Refactor project structure and update configurations for State Corp backend

- Updated project description in __init__.py
- Enhanced .gitignore to exclude additional data files
- Modified User model to remove first_name and last_name fields
- Improved instance save method in services.py to include updated_at field
- Added API tokens to .env.example for external services
- Cleaned up test files for better readability
- Updated Dockerfile and docker-compose.yml for improved setup
- Revised README.md to reflect project changes and added changelog

tests/apps/core/test_response.py

@@ -101,9 +101,7 @@ class APIPaginatedResponseTest(TestCase):
     def test_paginated_response(self):
         """Test paginated response with correct metadata"""
         data = [{"id": 1}, {"id": 2}]
-        response = api_paginated_response(
-            data, page=1, page_size=10, total_count=25
-        )
+        response = api_paginated_response(data, page=1, page_size=10, total_count=25)
 
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(response.data["data"], data)