Give equal-weight actions equal-weight feedback (R11).
S1 Plex error toasts: the watched-toggles (card / season mark-all / episode /
info-panel / show mark-all) used to fail silently on 403/404/429; each now surfaces
the server reason via a shared notifyActionError() + resyncs the optimistic flip.
The playback auto-mark-watched stays intentionally silent (a mid-play toast is
noise; the next sync corrects it). New generic lib/actionErrors.ts (Plex + saved
views reuse it; notifyYouTubeActionError delegates its non-403 case to it).
S2 download-done inbox notification: worker.py emits a best-effort type=download_done
notice to the job owner on real completion (regular + edit jobs, not instant
cache-hits), rendered/localized in the inbox with an Open-Downloads link.
S3 optimistic rollbacks: SavedViewsWidget create/rename/toggle-default/remove/reorder
and the inbox revert-state no longer swallow failures — they toast + refetch to
resync (the reorder's optimistic order reverts to server truth).
S4 access-request deny: deny_invite now emails the requester (send_access_denied),
mirroring approve — no more silent limbo.
- notifyYouTubeActionError: on any non-403 error, show the server's own reason (err.detail, e.g.
"Not enough quota left today") instead of the caller's generic fallback, which was discarded
(U-3.2.8). 403 still offers the Connect affordance.
- App boot error now offers a Retry (StateMessage) instead of a dead "Something went wrong" (U-4.2).
- deletePlaylist prefers the server's reason over a blanket "couldn't delete on YouTube" that
misleads when the failure wasn't the YouTube side.
- Already covered in earlier sprints (verified): the live-search "Load more" already surfaces the
quota error inline via err.detail, and ChannelPage subscribe/unsubscribe already route through
notifyYouTubeActionError.
- Extract notifyYouTubeActionError (new lib/youtubeErrors.ts): the "403 → Connect
your YouTube account, else fallback toast" logic was duplicated in Channels.tsx
and ChannelDiscovery.tsx. (Separate file, not lib/notifications, to avoid the
api ↔ notifications import cycle.)
- Extract format.formatCountOrDash(): the `n != null ? formatViews(n) : "—"` count
cell was repeated across the subs/videos columns in Channels + ChannelDiscovery.
- Register channelsTable / channelDiscoveryTable in storage.ts LS instead of bare
"siftlode.*" string literals.
- Delete 7 dead channels.json keys (filterPlaceholder, tags.newTag/createTag,
row.stored/subs/getFullHistory/getFullHistoryHint) from en/hu/de — verified 0
refs (createTag matches were the unrelated api.createTag method, not the key).
Behavior-neutral. tsc green, knip no new unused, localdev boots.
peter