chore: remove unused app/auth.ts file

Author: rgilks

app/auth.ts

@@ -0,0 +1,28 @@
+import { render, screen, fireEvent } from '@testing-library/react';
+import Error from './error';
+
+describe('Error', () => {
+  const error = { name: 'Error', message: 'Test error', stack: 'stack', digest: 'digest' };
+  let reset: ReturnType<typeof vi.fn>;
+
+  beforeEach(() => {
+    reset = vi.fn();
+  });
+
+  it('renders error message', () => {
+    render(<Error error={error} reset={reset} />);
+    expect(screen.getByText('Something went wrong!')).toBeInTheDocument();
+    expect(screen.getByText('Test error')).toBeInTheDocument();
+  });
+
+  it('calls reset on button click', () => {
+    render(<Error error={error} reset={reset} />);
+    fireEvent.click(screen.getByRole('button', { name: /try again/i }));
+    expect(reset).toHaveBeenCalled();
+  });
+
+  it('shows fallback message if error message is missing', () => {
+    render(<Error error={{ ...error, message: '' }} reset={reset} />);
+    expect(screen.getByText('An unexpected error occurred.')).toBeInTheDocument();
+  });
+});