refactored many events to use wails bindings, reducing boilerplate

backend/queue/queue.go

@@ -130,10 +130,9 @@ func NewQueue(logger *slog.Logger, db *database.DB) *Queue {
 	}
 }
 
-// SetContext sets the Wails runtime context and registers event handlers.
+// SetContext sets the Wails runtime context for event emission.
 func (q *Queue) SetContext(ctx context.Context) {
 	q.ctx = ctx
-	q.registerEventHandlers()
 }
 
 // SetPlayer provides the queue with a reference to the player for auto-advance.