refactor: remove SalesInvoiceItemsService and update sales invoice handling

- Deleted SalesInvoiceItemsService as it was not implemented.
- Changed variable declaration from `const` to `let` in SalesInvoicesService for sales invoice creation.
- Updated response handling after sending to TSP provider in SalesInvoicesService.
- Renamed payload properties in TspProvider DTOs for clarity.
- Enhanced error handling in SalesInvoiceTspSwitchService for unsupported providers.
- Refactored SalesInvoiceTspService to utilize utility functions for payload building and sending.
- Updated PrismaService to increase connection limit and utilize dynamic options.
- Added new migration scripts to update database schema for sale_invoice_tsp_attempts.
- Introduced utility functions for building payloads and handling responses in sales invoice processing.

src/app.module.ts

@@ -9,7 +9,6 @@ import { ConsumerModule } from './modules/consumer/consumer.module'
 import { EnumsModule } from './modules/enums/enums.module'
 import { PartnerModule } from './modules/partners/partners.module'
 import { PosModule } from './modules/pos/pos.module'
-import { SalesInvoiceItemsModule } from './modules/pos/sales-invoices/sales-invoice-items/sales-invoice-items.module'
 import { SalesInvoicePaymentsModule } from './modules/pos/sales-invoices/sales-invoice-payments/sales-invoice-payments.module'
 import { TriggerLogsModule } from './modules/trigger-logs/trigger-logs.module'
 import { UploaderModule } from './modules/uploader/uploader.module'
@@ -20,12 +19,11 @@ import { PrismaModule } from './prisma/prisma.module'
     PrismaModule,
     EnumsModule,
     AdminModule,
+    AuthModule,
     CatalogModule,
     ConsumerModule,
     PosModule,
     PartnerModule,
-    AuthModule,
-    SalesInvoiceItemsModule,
     SalesInvoicePaymentsModule,
     TriggerLogsModule,
     UploaderModule,