feat: extract booking session handling

src/Controller/Booking/Create/Step1Controller.php

@@ -10,6 +10,7 @@ use App\Form\BookingCreateStep1Type;
 use App\Form\Model\BookingDto;
 use App\Htmx\HxTrait;
 use App\Service\BookingService;
+use App\Service\BookingSessionService;
 use App\Service\BookingSummaryDataService;
 use App\Service\RoomPricingCalculator;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
@@ -31,6 +32,7 @@ class Step1Controller extends AbstractController
 
     public function __construct(
         private readonly BookingService $bookingService,
+        private readonly BookingSessionService $bookingSessionService,
         private readonly BookingSummaryDataService $summaryDataService,
     ) {
     }
@@ -41,14 +43,14 @@ class Step1Controller extends AbstractController
     #[Route('/bookings/create/rooms', name: 'app_booking_create_step_1')]
     public function index(Request $request): Response
     {
-        $result = $this->getOrCreateBookingCreateDto($this->bookingService, $request);
+        $result = $this->getOrCreateBookingCreateDto($this->bookingSessionService, $request);
         if ($result instanceof Response) {
             return $result;
         }
         $bookingCreateDto = $result;
 
         // Get or create baseline snapshot for change detection
-        $oldRoomSelectionSnapshot = $this->bookingService->getOrCreateBaselineSnapshot($request, $bookingCreateDto);
+        $oldRoomSelectionSnapshot = $this->bookingSessionService->getOrCreateBaselineSnapshot($request, $bookingCreateDto);
 
         // Validate step access - allow step 1 or redirect to current step
         if ($redirect = $this->validateStepAccess($bookingCreateDto, 1)) {
@@ -70,10 +72,10 @@ class Step1Controller extends AbstractController
             $this->bookingService->updateBookingStatusFromRoomSelection($bookingCreateDto);
 
             $bookingCreateDto->currentStep = 2;
-            $this->bookingService->saveBookingDto($request, $bookingCreateDto, BookingDto::MODE_CREATE);
+            $this->bookingSessionService->saveBookingDto($request, $bookingCreateDto, BookingDto::MODE_CREATE);
 
             // Clear baseline snapshot when moving to step 2
-            $this->bookingService->clearBaselineSnapshot($request);
+            $this->bookingSessionService->clearBaselineSnapshot($request);
 
             return $this->redirectToRoute('app_booking_create_step_2');
         }