feat: persist messages separately and update ingress docs

app/gosqs/change_message_visibility_batch.go

@@ -93,6 +93,8 @@ func ChangeMessageVisibilityBatchV1(req *http.Request) (int, interfaces.Abstract
 				} else {
 					queue.Messages[i].VisibilityTimeout = time.Now().Add(time.Duration(entry.VisibilityTimeout) * time.Second)
 				}
+				// Персистим изменённое сообщение отдельно
+				persistence.SaveMessage(key, &queue.Messages[i])
 				messageFound = true
 				break
 			}