feat: voucher purchase flow

src/Controller/Booking/Create/IndexController.php

@@ -11,9 +11,11 @@ use App\Exception\NoRoomsAvailableException;
 use App\Exception\TravelNotFoundException;
 use App\Htmx\HxTrait;
 use App\Model\BookingQueryParams;
+use App\Model\PurchaseFlow;
 use App\Service\BookingConfigurator;
 use App\Service\BookingSessionManager;
 use App\Service\BookingSummaryAssembler;
+use App\Service\PurchaseFlowResolver;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
@@ -36,6 +38,7 @@ class IndexController extends AbstractController
         private readonly BookingSessionManager $bookingSessionService,
         private readonly AgencyLoader $agencyLoader,
         private readonly BookingSummaryAssembler $summaryDataService,
+        private readonly PurchaseFlowResolver $purchaseFlowResolver,
     ) {
     }
 
@@ -103,6 +106,7 @@ class IndexController extends AbstractController
 
             // Create fresh booking session with the provided parameters
             $bookingDto = $this->bookingService->startFreshBooking($request, $dateId, $hotelId, $agencyId);
+            $this->purchaseFlowResolver->markStarted($request, PurchaseFlow::Booking);
 
             // Warm the CMS cache early so data is available on the login page
             $this->summaryDataService->getCmsDataForProduct(