fix(mining-admin-web): 修复auth API类型定义

更新 TypeScript 类型以匹配后端响应格式:
- ApiResponse<T> 包装器
- LoginData 和 ProfileData 接口

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/mining-admin-web/src/lib/api/auth.api.ts

@@ -1,14 +1,32 @@
 import { apiClient } from './client';
 
+// 后端统一响应格式
+interface ApiResponse<T> {
+  success: boolean;
+  data: T;
+  timestamp: string;
+}
+
+interface LoginData {
+  token: string;
+  admin: { id: string; username: string; name: string; role: string };
+}
+
+interface ProfileData {
+  id: string;
+  username: string;
+  role: string;
+}
+
 export const authApi = {
   login: (username: string, password: string) =>
-    apiClient.post<{ accessToken: string; admin: { id: string; username: string; role: string } }>('/auth/login', {
+    apiClient.post<ApiResponse<LoginData>>('/auth/login', {
       username,
       password,
     }),
 
   getProfile: () =>
-    apiClient.get<{ id: string; username: string; role: string }>('/auth/profile'),
+    apiClient.get<ApiResponse<ProfileData>>('/auth/profile'),
 
   changePassword: (oldPassword: string, newPassword: string) =>
     apiClient.post('/auth/change-password', { oldPassword, newPassword }),