Chapter lists highlighted the active row by reading currentTime in the
view body, re-rendering every row many times per second during
playback. PlayerState now stores a change-guarded activeChapterID
updated when time or chapters change, so views observe only chapter
transitions.
TVDetailsPanel now renders the active tvOS preset's panel pages (info,
comments, related, chapters, queue; tracks stays with the quality panel)
with runtime hiding of empty pages, a segmented picker for up to four
pages and a focusable capsule row above that, and Info element toggles
honored. Comments unify on the PlayerState loader; the tvOS queue list
is extracted from QueueManagementSheet into TVQueueListView and reused
as the queue page. New related/chapters focus-based pages: selecting a
related video plays it and dismisses the panel, chapters seek and keep
the panel open.
New minimal Settings > Player Panels screen edits the active tvOS
preset via the existing service: duplicate-to-edit, page toggles with
last-page guard, Move Up/Down reordering, and Info element toggles.
