BE: Add migration to create anonymous user

Author: letam

server/apps/users/migrations/0003_create_anonymous_user.py

@@ -0,0 +1,22 @@
+# Generated by Django 5.1.5 on 2025-02-26 00:27
+
+from django.db import migrations
+from django.contrib.auth import get_user_model
+
+def create_anonymous_user(apps, schema_editor):
+    User = get_user_model()
+    if not User.objects.filter(username="anonymous").exists():
+        User.objects.create(
+            username="anonymous",
+        )
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('users', '0002_create_superuser'),
+    ]
+
+    operations = [
+        migrations.RunPython(create_anonymous_user),
+    ]