feat: show room prices in room assignment form field

src/Service/RoomAssignmentService.php

@@ -66,7 +66,7 @@ class RoomAssignmentService
         $availableRooms = $dto->travel->getAvailableRooms();
 
         foreach ($selectedRooms as $roomSelection) {
-            $room = $availableRooms[$roomSelection->roomId] ?? null;
+            $room = $availableRooms[$roomSelection->id] ?? null;
 
             if (null === $room) {
                 continue; // Skip if room not found