add order for category

src/modules/foods/dto/create-category.dto.ts

@@ -1,4 +1,4 @@
-import { IsString, IsOptional, IsBoolean } from 'class-validator';
+import { IsString, IsOptional, IsBoolean, IsInt, Min } from 'class-validator';
 import { ApiPropertyOptional } from '@nestjs/swagger';
 import { Type } from 'class-transformer';
 
@@ -17,4 +17,11 @@ export class CreateCategoryDto {
   @IsString()
   @ApiPropertyOptional({ example: 'https://cdn.example.com/avatar.png' })
   avatarUrl?: string;
+
+  @IsOptional()
+  @IsInt()
+  @Min(0)
+  @Type(() => Number)
+  @ApiPropertyOptional({ example: 1 })
+  order?: number;
 }