fix(library): remove track from playlist

src/library.rs

@@ -105,7 +105,7 @@ impl Library for LibraryService {
     async fn add_track_to_playlist(
         &self,
         request: Request<AddTrackToPlaylistRequest>,
-    ) -> Result<Response<()>, Status> {
+    ) -> Result<Response<TrackList>, Status> {
         let input = request.get_ref();
 
         let Ok(success) =
@@ -118,13 +118,21 @@ impl Library for LibraryService {
             return Err(Status::internal(""));
         }
 
-        Ok(Response::new(()))
+        let Ok(playlist) = get_playlist(&self.pool, input.playlist_id).await else {
+            return Err(Status::internal(""));
+        };
+
+        let response = TrackList {
+            tracks: playlist.tracks,
+        };
+
+        Ok(Response::new(response))
     }
 
     async fn remove_track_from_playlist(
         &self,
         request: Request<RemoveTrackFromPlaylistRequest>,
-    ) -> Result<Response<()>, Status> {
+    ) -> Result<Response<TrackList>, Status> {
         let input = request.get_ref();
 
         let Ok(success) =
@@ -137,7 +145,15 @@ impl Library for LibraryService {
             return Err(Status::internal(""));
         }
 
-        Ok(Response::new(()))
+        let Ok(playlist) = get_playlist(&self.pool, input.playlist_id).await else {
+            return Err(Status::internal(""));
+        };
+
+        let response = TrackList {
+            tracks: playlist.tracks,
+        };
+
+        Ok(Response::new(response))
     }
 
     async fn swap_tracks(