test: move the auth card test under __tests__

Frontend component tests belong in an adjacent __tests__ directory per the repo convention in AGENTS.md, and this file was added directly under src/components in this branch.

Author: dustinhealy

src/components/AuthCard.test.tsx …c/components/__tests__/AuthCard.test.tsxsrc/components/AuthCard.test.tsx renamed to src/components/__tests__/AuthCard.test.tsx src/components/AuthCard.test.tsx renamed to src/components/__tests__/AuthCard.test.tsx

@@ -3,7 +3,7 @@ import { render, screen, waitFor, fireEvent } from '@testing-library/react';
 import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
 import type * as t from '@/types';
 import { openidLoginFn } from '@/server';
-import { AuthCard } from './AuthCard';
+import { AuthCard } from '../AuthCard';
 
 vi.mock('@/server', () => ({
   adminLoginFn: vi.fn(),