refactor: Improve code readability by formatting query parameters in user endpoints and enhancing error handling in sound playback

tests/repositories/test_playlist.py

@@ -540,15 +540,19 @@ class TestPlaylistRepository:
 
         # Add first two sounds sequentially (positions 0, 1)
         await playlist_repository.add_sound_to_playlist(
-            playlist_id, sound_ids[0],
+            playlist_id,
+            sound_ids[0],
         )  # position 0
         await playlist_repository.add_sound_to_playlist(
-            playlist_id, sound_ids[1],
+            playlist_id,
+            sound_ids[1],
         )  # position 1
 
         # Now insert third sound at position 1 - should shift existing sound at position 1 to position 2
         await playlist_repository.add_sound_to_playlist(
-            playlist_id, sound_ids[2], position=1,
+            playlist_id,
+            sound_ids[2],
+            position=1,
         )
 
         # Verify the final positions
@@ -630,15 +634,19 @@ class TestPlaylistRepository:
 
         # Add first two sounds sequentially (positions 0, 1)
         await playlist_repository.add_sound_to_playlist(
-            playlist_id, sound_ids[0],
+            playlist_id,
+            sound_ids[0],
         )  # position 0
         await playlist_repository.add_sound_to_playlist(
-            playlist_id, sound_ids[1],
+            playlist_id,
+            sound_ids[1],
         )  # position 1
 
         # Now insert third sound at position 0 - should shift existing sounds to positions 1, 2
         await playlist_repository.add_sound_to_playlist(
-            playlist_id, sound_ids[2], position=0,
+            playlist_id,
+            sound_ids[2],
+            position=0,
         )
 
         # Verify the final positions