- Introduced support for updating the agent language in the configuration, including a new callback in `initializeConfigHandlers`.
- Enhanced `handleUpdateConfig` to trigger the new language update callback when the agent language changes.
- Updated validation logic to ensure the agent language is a non-empty string.
- Modified the `TeamConfigReader` and `TeamProvisioningService` to handle the new language setting, ensuring teams are notified of language changes.
- Adjusted various components to accommodate the new task start and cancellation features, improving task management in the Kanban board.