Replace requirements.txt with modern pyproject.toml configuration to align with Python packaging best practices. All dependencies are now declared in [project] section, with optional dev dependencies (ruff, mypy) in [project.optional-dependencies].
Updated all references:
- Dockerfile: Install with `pip install .` instead of `-r requirements.txt`
- setup_env.sh: Install with `pip install -e .` for editable development mode
- README.md: Updated installation instructions in both quick start and development sections
- CLAUDE.md: Updated documentation references
- .gitignore: Added common IDE and tool directories
Installation is now: `pip install -e .` for development or `pip install .` for production.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
