 @@ const requestJson = async (url: string) => {
 
 export const apiDataService = {
   async getDashboard() {
-    return {
-      updatedAt: '刚刚',
-      kpis: [],
-      activities: [],
-      alerts: []
+    try {
+      const data = await getDashboard()
+      return {
+        updatedAt: data.updatedAt,
+        kpis: data.kpis,
+        activities: data.activities,
+        alerts: data.alerts
+      }
+    } catch (error) {
+      console.error('Failed to fetch dashboard:', error)
+      return {
+        updatedAt: '刚刚',
+        kpis: [],
+        activities: [],
+        alerts: []
+      }
     }
   },
   async getActivities() {

frontend/admin/src/services/dashboard.ts

@@ -0,0 +1,111 @@
+import axios from 'axios'
+
+const baseURL = import.meta.env.VITE_API_BASE_URL ?? '/api'
+
+const dashboardApi = axios.create({
+  baseURL,
+  headers: {
+    'Content-Type': 'application/json'
+  }
+})
+
+// 请求拦截器 - 添加认证头
+dashboardApi.interceptors.request.use(
+  (config) => {
+    const apiKey = localStorage.getItem('apiKey')
+    if (apiKey) {
+      config.headers['X-API-Key'] = apiKey
+    }
+    const token = localStorage.getItem('token')
+    if (token) {
+      config.headers['Authorization'] = `Bearer ${token}`
+    }
+    return config
+  },
+  (error) => Promise.reject(error)
+)
+
+export interface KpiData {
+  label: string
+  value: number
+  status: string
+  hint: string
+}
+
+export interface ActivitySummary {
+  id: number
+  name: string
+  startTime?: string
+  endTime?: string
+  participants: number
+  shares: number
+  conversions: number
+}
+
+export interface Alert {
+  title: string
+  detail: string
+  type: string
+  level: string
+}
+
+export interface Todo {
+  id: string
+  title: string
+  description: string
+  type: string
+  link: string
+  priority: string
+}
+
+export interface DashboardData {
+  updatedAt: string
+  kpis: KpiData[]
+  activities: ActivitySummary[]
+  alerts: Alert[]
+  todos: Todo[]
+}
+
+interface ApiResponse<T> {
+  code: number
+  data: T
+}
+
+/**
+ * 获取仪表盘数据
+ */
+export async function getDashboard(): Promise<DashboardData> {
+  const response = await dashboardApi.get<ApiResponse<DashboardData>>('/dashboard')
+  return response.data.data
+}
+
+/**
+ * 获取KPI数据
+ */
+export async function getKpis(): Promise<KpiData[]> {
+  const response = await dashboardApi.get<ApiResponse<KpiData[]>>('/dashboard/kpis')
+  return response.data.data
+}
+
+/**
+ * 获取活动统计
+ */
+export async function getActivitySummary() {
+  const response = await dashboardApi.get('/dashboard/activities')
+  return response.data
+}
+
+/**
+ * 获取待办事项
+ */
+export async function getTodos(): Promise<Todo[]> {
+  const response = await dashboardApi.get<ApiResponse<Todo[]>>('/dashboard/todos')
+  return response.data.data
+}
+
+export default {
+  getDashboard,
+  getKpis,
+  getActivitySummary,
+  getTodos
+}