Add health endpoint

frontend/src/test/settingsAboutSection.test.tsx

@@ -0,0 +1,23 @@
+import { render, screen } from '@testing-library/react';
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+
+import { SettingsAboutSection } from '../components/settings/SettingsAboutSection';
+
+describe('SettingsAboutSection', () => {
+  beforeEach(() => {
+    vi.stubGlobal('__APP_VERSION__', '3.2.0-test');
+    vi.stubGlobal('__COMMIT_HASH__', 'deadbeef');
+  });
+
+  afterEach(() => {
+    vi.unstubAllGlobals();
+  });
+
+  it('renders the debug support snapshot link', () => {
+    render(<SettingsAboutSection />);
+
+    const link = screen.getByRole('link', { name: /Open debug support snapshot/i });
+    expect(link).toHaveAttribute('href', '/api/debug');
+    expect(link).toHaveAttribute('target', '_blank');
+  });
+});