Calendar app on Vareons: install, events, and bookings

The app installs from the /dashboard/apps marketplace with an Install button on the "Calendar" card described as managing appointments and events, after which an Open button leads to /dashboard/calendar. The card carries a Free badge.

The unified page has a localized title and description plus a Create Event button with a plus icon: on the left a calendar picker, search, and type filter (all, meeting, task, review, training, internal, or booking); on the right the selected day's list with its counter, each item showing title, type, status, start-to-end time, and participants with edit and delete.

Data loads through GET /api/calendar/data returning events, staff, recent orders, customers, and tasks, then filters locally by text, type, and day. Saving branches automatically: a booking moves through PATCH /api/dashboard/bookings/[id] with start and end times, while an internal event saves through POST or PUT /api/calendar/internal-events followed by a reload. Deleting cancels a booking through PATCH cancel or removes an internal event through DELETE internal-events/[id].

The enhanced version at /dashboard/calendar-enhanced is a demo with six tabs — calendar, search, drag-and-drop, staff view, colors, and settings — with booking cards showing customer, service, staff, time, status, color, payment, and rating, moving bookings through PATCH /api/bookings/{id}/move and deleting through DELETE.

Internal events are stored in the InternalEvent model with tenant, title, type, start, end, participants, description, status, priority, related link (order, customer, staff, or task), location, and reminders, while bookings live in UnifiedBooking alongside staff, time slots, and recurrence rules.