M23: replaceMediaItems wrote [...newItems, ...others] and the JSON store sliced
the combined list to MAX_ITEMS, so re-indexing one large source could
silently evict ANOTHER source's tail. Now other sources are always kept in
full and only the source being (re)indexed is capped to the remaining
budget (MAX_ITEMS - others.length).
M27: enqueueItems forced settings.defaultKind for every item, so a channel
couldn't be queued as audio without flipping the global default. Added an
optional `kind` override (falls back to the default) and a video/audio
SegmentedControl in the Library action row, seeded from defaultKind so
existing behavior is unchanged until toggled.
typecheck + 242 tests + eslint green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
debont80
6ee4dbe78e