feat: MBTarget exposes rgMbid + artistMbid from the resolver

worker/lyra_worker/_musicbrainz.py

@@ -36,9 +36,12 @@ class MusicBrainzResolver:
 
         canonical_album = rg.get("title", album)
         canonical_artist = artist
+        artist_mbid = ""
         credit = rg.get("artist-credit")
         if isinstance(credit, list) and credit and isinstance(credit[0], dict):
-            canonical_artist = (credit[0].get("artist") or {}).get("name", artist)
+            _artist = credit[0].get("artist") or {}
+            canonical_artist = _artist.get("name", artist)
+            artist_mbid = _artist.get("id", "") or ""
 
         year = None
         frd = rg.get("first-release-date", "") or ""
@@ -72,4 +75,6 @@ class MusicBrainzResolver:
             total_duration_s=total_duration_s,
             year=year,
             tracklist=titles,
+            rg_mbid=rg.get("id", "") or "",
+            artist_mbid=artist_mbid,
         )