Module
Calendar
Events, recurrence, layers — every dated thing in one grid.
What it does · tap to open
Five views
Month (expandable week rows + agenda card), Week and Day (hour grids with duration blocks and a now-line), Year (cluster heat), Timeline.
Recurring events
Standard and custom rules, skip-a-date exceptions, series editing.
All-day vs timed events
Multi-hour blocks sized by duration.
Lead-time reminders per event
("remind 30 min before") through the push engine.
LAYERS
Per-person shift dots (from Work Schedule), leave spans, habit check-in dots, timed tasks — each toggleable, choices persist per device.
Header quick-adds
Event, shift exception, and leave without leaving the page.
ICS subscriptions
Follow external calendars read-only (school, sports team).
People on events (who's going) with avatar chips
Events appear on their profiles.
Shared filter panel (same grammar as Search)
Types, people, spaces.
Coverage gaps and expiries surface
As calendar entries where relevant.