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

.gitignore

@@ -38,4 +38,6 @@ Thumbs.db
 
 # Backup files
 *.bak
-*.backup
+*.backupdata/
+data/
+.zed/