feat: API endpoint to load travel data by code

src/BusProNet/Model/Room.php

@@ -49,7 +49,7 @@ class Room
     #[Groups(['api:list', 'api:single'])]
     public ?int $available = null;
 
-    #[Groups(['api:list', 'api:single'])]
+    #[Groups(['booking'])]
     public ?string $board = null;
 
     #[Groups(['booking'])]