agent and category Dto creation

src/categories/dto/create-specialization.dto.ts

@@ -0,0 +1,38 @@
+import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
+import {
+  IsString,
+  IsOptional,
+  IsBoolean,
+  IsInt,
+  IsUUID,
+  MinLength,
+  MaxLength,
+} from 'class-validator';
+
+export class CreateSpecializationDto {
+  @ApiProperty({ example: 'uuid-of-category' })
+  @IsUUID()
+  categoryId: string;
+
+  @ApiProperty({ example: 'Residential Sales' })
+  @IsString()
+  @MinLength(2)
+  @MaxLength(100)
+  name: string;
+
+  @ApiPropertyOptional({ example: 'Specializing in residential property sales' })
+  @IsOptional()
+  @IsString()
+  @MaxLength(500)
+  description?: string;
+
+  @ApiPropertyOptional({ example: true, default: true })
+  @IsOptional()
+  @IsBoolean()
+  isActive?: boolean;
+
+  @ApiPropertyOptional({ example: 0 })
+  @IsOptional()
+  @IsInt()
+  sortOrder?: number;
+}