B6 scroll-to-latest: ScrollController on the timeline; a small
arrow-down FAB fades in once scrolled >400px up and animates back
to the newest message on tap (overlaid on the list, not the FAB slot)
B5 panic hold-ring: 700ms AnimationController drives a red progress
ring around the panic icon; haptic + fire on completion, silent
reset on early release; tap-hint and configured guard preserved
Panic ring verified in-browser (ring fills, alert fires to the room).
Scroll-to-latest verified with a deterministic widget test because the
CanvasKit surface rejects synthetic scroll input in headless Chromium.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
P1 key_restore_prompt: offer recovery-key restore right after login
P2 incoming calls: mount overlay in app.dart + detect MSC3401 call.member
(Element X signalling) — calls were previously invisible
P3 message edit: editMessage/EditMessage + Edit dialog (reactions/delete
were already wired)
P5 panic button: new feature/panic module — hold-to-send alert text +
m.location to a configured room; alert sent before geolocation so a
denied permission never blocks it
All verified end-to-end in headless Chromium against production build.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
