✨(domains) add action required status on MailDomain

Create a new domain status to handle cases where
action is required from an external domain owner
for a domain to be fully functional.

src/backend/mailbox_manager/enums.py

@@ -22,6 +22,7 @@ class MailDomainStatusChoices(models.TextChoices):
     ENABLED = "enabled", _("Enabled")
     FAILED = "failed", _("Failed")
     DISABLED = "disabled", _("Disabled")
+    ACTION_REQUIRED = "action_required", _("Action required")
 
 
 class MailboxStatusChoices(models.TextChoices):

src/backend/mailbox_manager/migrations/0017_alter_maildomain_status.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.1.5 on 2025-02-03 12:59
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mailbox_manager', '0016_alter_mailbox_domain'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='maildomain',
+            name='status',
+            field=models.CharField(choices=[('pending', 'Pending'), ('enabled', 'Enabled'), ('failed', 'Failed'), ('disabled', 'Disabled'), ('action_required', 'Action required')], default='pending', max_length=20),
+        ),
+    ]

src/backend/mailbox_manager/models.py

@@ -25,7 +25,7 @@ class MailDomain(BaseModel):
     )
     slug = models.SlugField(null=False, blank=False, unique=True, max_length=80)
     status = models.CharField(
-        max_length=10,
+        max_length=20,
         default=MailDomainStatusChoices.PENDING,
         choices=MailDomainStatusChoices.choices,
     )