pub type ArtistImages = (HashMap<String, PathBuf>, HashMap<String, ArtistImageRef>);Expand description
Per-artist images, source-agnostic: (overrides, photos). overrides are
user-set custom photos (always a local path, highest priority); photos are
the synced photo per artist as a uniform reader::ArtistImageRef (a server
URL or a local path — server wins when both exist), resolved by the cover
seam so callers never branch on origin. Both keyed by normalized artist name.