refactor: Update response types to use common schemas across API endpoints

app/api/v1/playlists.py

@@ -8,6 +8,7 @@ from sqlmodel.ext.asyncio.session import AsyncSession
 from app.core.database import get_db
 from app.core.dependencies import get_current_active_user_flexible
 from app.models.user import User
+from app.schemas.common import MessageResponse
 from app.schemas.playlist import (
     PlaylistAddSoundRequest,
     PlaylistCreateRequest,
@@ -120,10 +121,10 @@ async def delete_playlist(
     playlist_id: int,
     current_user: Annotated[User, Depends(get_current_active_user_flexible)],
     playlist_service: Annotated[PlaylistService, Depends(get_playlist_service)],
-) -> dict[str, str]:
+) -> MessageResponse:
     """Delete a playlist."""
     await playlist_service.delete_playlist(playlist_id, current_user.id)
-    return {"message": "Playlist deleted successfully"}
+    return MessageResponse(message="Playlist deleted successfully")
 
 
 @router.get("/search/{query}")
@@ -165,7 +166,7 @@ async def add_sound_to_playlist(
     request: PlaylistAddSoundRequest,
     current_user: Annotated[User, Depends(get_current_active_user_flexible)],
     playlist_service: Annotated[PlaylistService, Depends(get_playlist_service)],
-) -> dict[str, str]:
+) -> MessageResponse:
     """Add a sound to a playlist."""
     await playlist_service.add_sound_to_playlist(
         playlist_id=playlist_id,
@@ -173,7 +174,7 @@ async def add_sound_to_playlist(
         user_id=current_user.id,
         position=request.position,
     )
-    return {"message": "Sound added to playlist successfully"}
+    return MessageResponse(message="Sound added to playlist successfully")
 
 
 @router.delete("/{playlist_id}/sounds/{sound_id}")
@@ -182,14 +183,14 @@ async def remove_sound_from_playlist(
     sound_id: int,
     current_user: Annotated[User, Depends(get_current_active_user_flexible)],
     playlist_service: Annotated[PlaylistService, Depends(get_playlist_service)],
-) -> dict[str, str]:
+) -> MessageResponse:
     """Remove a sound from a playlist."""
     await playlist_service.remove_sound_from_playlist(
         playlist_id=playlist_id,
         sound_id=sound_id,
         user_id=current_user.id,
     )
-    return {"message": "Sound removed from playlist successfully"}
+    return MessageResponse(message="Sound removed from playlist successfully")
 
 
 @router.put("/{playlist_id}/sounds/reorder")
@@ -198,14 +199,14 @@ async def reorder_playlist_sounds(
     request: PlaylistReorderRequest,
     current_user: Annotated[User, Depends(get_current_active_user_flexible)],
     playlist_service: Annotated[PlaylistService, Depends(get_playlist_service)],
-) -> dict[str, str]:
+) -> MessageResponse:
     """Reorder sounds in a playlist."""
     await playlist_service.reorder_playlist_sounds(
         playlist_id=playlist_id,
         user_id=current_user.id,
         sound_positions=request.sound_positions,
     )
-    return {"message": "Playlist sounds reordered successfully"}
+    return MessageResponse(message="Playlist sounds reordered successfully")
 
 
 @router.put("/{playlist_id}/set-current")
@@ -223,10 +224,10 @@ async def set_current_playlist(
 async def unset_current_playlist(
     current_user: Annotated[User, Depends(get_current_active_user_flexible)],
     playlist_service: Annotated[PlaylistService, Depends(get_playlist_service)],
-) -> dict[str, str]:
+) -> MessageResponse:
     """Unset the current playlist."""
     await playlist_service.unset_current_playlist(current_user.id)
-    return {"message": "Current playlist unset successfully"}
+    return MessageResponse(message="Current playlist unset successfully")
 
 
 @router.get("/{playlist_id}/stats")