feat: 建立前端 TS 类型系统与 API 请求服务层

frontend/src/services/dashboardApi.ts

@@ -0,0 +1,17 @@
+import api from "./api";
+
+export interface DashboardStats {
+  products_total: number;
+  products_pending: number;
+  products_in_progress: number;
+  products_completed: number;
+  tasks_total: number;
+  tasks_pending: number;
+  tasks_in_progress: number;
+  tasks_completed: number;
+}
+
+export async function fetchDashboardStats(): Promise<DashboardStats> {
+  const { data } = await api.get<DashboardStats>("/dashboard/stats");
+  return data;
+}