some error handler + error validation + realEstate bug fixed for hamta end moallem

src/main.ts

@@ -1,5 +1,5 @@
 import './telemetry';
-import { Logger, ValidationPipe } from '@nestjs/common';
+import { BadRequestException, Logger, ValidationPipe } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
 import { NestFactory } from '@nestjs/core';
 import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
@@ -7,6 +7,7 @@ import { NextFunction, Request, Response } from 'express';
 import { AppModule } from './app.module';
 import { API_KEY_HEADER } from './common/constants/app.constants';
 import { OpenTelemetryNestLogger } from './otel-nest-logger';
+import { buildValidationErrorResponse } from './common/helpers/validation-error.helper';
 import {
   recordHttpRequestEnd,
   recordHttpRequestStart,
@@ -46,6 +47,13 @@ async function bootstrap(): Promise<void> {
       forbidNonWhitelisted: true,
       transform: true,
       transformOptions: { enableImplicitConversion: true },
+      exceptionFactory: (errors) => {
+        const { normalizedError } = buildValidationErrorResponse(errors);
+        return new BadRequestException({
+          message: normalizedError.message,
+          error: normalizedError,
+        });
+      },
     }),
   );