feat: update validation and exception handling, refactor controller routes, and enhance sales invoice item DTO

- Removed global validation pipe and added a new ValidationExceptionFilter for better error handling.
- Refactored controller routes to use underscores instead of hyphens for consistency.
- Updated CreateSalesInvoiceItemDto to include new fields: quantity, unit_type, and payload.
- Modified CreateSalesInvoiceDto to enforce items as an array with a minimum size.
- Added Enums module to provide gold karat values through a dedicated endpoint.
- Introduced new columns in the database schema for sales invoice items and goods.

src/main.ts

@@ -1,9 +1,10 @@
-import { ValidationPipe, VersioningType } from '@nestjs/common'
+import { VersioningType } from '@nestjs/common'
 import { NestFactory, Reflector } from '@nestjs/core'
 import { JwtService } from '@nestjs/jwt'
 import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger'
 import { AppModule } from './app.module'
 import { PrismaExceptionFilter } from './common/filters/prisma-exception.filter'
+import { ValidationExceptionFilter } from './common/filters/validation-exception.filter'
 import { LoggingInterceptor } from './common/interceptors/logging.interceptor'
 import { ResponseMappingInterceptor } from './common/interceptors/response-mapping.interceptor'
 import { JwtAuthGuard } from './modules/auth/jwt-auth.guard'
@@ -58,10 +59,10 @@ async function bootstrap() {
   app.useGlobalInterceptors(new LoggingInterceptor(), new ResponseMappingInterceptor())
 
   // Enable request validation and transformation globally
-  app.useGlobalPipes(new ValidationPipe({ whitelist: true, transform: true }))
+  // app.useGlobalPipes(new ValidationPipe({ whitelist: true, transform: true }))
 
-  // Register global exception filter to map Prisma and validation errors to proper HTTP codes
-  app.useGlobalFilters(new PrismaExceptionFilter())
+  // Register global exception filters: validation errors and Prisma errors
+  app.useGlobalFilters(new ValidationExceptionFilter(), new PrismaExceptionFilter())
 
   app.useGlobalGuards(new JwtAuthGuard(app.get(JwtService), app.get(Reflector)))