feat: Implement Dockerized multi-tenant Django application with initial setup for database, migrations, and superuser creation.

docker/create_public_tenant.py

@@ -0,0 +1,45 @@
+import os
+import django
+from django.conf import settings
+
+import sys
+
+# Add /app to sys.path so we can import myproject
+sys.path.append('/app')
+
+# Setup Django environment
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'myproject.settings')
+django.setup()
+
+from tenants.models import Client, Domain
+
+def ensure_public_tenant():
+    domain_name = os.environ.get('DOMAIN_NAME', 'localhost')
+    print(f"Checking public tenant for domain: {domain_name}")
+    
+    # 1. Ensure Client exists
+    client, created = Client.objects.get_or_create(
+        schema_name='public',
+        defaults={'name': 'Main Tenant'}
+    )
+    if created:
+        print("Created public tenant client.")
+    else:
+        print("Public tenant client already exists.")
+
+    # 2. Ensure Domain exists
+    # Check if this specific domain exists
+    domain, created = Domain.objects.get_or_create(
+        domain=domain_name,
+        defaults={'tenant': client, 'is_primary': True}
+    )
+    
+    if created:
+        print(f"Created domain {domain_name} for public tenant.")
+    else:
+        print(f"Domain {domain_name} already exists.")
+        if domain.tenant != client:
+            print(f"WARNING: Domain {domain_name} is assigned to another tenant!")
+
+if __name__ == '__main__':
+    ensure_public_tenant()