feat: implement POS order management system

- Added CreateOrderDto and CreateOrderItemDto for order creation.
- Developed PosOrdersController to handle order-related endpoints.
- Created PosOrdersService for business logic related to orders.
- Implemented PosOrdersWorkflow for order processing workflows.
- Established Prisma integration for database operations in orders.
- Introduced SalesInvoicesModule and related DTOs for sales invoice management.
- Enhanced SalesInvoicesService and SalesInvoicesWorkflow for invoice processing.

src/generated/prisma/browser.ts

@@ -182,3 +182,8 @@ export type Supplier = Prisma.SupplierModel
  * 
  */
 export type SupplierLedger = Prisma.SupplierLedgerModel
+/**
+ * Model StockAvailableView
+ * 
+ */
+export type StockAvailableView = Prisma.StockAvailableViewModel