Implement client-side validation for container and bul

apps/edr-freight-api/src/modules/train-scheduling/booking-batch.service.ts

@@ -635,7 +635,8 @@ export class BookingBatchService implements OnModuleInit {
         trainSet: { locomotive: true },
         originStation: true,
         destinationStation: true,
-        route: true,
+        // Yards supply the route's display name for `routeName` below.
+        route: { originYard: true, destinationYard: true },
       },
       order: { scheduledDepartureDate: "ASC" },
     });