austinried d5a9a11cef add a separate, editable up-next queue (#61) ...

Split playback into a shuffled context and a manual up-next list.
`up_next_entries` holds the same reference-plus-range rows as the
context but is never shuffled; `playback_cursor.upNextAnchor` pins the
block between a context track and its successor. `QueueRepository`
resolves a combined position by mapping through the context order and
splicing the block after the anchor, so the controller's window and
next/previous keep working.

PlaybackController gains addToQueue/playNext, consumes a queued track
when playback advances out of it, resumes the context when the block
empties, and clears the block on a new context. The queue view gets an
editable "Up next" section and a read-only context section, and the
context menu gains Play next / Add to queue for songs, albums and
playlists.

2026-10-04 00:30:00 +00:00

..

com.subtracks.data.db.SubtracksDatabase

add a separate, editable up-next queue (#61)

2026-10-04 00:30:00 +00:00