- PlaylistEffects.updateFavorites$ applies the toggled channel through
transformPlaylistFavorites, on the favorites read at write time, instead
of writing the reducer's whole array: a conflict retry keeps another
device's favorites (#1919).
- Edits made before the first read on top of this tab's recovered unsent
write are appended to it as their own steps, so a removal of an item the
recovered write adds survives a conflict replay.
- Journal copies of earlier page loads kept because this page could not
save its own are removed once it can.
- adopt/extend move into server-user-data-adopt.ts over a small queue API
(unsent, isQueued, put); the queue exposes its tag map.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>