## Summary
- redirect guest access to protected routes based on returning-user
cookie
- send new PWA guests to registration and returning guests to login
- persist returning-user cookie after register, login, and 2FA login
- keep explicit login links working via `force=1`
## Testing
- vendor/bin/pint --dirty --format agent
- php artisan test --compact tests/Feature/Auth/AuthenticationTest.php
tests/Feature/DashboardTest.php tests/Feature/Auth/RegistrationTest.php
905edeb4a2