Adds front-end set-up

frontend/src/mocks/users/handlers.ts

@@ -0,0 +1,17 @@
+import { http, HttpResponse } from 'msw';
+import type { User } from '@/api/types';
+import { API_BASE, mockUser } from '../auth/fixtures';
+
+const mockUsers: User[] = [
+    mockUser,
+    {
+        id: '22222222-2222-2222-2222-222222222222',
+        email: 'admin@example.com',
+        name: 'Admin User',
+        role: 'Administrator',
+        isActive: true,
+    },
+];
+
+/** Placeholder user-management mocks; expanded in Unit 5. */
+export const userHandlers = [http.get(`${API_BASE}/Users`, () => HttpResponse.json(mockUsers))];