feat: add typed dto for cms data

src/Form/Model/BookingSummaryDto.php

@@ -4,6 +4,8 @@ declare(strict_types=1);
 
 namespace App\Form\Model;
 
+use App\Model\BookingSummaryCmsHotelDto;
+
 /**
  * DTO containing all booking summary data for sidebar display.
  */
@@ -17,7 +19,7 @@ class BookingSummaryDto
         public readonly int $participantCount,
         public readonly BookingSummaryPricingDto $pricing,
         public readonly BookingSummaryVoucherDto $vouchers,
-        public readonly ?array $cmsData,
+        public readonly ?BookingSummaryCmsHotelDto $cmsData,
     ) {
     }
 }