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/modules/enums/enums.controller.ts

@@ -0,0 +1,12 @@
+import { Controller, Get } from '@nestjs/common'
+import { EnumsService } from './enums.service'
+
+@Controller('enums')
+export class EnumsController {
+  constructor(private readonly enumsService: EnumsService) {}
+
+  @Get('gold_karat')
+  async getGoldKarat() {
+    return this.enumsService.getEnumValues('GoldKarat')
+  }
+}

src/modules/enums/enums.module.ts

@@ -0,0 +1,10 @@
+import { Module } from '@nestjs/common'
+import { EnumsController } from './enums.controller'
+import { EnumsService } from './enums.service'
+
+@Module({
+  controllers: [EnumsController],
+  providers: [EnumsService],
+  exports: [EnumsService],
+})
+export class EnumsModule {}

src/modules/enums/enums.service.ts

@@ -0,0 +1,17 @@
+import { Injectable } from '@nestjs/common'
+import { GoldKarat } from '../../common/enums/enums'
+import { ResponseMapper } from '../../common/response/response-mapper'
+
+@Injectable()
+export class EnumsService {
+  getAllEnums() {
+    return {
+      GoldKarat: Object.values(GoldKarat).filter(value => typeof value === 'string'),
+    }
+  }
+
+  getEnumValues(enumName: string) {
+    const enums = this.getAllEnums()
+    return ResponseMapper.list(enums[enumName] || [])
+  }
+}