feat: add quality_score field to Track model and update related functionality

Fixes #51

app/models.py

@@ -58,9 +58,12 @@ class Track(db.Model):
     jellyfin_id = db.Column(db.String(120), nullable=True)  # Add Jellyfin track ID field
     download_status = db.Column(db.String(2048), nullable=True)
     provider_id = db.Column(db.String(20))
+    
 
     # Many-to-Many relationship with Playlists
     playlists = db.relationship('Playlist', secondary=playlist_tracks, back_populates='tracks')
+    
     lidarr_processed = db.Column(db.Boolean(), default=False)
+    quality_score = db.Column(db.Float(), default=0)
     def __repr__(self):
         return f'<Track {self.name}:{self.provider_track_id}>'