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/common/enums/enums.ts

@@ -10,3 +10,9 @@ export enum AccountType {
   PROVIDER,
   POS,
 }
+
+export enum GoldKarat {
+  KARAT_18 = 18,
+  KARAT_21 = 21,
+  KARAT_24 = 24,
+}