fix(a11y): close cross-app interaction gaps

job-tracker-ui/src/cv-builder-page.test.tsx

@@ -61,6 +61,11 @@ test('lists existing CVs from the variants API', async () => {
 
   expect(await screen.findByText('Frontend CV')).toBeInTheDocument();
   expect(screen.getByText('Public')).toBeInTheDocument();
+  const cvCard = screen.getByRole('link', { name: 'Open Frontend CV' });
+  cvCard.focus();
+  expect(cvCard).toHaveFocus();
+  fireEvent.keyDown(cvCard, { key: 'Enter' });
+  expect(mockNavigate).toHaveBeenCalledWith('/career/builder/1');
   expect(mockedApi.get).toHaveBeenCalledWith('/cv/variants');
 });