SongBundleIdentityOutcome

type SongBundleIdentityOutcome = 
  | {
  canonical20260801: {
     duration: CanonicalParsedChart["duration"];
     notices: readonly CanonicalSourceNotice[];
     song: CanonicalSongIdentity;
     tracks: readonly CanonicalBundleTrackIdentity[];
  };
  frozenLegacy6142: {
     song: FrozenLegacySongBundleIdentity;
     tracks: readonly LegacyBundleTrackIdentity[];
  };
  kind: "accepted";
}
  | {
  errors: readonly [SourceParseError, ...SourceParseError[]];
  kind: "rejected";
};