feat: add settlement_type to SalesInvoice model and related DTOs

- Added settlement_type field to SalesInvoice model with ENUM values (CASH, CREDIT, MIXED).
- Updated SalesInvoice aggregate types, input types, and where filters to include settlement_type.
- Modified StatisticsService to calculate credit amounts based on settlement_type.
- Enhanced TspProviderOriginalSendPayloadDto to include settlement_type.
- Updated NamaProvider DTOs and utility functions to handle new settlement_type logic.
- Created migration to add settlement_type column to sales_invoices table and backfill existing records.

src/common/services/saleInvoices/sale-invoice-create.service.ts

@@ -382,7 +382,14 @@ export class SharedSaleInvoiceCreateService {
       main_invoice_id,
       ref_invoice_id,
     } = params
-    const { customer_id, customer_type, customer, payments, ...invoiceData } = data
+    const {
+      customer_id,
+      customer_type,
+      customer,
+      payments,
+      settlement_type,
+      ...invoiceData
+    } = data
 
     if (
       type !== TspProviderRequestType.ORIGINAL &&
@@ -398,6 +405,7 @@ export class SharedSaleInvoiceCreateService {
       total_amount: data.total_amount,
       code: this.generateInvoiceCode(businessId, complexId, posId, invoiceNumber),
       type,
+      settlement_type,
       items: {
         createMany: {
           data: data.items.map(item => ({