- Replaced direct imports from 'antd' with centralized imports from '@/shared/antd-imports' to align with new import rules and improve maintainability.
- Introduced a new `TimerButton` component to display and manage running timers.
- Implemented API service method `getRunningTimers` to fetch active timers.
- Updated the navbar to replace the HelpButton with the TimerButton for better functionality.
- Enhanced timer display with real-time updates and socket event handling for timer start/stop actions.
