- player YB2: keepalive pagehide beacon (api.saveProgressBeacon) so the resume
position isn't lost on F5/close within 5s of the last checkpoint (mirrors Plex).
- player YB4: bound consecutive unplayable items in auto-advance so an
auto-advancing/loop=all queue can't spin over a run of dead videos.
- downloads B6 (client): localise structured quota/edit errors centrally in
api.req() via localizeDetail() + Intl.NumberFormat (fixes HU/DE + decimal sep);
+ 3-locale download error strings.
- channels FB1: focusChannelToken bump so re-clicking the same channel re-seeds
the search box; FB2: syncSubs invalidates feed/feed-count (set can change now).
- config CB2: reseed the ConfigPanel draft on a key-set dataVersion + explicit
post-save token, so a mid-edit refetch can't clobber an in-progress edit.
- config AB3 (UI): a blank allow_empty field stores "" instead of resetting.
- admin SB2/SC2: confirm + success toast on demo-whitelist remove and deny-invite
(+ trilingual strings); SC1: disable only the acted-on row (pendingId), not all;
SB3: pause the 1s scheduler countdown ticker while the tab is hidden.
- messages CT4: only invalidate conversations/unread when the incoming-message
count actually changed, not on every 20s poll; MB3 (client): react to the live
unread ping (onUnread → invalidate); MC3: extract e2ee installKey (setup/unlock);
CC2: hoist POLL_MS to messaging.ts; MB4: document the reload-scoped socket.