* feat(artist): year sort for albums section on artist detail
Add a sort dropdown next to "Albums by …" with release-type grouping (default),
newest-first, and oldest-first by album year.
* chore: note PR #877 in CHANGELOG and settings credits
* fix(artist): toggle year sort inside release groups, session per server
Replace dropdown with a click-to-toggle newest/oldest button. Keep release-type
blocks; sort albums by year within each group. Persist order in session store.
cucadmuh