Copilot + CodeRabbit review findings:
- React.memo ChapterTicks and ChapterList (project guideline: hot-path
components must use React.memo to cut redraw work during control
updates).
- chapterNameAt now sorts the chapter array once instead of twice per
call. The previous version went through currentChapterIndex
(chapterStartsMs + sort) then sortedChapters (sort again). Runs on
every playback tick, so the duplicate work added up.
- Import getUserLibraryApi from the public barrel
(@jellyfin/sdk/lib/utils/api) instead of the deep internal path
(@jellyfin/sdk/lib/utils/api/user-library-api) to match the rest of
the codebase and avoid coupling to SDK file layout.
TrickplayBubble polish:
- Sit just above the slider (bottom: 0) so the bubble no longer overlaps
the progress bar.
- Move the chapter-name + timestamp overlay to the bottom-left of the
preview frame, smaller font, in front of the surrounding overlays
(zIndex + elevation).
BottomControls cleanup:
- Drop dev-only "pick one to test" comment in favour of a one-line note
on TICK_HEIGHT.
- Inline scrubMs into its useMemo callback so the scrub-chapter-name
lookup only recomputes while a slide is active.
e3f4eea132