Add a comprehensive example showing client-side routing:
- Router setup with multiple routes (/, /about, /users, /admin)
- Route parameters (/users/:id) with the NumericIdGuard
- Navigation using Link component and programmatic Navigate/Back
- Route guards with AuthGuard for protected admin page
- Browser history integration with back/forward support
Closes#6
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
