- Added a new scheduler module using APScheduler to manage scheduled sync jobs.
- Introduced cron expression validation and job scheduling based on user-defined settings.
- Enhanced frontend to support schedule settings, including cron, daily, and weekly modes.
- Updated API service to handle fetching and saving schedule settings.
- Modified StrategySelector component to include schedule management UI.
- Added new types for schedule settings and modes in the frontend.
- Updated requirements to include APScheduler for scheduling capabilities.