Local notifications before timed agenda entries (scheduled, deadline, timestamp, range start; not done), 12 minutes before or APPT_WARNTIME, seven days ahead, capped at 64. ReminderScheduler reconciles pending requests at launch, on file changes, after edits and hourly; clicking a notification jumps to the entry; the agenda footer shows how far ahead reminders are set. Bundle-only (scripts/build-app.sh).
Plan: docs/plans/2026-10-05-notifications.md