fix: calculate average time when no queue

src/modules/queue/domain/usecases/formula/queue-time.formula.ts

@@ -28,7 +28,7 @@ export class QueueTimeFormula {
     });
 
     const times = itemQueue.items.map((item) => item.play_estimation ?? 0);
-    const average = math.mean(times) * 60 * 1000; // change average minute to milliseconds
+    const average = times.length > 0 ? math.mean(times) * 60 * 1000 : 0; // change average minute to milliseconds
 
     const calledQueue = await this.queueDataService.lastQueue(item_queue_id);