Add catalog sale purchase summary endpoint

- Add CatalogSaleSummarySerializer and CatalogSummarySaleLineSerializer
- Add CatalogSaleSummary API view for GET requests
- Register endpoint at /don_confiao/resumen_compra_catalogo_json/<id>
- Add comprehensive test for catalog sale summary
- Include nested customer and product details in response
- Endpoint returns id, date, customer, and lines with products

tienda_ilusion/don_confiao/api/__init__.py

@@ -4,6 +4,7 @@ from .sales import (
     SaleView,
     CatalogSaleView,
     SaleSummary,
+    CatalogSaleSummary,
     SalesForTrytonView,
     SalesToTrytonView,
 )
@@ -27,6 +28,7 @@ __all__ = [
     "SaleView",
     "CatalogSaleView",
     "SaleSummary",
+    "CatalogSaleSummary",
     "SalesForTrytonView",
     "SalesToTrytonView",
     # Payments

tienda_ilusion/don_confiao/api/sales.py

@@ -12,6 +12,7 @@ from ..serializers import (
     SaleSerializer,
     CatalogSaleSerializer,
     SaleSummarySerializer,
+    CatalogSaleSummarySerializer,
 )
 from ..permissions import IsAdministrator
 from ..services.tryton.sales import SaleTrytonService
@@ -66,6 +67,13 @@ class SaleSummary(APIView):
         return Response(serializer.data)
 
 
+class CatalogSaleSummary(APIView):
+    def get(self, request, id):
+        catalog_sale = CatalogSale.objects.get(pk=id)
+        serializer = CatalogSaleSummarySerializer(catalog_sale)
+        return Response(serializer.data)
+
+
 class SalesForTrytonView(APIView):
     permission_classes = [IsAuthenticated, IsAdministrator]