add parent_role

apps/authorization/migrations/0020_role_parent_role.py

@@ -0,0 +1,19 @@
+# Generated by Django 5.0 on 2025-10-28 05:33
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('authorization', '0019_page_is_active_permissions_is_active'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='role',
+            name='parent_role',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='child', to='authorization.role'),
+        ),
+    ]