#### Summary
This PR introduces key updates to the Arcade AI codebase, focusing on
improving the CLI tool, refining the Docker build process, and enhancing
documentation within the Gmail toolkit.
#### Key Changes:
1. **Docker Build**:
- Added the `--no-cache` option to the `docker-build` target in the
Makefile to ensure fresh builds, preventing issues related to cached
layers.
2. **CLI Tool**:
- Introduced a new optional `prompt` parameter in the `chat` command,
allowing users to customize the system role's prompt. A default prompt
is now provided if none is specified.
3. **Gmail Toolkit**:
- Updated the `write_draft` function with improved docstrings for
clearer guidance and maintainability.
#### Impact:
- **Developer Workflow**: Improved Docker reliability and enhanced CLI
flexibility.
- **User Experience**: More customizable interactions in the CLI and
better documentation in the Gmail toolkit.
Please review and provide feedback.
