Fix remaining type mismatches vs Python reference

- RotorSettings: Diversity float64→string, Energy float64→int, add Mood int and MoodEnergy string
- Ratings: Rating float64→int, add Week int and Day int
- MetatagArtistEntry: Remove Score float64 (not in Python), add PopularTracks []Track
- MusicHistoryItemData: Remove Progress float64 (not in Python)

internal/models/music_history.go

@@ -110,8 +110,7 @@ type MusicHistoryItemData struct {
 	PlayContext *PlayContext `json:"play_context"`
 	Position    int          `json:"position"`
 	Duration    int          `json:"duration"`
-	Progress    float64      `json:"progress"`
-}
+	}
 
 // MusicHistoryItemID represents music history item ID.
 type MusicHistoryItemID struct {