ensure mocks are used wherever possible, more test fixes

src/pages/admin/components/AuthView.test.tsx

@@ -5,6 +5,7 @@ import { describe, it, expect, vi, beforeEach, type Mock } from 'vitest';
 import { AuthView } from './AuthView';
 import * as apiClient from '../../../services/apiClient';
 import { notifySuccess, notifyError } from '../../../services/notificationService';
+import { createMockUser } from '../../../tests/utils/mockFactories';
 
 const mockedApiClient = vi.mocked(apiClient, true);
 
@@ -18,7 +19,7 @@ const defaultProps = {
 
 const setupSuccessMocks = () => {
   const mockAuthResponse = {
-    user: { user_id: '123', email: 'test@example.com' },
+    user: createMockUser({ user_id: '123', email: 'test@example.com' }),
     token: 'mock-token',
   };
   (mockedApiClient.loginUser as Mock).mockResolvedValue(new Response(JSON.stringify(mockAuthResponse)));