- Add /api/admin/backup/list, /create, /download, /restore endpoints
- Add /api/version endpoint (git commit info)
- Add Settings page to sidebar nav + App.jsx routes
- Fix lateness stats: add total_late_count/total_late_minutes keys
- Fix leave aggregation: no more duplicate text in status
- Settings page now shows backup/restore UI + version info
- Fix leave upload: overwrite existing records on re-upload
IT Dog