Route inquiries by participant role

src/claim-request-management/dto/select-other-parts-v2.dto.ts

@@ -56,20 +56,21 @@ export class SelectOtherPartsV2Dto {
   @IsString()
   shebaNumber?: string;
 
-  @ApiProperty({
-    description: 'National code of insurer/owner - 10 digits',
+  @ApiPropertyOptional({
+    description:
+      'Legacy fallback for claims created before participant roles were stored. New claims derive the vehicle owner national code from the linked blame case.',
     example: '1234567890',
     pattern: '^[0-9]{10}$',
     minLength: 10,
     maxLength: 10,
   })
-  @IsNotEmpty({ message: 'nationalCodeOfInsurer is required' })
+  @IsOptional()
   @IsString({ message: 'National code must be a string' })
   @Length(10, 10, { message: 'National code must be exactly 10 digits' })
   @Matches(/^[0-9]{10}$/, {
     message: 'National code must contain exactly 10 digits',
   })
-  nationalCodeOfInsurer: string;
+  nationalCodeOfInsurer?: string;
 
   @ApiPropertyOptional({
     description: 'Legacy alias for backward compatibility',