parsian inquiries implemented

src/inquiry/dto/policy-by-national-code-request.dto.ts

@@ -0,0 +1,11 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { IsNotEmpty, IsString, Length, Matches } from 'class-validator';
+
+export class PolicyByNationalCodeRequestDto {
+  @ApiProperty({ example: '4311402422', description: 'Iranian national code (10 digits)' })
+  @IsString()
+  @IsNotEmpty()
+  @Length(10, 10)
+  @Matches(/^\d{10}$/, { message: 'nationalCode must be exactly 10 digits' })
+  nationalCode!: string;
+}