Restored all configuration and documentation files that were missing:
- devenv.nix and devenv.lock for development environment
- README.md, CLAUDE.md, DOCKER.md, WARP.md for documentation
- alembic.ini for database migrations
- requirements.txt for Python dependencies
- Dockerfile, docker-compose.yml, entrypoint.sh for containerization
- build.sh for build automation
- pytest.ini for test configuration
All database concurrency improvements and logging fixes remain intact.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
