Deep-review round 2 on the round-1 fixes (all low):
- part_key churn (state): round 1's part-key reset re-probed EVERY sync for a
multi-version item (an original + a Plex 'Optimized' copy), because
_media_facts reads media[0]/part[0] whose order Plex doesn't guarantee stable,
oscillating transcode_hw between the two versions. Gate the part-key signal on
a single-version item (len(Media)<=1); codec-change reset still applies to all.
A multi-version same-codec re-encode not self-healing is an acceptable rare
edge; a per-sync re-probe loop is not.
- dead i18n key: this diff's playableClass() collapses to transcode_hw/sw, so the
bare plex.playable.transcode key it orphaned is now unused (knip can't see
dynamic keys). Dropped from both locales, parity kept.
- test: cross-facet narrowing by an active playable class (a co-facet's year
range collapses to the selected subset) — the flip side of self-exclusion,
previously unpinned.
The aria-label+title double-announcement on the card dot is a deliberate accepted
trade-off (reliable SR name + mouse tooltip). Backend + FE gates green.
peter
c1a3b7b935