fix - replace BaseModel -> AbstrasctUser (MRO)

apps/authentication/migrations/0044_remove_username_unique.py

@@ -0,0 +1,17 @@
+# Generated by Django 5.0 on 2025-10-29 13:55
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('authentication', '0043_alter_user_options_alter_user_managers'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='user',
+            name='username',
+            field=models.CharField(max_length=150, unique=False),
+        ),
+    ]