Improve the developer experience by providing structured setup scripts,
VS Code workspace configurations, and detailed documentation.
- Add VS Code workspace configuration and recommended settings
- Update README.md with system requirements and VS Code setup instructions
- Refactor `script/setup` to include Python 3.11+ validation and system dependency checks
- Add option to skip PulseAudio wait in `docker-entrypoint.sh` for local development
- Update `.gitignore` to ensure consistent version file handling
