- Focus returns to the trigger when closing 4 genuine dialogs (room-topic
viewer, reaction viewer, header topic, Search) — 20 inline popouts/menus
correctly left as-is (returning focus to a hover target would be wrong).
- Typing indicator announced via a visually-hidden role="status" region;
the visual text is aria-hidden to avoid double announcement.
- New keyboard-shortcuts help dialog (press ?, ignored while typing),
mounted in ClientNonUIFeatures.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
