- Added group duty pin functionality with configurable notification settings.
- Introduced `/refresh_pin` command for immediate duty message updates in groups.
- Implemented role-based access management with `/set_role` command for user and admin roles.
- Added `/calendar_link` command to provide users with personal ICS subscription URLs.
- Configured `MINI_APP_SHORT_NAME` for direct Mini App links in pinned messages.
- Introduced `LOG_LEVEL` configuration for backend logging control.
- Migrated Mini App to Next.js with enhanced loading states and styling improvements.
- Added *.egg-info/ to .gitignore to prevent egg metadata from being tracked.
- Updated virtual environment instructions in CONTRIBUTING.md and README.md to use .venv for consistency.
- Revised mkdocs.yml to include a placeholder for the repository URL when publishing.
- Cleaned up pyproject.toml by removing unnecessary pylint configuration.
- Enhanced import-format.md and runbook.md documentation for clarity on user roles and health check endpoints.
- Changed the behavior of the group duty pin feature to send a new message, unpin the old one, and pin the new one instead of editing the existing message. This ensures the pinned message is always fresh.
- Updated the `DUTY_PIN_NOTIFY` configuration description in the documentation to reflect the new message handling approach.
- Revised the architecture documentation to clarify the updated group duty pin process.
- Enhanced tests to verify the new behavior of the group duty pin functionality, ensuring proper message handling and scheduling.
- Introduced a new configuration option `DUTY_PIN_NOTIFY` to control whether the bot re-pins the duty message when updated, providing notifications to group members.
- Updated the architecture documentation to reflect the new functionality of re-pinning duty messages.
- Enhanced the `.env.example` file to include the new configuration option with a description.
- Added tests to verify the behavior of the new refresh pin command and its integration with the existing group duty pin functionality.
- Updated internationalization messages to include help text for the new `/refresh_pin` command.
- 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.
