alpha.24: calendar overhaul, timer notifications, unattended screen-time capture

[codebooo]

Calendar

• Many calendars, with colour. 12 swatches or any hex, one marked default, each hideable from a colour key across the top. Events are drawn in their calendar's colour and choose their calendar when saved.
• Pinch-to-zoom works now. The old detectTransformGestures never fired: the vertical scroll and the day columns' tap/long-press handlers consumed the pointers first, and the closure captured the hour height from its first composition. The new gesture watches the initial pointer pass, only claims once a second finger is down, and reads the live height through a state holder.
• Animated period swipes in month, week, day and the new Agenda list. The loaded window is padded a whole period either side, so the page sliding in already has its events instead of flashing empty.
• Proton-style stacked alerts replace the single 30-minute toggle: at start, 5/10/15/30/60/120 min, 1/2 days, a week, or a typed value. Editing an event cancels its old alarms first (new CancelRemindersFor action, so the phone can't ring for a time that no longer exists).
• Location autocomplete via OpenStreetMap Nominatim, debounced, no key.
• Overlap-aware timeline: clashing events share the column width instead of hiding each other (greedy interval colouring per cluster). The timeline opens on the current hour, the title bar jumps to any date, and there is event search, duplicate and day-shift.
• Live subscriptions: any ICS or webcal link becomes a read-only coloured calendar, keyed by ICS UID so refreshes update rather than duplicate, wiped-and-rewritten each pull so upstream cancellations disappear, refreshed on open and every six hours by a worker. The ICS codec now reads and writes UID, all-day dates and VALARM offsets.
• Jarvis tools: event_full (calendar, alerts, location), calendar_new, calendar_subscribe, calendar_sync, plus a provider that reads out calendars, colours, defaults, subscription state and what is coming up.

Clock and Focus

• Clock's timer, Clock's stopwatch and the Focus timer each post an ongoing notification with Pause/Resume and Reset. The number is drawn by the system chronometer from an absolute instant, so it needs no per-second updates and stays correct while the app is away.
• Clock's timer and stopwatch moved into singletons, so leaving the tab no longer resets them.
• Fixed the "Show seconds" button overlapping the countdown — the fade container stacks its children, so each timer mode now owns its own column.

Screen time and backups

• A worker re-derives the last 45 days every four hours whether or not the module is opened; Android purges raw usage after about a month, so a rarely-opened app would silently lose the gap.
• A daily worker takes an encrypted database backup on its own, once a passphrase is set (never a silent plaintext dump without one).

Data

Schema 18 adds the calendars table plus calendarId, reminderMinutes and externalUid on events, with an auto-migration and exported schema.

Verification

• :app:assembleDebug and :app:assembleRelease (R8, minified) both green.
• gradle test green; 7 new unit tests cover reminder encoding, the palette and the ICS reader (UID, all-day dates, VALARM offsets).

🤖 Generated with Claude Code

https://claude.ai/code/session_011kSsXNrSk6NDjM2FjFZ7Y9

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Generated by Claude Code