Add Tryton synchronization for CatalogSale

- Add external_id field to CatalogSale model for tracking synced sales
- Create migration 0047 for external_id field
- Add TrytonCatalogSale and TrytonCatalogSaleLine classes for Tryton RPC format
- Add send_catalog_sales_to_tryton() method to SaleTrytonService
- Create CatalogSalesToTrytonView API endpoint (POST)
- Register endpoint at /don_confiao/api/enviar_catalog_sales_a_tryton
- Add test for external_id field functionality
- Catalog sales sync to same Tryton model as Sale (model.sale.sale.create)
- Differentiated by reference 'don_confiao_catalog X' and description 'Venta de catálogo'
- Filters only catalog sales without external_id to avoid duplicates

tienda_ilusion/don_confiao/models/sales.py

@@ -20,9 +20,7 @@ class SaleLineAbstractModel(models.Model):
     product = models.ForeignKey(
         Product, null=False, blank=False, on_delete=models.CASCADE
     )
-    quantity = models.DecimalField(
-        max_digits=10, decimal_places=2, null=True
-    )
+    quantity = models.DecimalField(max_digits=10, decimal_places=2, null=True)
     unit_price = models.DecimalField(max_digits=9, decimal_places=2)
     description = models.CharField(max_length=255, null=True, blank=True)
 
@@ -55,9 +53,7 @@ class Sale(SaleAbstractModel):
 
     def clean(self):
         if self.payment_method not in PaymentMethods.values:
-            raise ValidationError(
-                {"payment_method": "Invalid payment method"}
-            )
+            raise ValidationError({"payment_method": "Invalid payment method"})
 
     @classmethod
     def sale_header_csv(cls):
@@ -67,7 +63,6 @@ class Sale(SaleAbstractModel):
 
 
 class SaleLine(SaleLineAbstractModel):
-
     sale = models.ForeignKey(Sale, on_delete=models.CASCADE)
 
     def __str__(self):
@@ -75,6 +70,7 @@ class SaleLine(SaleLineAbstractModel):
 
 
 class CatalogSale(SaleAbstractModel):
+    external_id = models.CharField(max_length=100, null=True, blank=True)
 
     def __str__(self):
         return f"{self.date} {self.customer}"