- Created calendarWidget.js (1002 lines) - Reduced rightbar_calendar.html from 996 to 237 lines (76% reduction) - Supports: FullCalendar integration, company/department calendars, recurring events - Features: week list view, event CRUD, color picker, responsive design - Export initCalendarWidget() function for reusability - Updated components/index.js to export calendar widget (v1.1.0)