feat: add stock keeping unit management with create, update, and retrieval functionalities

- Implemented CreateStockKeepingUnitDto for creating stock keeping units.
- Added StockKeepingUnitsService for handling business logic related to stock keeping units.
- Created StockKeepingUnitsController to manage HTTP requests for stock keeping units.
- Developed UpdateStockKeepingUnitDto for updating existing stock keeping units.
- Introduced StockKeepingUnitsServiceFindAllResponseDto for response structure.
- Established stock keeping units module for encapsulation of related components.

feat: enhance sales invoice fiscal management with new endpoints

- Created SalesInvoicesFilterDto for filtering sales invoices.
- Implemented PosSalesInvoiceFiscalController for managing fiscal operations on sales invoices.
- Developed PosSalesInvoiceFiscalService to handle fiscal logic and interactions.
- Added methods for sending, retrying, and checking the status of fiscal invoices.
- Integrated error handling and response mapping for fiscal operations.

src/modules/partners/consumers/business-activities/business-activities.service.ts

@@ -114,6 +114,7 @@ export class BusinessActivitiesService {
       const createdBusinessActivity = await tx.businessActivity.create({
         data: {
           ...rest,
+          economic_code: String(data.economic_code),
           guild: {
             connect: {
               id: guild_id,