fix: msg cache

internal/msgtransfer/online_msg_to_mongo_handler.go

@@ -77,6 +77,10 @@ func (mc *OnlineHistoryMongoConsumerHandler) handleChatWs2Mongo(ctx context.Cont
 	for _, msg := range msgFromMQ.MsgData {
 		seqs = append(seqs, msg.Seq)
 	}
+	if err := mc.msgTransferDatabase.DeleteMessagesFromCache(ctx, msgFromMQ.ConversationID, seqs); err != nil {
+		log.ZError(ctx, "remove cache msg from redis err", err, "msg",
+			msgFromMQ.MsgData, "conversationID", msgFromMQ.ConversationID)
+	}
 }
 
 func (*OnlineHistoryMongoConsumerHandler) Setup(_ sarama.ConsumerGroupSession) error { return nil }