Add CheckLibraryMBIDs call after artist data loads. Checks all
release group MBIDs from the discography against the local library.
Matching albums show a green 'In Library' badge in the album meta
section alongside the year.
Fires after Promise.allSettled completes (same timing as artist
image fetch). Non-blocking — badge appears on re-render when the
check completes.
yonlu
1797eef844