Saved-message cards showed the room and time but not the author, so in a busy
room you couldn't tell who said it without jumping. Now each card shows
"{sender} - {time ago}":
- Bookmark gains optional senderId/senderName (snapshotted at save time in
Message.tsx from the already-computed sender display name); optional so
existing stored bookmarks stay valid.
- The panel re-resolves the author's current display name live from the event
when the room is joined, falling back to the stored snapshot for left rooms.
- Search now also matches the author name.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
jaredandClaude Opus 4.8
e01b87b214