store playcount and duration on the track table

+ allow sorting all items with those two
+ add methods to update scrobble info

app/models/album.py

@@ -29,6 +29,9 @@ class Album:
     title: str
     trackcount: int
     is_favorite: bool
+    lastplayed: int
+    playcount: int
+    playduration: int
     extra: dict
 
     type: str = "album"