feat: order creation on cart detail view

shop/migrations/0001_initial.py

@@ -1,4 +1,4 @@
-# Generated by Django 5.1.3 on 2025-01-02 13:36
+# Generated by Django 5.1.3 on 2025-01-03 11:17
 
 import django.db.models.deletion
 import django.utils.timezone
@@ -275,6 +275,7 @@ class Migration(migrations.Migration):
                         verbose_name="tipo de dirección",
                     ),
                 ),
+                ("email", models.EmailField(max_length=254, verbose_name="e-mail")),
                 (
                     "default",
                     models.BooleanField(default=True, verbose_name="por defecto"),
@@ -354,6 +355,12 @@ class Migration(migrations.Migration):
                         verbose_name="total",
                     ),
                 ),
+                (
+                    "email",
+                    models.EmailField(
+                        blank=True, max_length=254, verbose_name="e-mail"
+                    ),
+                ),
                 (
                     "billing_address",
                     models.CharField(
@@ -411,6 +418,8 @@ class Migration(migrations.Migration):
                 (
                     "user",
                     models.ForeignKey(
+                        blank=True,
+                        null=True,
                         on_delete=django.db.models.deletion.PROTECT,
                         to=settings.AUTH_USER_MODEL,
                         verbose_name="cliente",