feat: move profile completeness check from login to booking flow entry

- Add profileComplete flag to User entity to avoid API calls
- Set flag during login (BpnAuthenticator) and profile save
- Check flag in IndexController when entering booking flow
- Remove ProfileCompletionSubscriber (no longer needed)

Users with incomplete profiles are only redirected when starting
a new booking, not on every login. Eliminates extra API call by
caching completeness status on the user entity.

src/Controller/Booking/Create/IndexController.php

@@ -5,6 +5,8 @@ declare(strict_types=1);
 namespace App\Controller\Booking\Create;
 
 use App\BusProNet\XmlLoader\AgencyLoader;
+use App\Controller\Account\PersonalDataController;
+use App\Entity\User;
 use App\Exception\HotelNotFoundException;
 use App\Exception\HotelNotInTravelException;
 use App\Exception\NoRoomsAvailableException;
@@ -42,17 +44,26 @@ class IndexController extends AbstractController
      *
      * Renders a loading page that triggers the actual initialization via HTMX.
      * This provides immediate visual feedback while BusProNet API calls are made.
+     * Redirects to profile completion if logged-in user has incomplete profile data.
      */
     #[Route(
         path: '/bookings/create',
         name: 'app_booking_create',
     )]
-    public function index(#[MapQueryString] ?BookingQueryParams $params): Response
+    public function index(Request $request, #[MapQueryString] ?BookingQueryParams $params): Response
     {
         if (null === $params) {
             throw $this->createNotFoundException('Invalid booking parameters provided');
         }
 
+        $user = $this->getUser();
+
+        if ($user instanceof User && false === $user->isProfileComplete()) {
+            $request->getSession()->set(PersonalDataController::SESSION_REDIRECT_KEY, $request->getUri());
+
+            return $this->redirectToRoute('app_personal_data');
+        }
+
         return $this->render('booking/create/index.html.twig', [
             'params' => $params,
         ]);