Codeberg #14. Event-level multi-reminders already worked; this widens the
*defaults* layer from a single Int to a List<Int> so a calendar's default can
carry several lead times (e.g. a birthday calendar: one week before *and* on
the day).
- SettingsPrefs: global + per-calendar timed/all-day defaults become List<Int>;
CalendarReminderOverride.Minutes(List<Int>); resolveDefaultReminder returns a
list. Storage stays backward-compatible — a legacy single value ("30") parses
to [30], comma-joined for multiples, "none"/empty for no reminder.
- ReminderDefaultPicker is now multi-select: M3 Checkbox rows over the existing
grouped-tonal idiom, an exclusive "use default" group for per-calendar
overrides, and a Custom row that adds an arbitrary lead time to the set.
Optimistic local state so quick successive toggles don't race the settings
flow round-trip.
- New events seed their reminder list from the resolved default.
Tests cover none/single/multiple round-trips, legacy single-value parsing, and
per-calendar list overrides. lint + test + assembleDebug green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Jean-Luc Makiola
2ae4c818ba