fix: types isses

apps/edr-freight-api/src/modules/contracts/dto/create-booking-under-contract.dto.ts

@@ -101,6 +101,13 @@ export class CreateBulkLineDto {
   @Min(0)
   @Transform(({ value }) => Number(value))
   hazardousQuantity?: number;
+
+  @ApiPropertyOptional({ minimum: 0 })
+  @IsOptional()
+  @IsInt()
+  @Min(0)
+  @Transform(({ value }) => Number(value))
+  reeferQuantity?: number;
 }
 
 /** Shipment booking created under a contract (Path A customer, Path B GL ET). */