feat(website_sale_aplicoop): ordenar productos por website_sequence y nombre

- Ordena productos primero por website_sequence y luego alfabéticamente por nombre (case-insensitive)
- Fix test: cambiar tipo de producto de 'product' a 'consu' (Odoo 18 compatibility)

website_sale_aplicoop/models/group_order.py

@@ -477,7 +477,10 @@ class GroupOrder(models.Model):
                     len(products),
                 )
 
-        return products
+        # Sort products by website_sequence (primary) and name (secondary, case-insensitive)
+        return products.sorted(
+            lambda p: (p.product_tmpl_id.website_sequence, (p.name or "").lower())
+        )
 
     def _get_products_paginated(self, order_id, page=1, per_page=20):
         """Get paginated products for a group order.

website_sale_aplicoop/tests/test_portal_sale_order_creation.py

@@ -62,7 +62,7 @@ class TestPortalSaleOrderCreation(TransactionCase):
             {
                 "name": "Test Product",
                 "list_price": 100.0,
-                "type": "product",
+                "type": "consu",
             }
         )
 
@@ -117,9 +117,7 @@ class TestPortalSaleOrderCreation(TransactionCase):
         )
 
         # Child should fallback to commercial partner's salesperson
-        self.assertEqual(
-            child_partner.commercial_partner_id.user_id, self.salesperson
-        )
+        self.assertEqual(child_partner.commercial_partner_id.user_id, self.salesperson)
 
     def test_portal_user_can_update_order_lines(self):
         """Test that portal users can update existing order lines with sudo()."""