- Created a new `CHANGELOG.md` file to document all notable changes to the project, adhering to the Keep a Changelog format.
- Updated `CONTRIBUTING.md` to include instructions for building and previewing documentation using MkDocs.
- Added `mkdocs.yml` configuration for documentation generation, including navigation structure and theme settings.
- Enhanced various documentation files, including API reference, architecture overview, configuration reference, and runbook, to provide comprehensive guidance for users and developers.
- Included new sections in the README for changelog and documentation links, improving accessibility to project information.
- Created a new `CONTRIBUTING.md` file outlining development setup, testing, and commit message conventions.
- Updated `README.md` to clarify environment variable usage, including new variables for HTTP port, CORS origins, and duty display timezone.
- Enhanced documentation for bot commands and API endpoints to improve user understanding and onboarding.
- Added example configurations in `.env.example` for better clarity on optional settings.
