Add remaining model types and client methods

Models added:
- Disclaimer, ForeignAgent (credits.go)
- ArtistConcerts (concert.go)
- Dashboard, StationResult, Station, AdParams, GenerativeStream,
  GenerativeStreamData, GenerativeStreamInfo (radio.go)
- FileInfo, FileDownloadInfo, TrackFullInfo, SimilarTracks, TrackTrailer (track.go)
- Removed duplicate AdParams from feed.go

Client methods added:
- artists.go: GetArtistBriefInfo, GetArtistSimilar, GetArtistLinks,
  GetArtistAlsoAlbums, GetArtistDiscographyAlbums, GetArtistSafeDirectAlbums,
  GetArtistTrackIds, GetArtistAbout, GetArtistDonation, GetArtistInfo,
  GetArtistSkeleton, GetArtistTrailer
- albums.go: GetAlbumSimilarEntities, GetAlbumTrailer
- clips.go: GetClipsDisclaimer
- concerts.go: GetArtistConcerts, GetConcertSkeleton
- radio.go: GetRotorStationsDashboard, GetRotorStationsList,
  GetRotorStationInfo, GetRotorStationStream, GetRotorStationSettings
- supplements.go: GetTracksCredits, GetClipsCredits
- queue.go: GetQueuesList
- tracks.go: GetTracksFileInfo, GetTracksSimilar, GetTrackTrailer, GetTrackFullInfo

internal/client/concerts.go

@@ -63,3 +63,23 @@ func (c *Client) GetConcertTabs(ctx context.Context) (*models.ConcertTabConfig,
 	}
 	return &result, nil
 }
+
+// GetArtistConcerts gets concerts by artist (GET /artists/{id}/concerts).
+func (c *Client) GetArtistConcerts(ctx context.Context, artistID string) (*models.ArtistConcerts, error) {
+	var result models.ArtistConcerts
+	if err := c.request.Get(ctx, fmt.Sprintf("/artists/%s/concerts", artistID), nil, &result); err != nil {
+		return nil, err
+	}
+	result.SetClient(c)
+	return &result, nil
+}
+
+// GetConcertSkeleton gets concert skeleton (GET /concerts/{id}/skeletons/{skeleton_id}).
+func (c *Client) GetConcertSkeleton(ctx context.Context, concertID, skeletonID string) (*models.ConcertSkeleton, error) {
+	var result models.ConcertSkeleton
+	if err := c.request.Get(ctx, fmt.Sprintf("/concerts/%s/skeletons/%s", concertID, skeletonID), nil, &result); err != nil {
+		return nil, err
+	}
+	result.SetClient(c)
+	return &result, nil
+}