fix: 统一API响应格式并修复前端测试

- 所有Handler方法使用标准{code:0,message:"success",data:...}响应格式
- 修复Cursor分页响应包装(GetAllDevices,GetLoginLogs,ListUsers等)
- 修复AuthHandler和SMSHandler认证方法响应格式
- 修复operation_log.go admin用户operation_type前缀问题
- 修复DashboardPage嵌套stats结构
- 修复LoginLogsPage reset功能stale closure问题
- 修复UsersPage批量操作API调用
- 修复多个前端测试(mock格式、按钮选择、断言逻辑)
- 添加OAuth测试域名白名单
- 新增代码审查流程文档

frontend/admin/src/services/service_tests.test.ts

@@ -19,17 +19,21 @@ describe('stats service', () => {
 
   it('gets dashboard stats', async () => {
     const mockData = {
-      total_users: 100,
-      active_users: 80,
-      inactive_users: 10,
-      locked_users: 5,
-      disabled_users: 5,
-      today_new_users: 3,
-      week_new_users: 15,
-      month_new_users: 50,
-      today_success_logins: 50,
-      today_failed_logins: 2,
-      week_success_logins: 300,
+      users: {
+        total_users: 100,
+        active_users: 80,
+        inactive_users: 10,
+        locked_users: 5,
+        disabled_users: 5,
+        new_users_today: 3,
+        new_users_week: 15,
+        new_users_month: 50,
+      },
+      logins: {
+        logins_today_success: 50,
+        logins_today_failed: 2,
+        logins_week: 300,
+      },
     }
     getMock.mockResolvedValue(mockData)
 
@@ -38,8 +42,8 @@ describe('stats service', () => {
 
     expect(getMock).toHaveBeenCalledWith('/admin/stats/dashboard')
     expect(result).toEqual(mockData)
-    expect(result.total_users).toBe(100)
-    expect(result.active_users).toBe(80)
+    expect(result.users.total_users).toBe(100)
+    expect(result.users.active_users).toBe(80)
   })
 
   it('gets user stats', async () => {