- spotify.js: stop overwriting trackName with iTunes English title —
yt-dlp must search with original Japanese title to find the right song
(was downloading English covers e.g. Ghost In A Flower instead of 幽霊花)
- metadata.js: add title-only fallback in lookupItunesTrackMeta so tracks
are found even when kuromoji gives wrong artist romanization (e.g.
Terui Jun Sei vs iTunes Yoshimasa Terui); also return itunesArtistName
- novasonic-server.js: use itunesArtistName from iTunes lookup as the
stored artist when available (single-track and playlist download paths)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>