fix: add_tracks should return a list of tracks (#19)

docs/usage/library.md

@@ -82,11 +82,13 @@ The first step in most AI audio workflows is to import existing assets for analy
     !!! example
 
         ```pycon
-        >>> new_collection = nendo.library.add_tracks("/path/to/my/files/")
-        >>> type(new_collection)
-        <class 'nendo.schema.core.NendoCollection'>
+        >>> added_tracks = nendo.library.add_tracks("/path/to/my/files/")
+        >>> type(added_tracks)
+        <class 'list'>
         >>> len(new_collection)
         32
+        >>> type(added_tracks[0])
+        <class 'nendo.schema.core.NendoTrack'>
         ```
 
 === "Creating a collection"

src/nendo/library/sqlalchemy_library.py

@@ -1022,15 +1022,15 @@ def add_tracks(
         user_id: Optional[Union[str, uuid.UUID]] = None,
         copy_to_library: Optional[bool] = None,
         skip_duplicate: bool = True,
-    ) -> schema.NendoCollection:
+    ) -> List[schema.NendoTrack]:
         """Scan the provided path and upsert the information into the library.
 
         Args:
             path (Union[str, DirectoryPath]): Path to the directory to be scanned
             track_type (str, optional): Track type for the new tracks
             user_id (UUID, optional): The ID of the user adding the track.
             copy_to_library (bool): Copy and convert the data into the nendo Library?
-            skip_duplicate (bool): Skip adding duplicates?
+            skip_duplicate (bool): Skip adding duplicates.
 
         Returns:
             tracks (list[NendoTrack]): The tracks that were added to the Library
@@ -1047,14 +1047,13 @@ def add_tracks(
                     if AudioFileUtils().is_supported_filetype(file)
                 ],
             )
-        tracks = self._add_tracks_db(
+        return self._add_tracks_db(
             file_paths=file_list,
             track_type=track_type,
             copy_to_library=copy_to_library,
             skip_duplicate=skip_duplicate,
             user_id=user_id,
         )
-        return self.add_collection(name=path, track_ids=[t.id for t in tracks])
 
     def add_track_relationship(
         self,

src/nendo/schema/plugin.py

@@ -1280,7 +1280,7 @@ def add_tracks(
         user_id: Optional[Union[str, uuid.UUID]] = None,
         copy_to_library: Optional[bool] = None,
         skip_duplicate: bool = True,
-    ) -> NendoCollection:
+    ) -> List[NendoTrack]:
         """Scan the provided path and upsert the information into the library.
 
         Args:
@@ -1295,7 +1295,7 @@ def add_tracks(
                 file checksum. Defaults to None.
 
         Returns:
-            collection (NendoCollection): The collection of tracks that were added to the Library
+            List[NendoTrack]: List of tracks that were added to the library.
         """
         raise NotImplementedError