feat: refactoring and cleanup

src/Controller/Booking/Create/Step4Controller.php

@@ -102,7 +102,7 @@ class Step4Controller extends AbstractController
                 // Success: Store booking number in flash and clear session
                 $this->addFlash('booking_number', $bookingResponse->transactionNumber);
                 $this->clearTravelDataCache($bookingCreateDto);
-                $this->bookingService->clearBookingCreateDto($request);
+                $this->bookingService->clearBookingDto($request, BookingDto::MODE_CREATE);
 
                 return $this->hxRedirect($request, $this->generateUrl('app_booking_create_success'));
             } catch (TimeoutException $e) {
@@ -140,17 +140,11 @@ class Step4Controller extends AbstractController
     {
         // Get complete summary data (pricing, rooms, CMS data)
         $summaryData = $this->summaryDataService->getSummaryData($bookingCreateDto);
-        $availableRooms = $bookingCreateDto->travel->getAvailableRooms();
-        $groupedSelectedRooms = $this->bookingService->groupRoomSelectionsByType($summaryData['selectedRooms'], $availableRooms);
 
         return $this->render('booking/create/step_4.html.twig', [
             'bookingCreateDto' => $bookingCreateDto,
             'form' => $form->createView(),
-            'participantCount' => $summaryData['participantCount'],
-            'pricingData' => $summaryData['pricingData'],
-            'cmsData' => $summaryData['cmsData'],
-            'assignmentCounts' => $summaryData['assignmentCounts'],
-            'groupedSelectedRooms' => $groupedSelectedRooms,
+            'summaryData' => $summaryData,
             'participantPrices' => $this->priceCalculator->calculateAllParticipantIndividualPrices($bookingCreateDto),
         ]);
     }