feat: tracking integration with GTM and CMP

src/Controller/Booking/Create/Step4Controller.php

@@ -92,8 +92,11 @@ class Step4Controller extends AbstractController
                     );
                 }
 
-                // Success: Store booking number in flash and clear session
+                // Success: Store booking data in flash for conversion tracking
+                $summaryData = $this->summaryDataService->getSummaryData($bookingCreateDto);
                 $this->addFlash('booking_number', $bookingResponse->bookingNumber);
+                $this->addFlash('booking_total', $summaryData->payableAmount);
+                $this->addFlash('booking_travel_name', $bookingCreateDto->travel->label);
                 $this->clearTravelDataCache($bookingCreateDto);
                 $this->bookingService->clearBookingDto($request, BookingDto::MODE_CREATE);
 

src/Controller/Booking/Create/SuccessController.php

@@ -23,7 +23,10 @@ class SuccessController extends AbstractController
     #[Route('/bookings/create/success', name: 'app_booking_create_success')]
     public function success(Request $request): Response
     {
-        $bookingNumber = $request->getSession()->getFlashBag()->get('booking_number')[0] ?? null;
+        $flashBag = $request->getSession()->getFlashBag();
+        $bookingNumber = $flashBag->get('booking_number')[0] ?? null;
+        $bookingTotal = $flashBag->get('booking_total')[0] ?? null;
+        $travelName = $flashBag->get('booking_travel_name')[0] ?? null;
         $returnUrl = $this->bookingService->getReturnUrl($request);
 
         // Redirect to return URL if no booking number (direct access or refresh)
@@ -33,6 +36,8 @@ class SuccessController extends AbstractController
 
         return $this->render('booking/create/success.html.twig', [
             'bookingNumber' => $bookingNumber,
+            'bookingTotal' => $bookingTotal,
+            'travelName' => $travelName,
             'returnUrl' => $returnUrl,
         ]);
     }