feat: add multi-key management

model/channel_cache.go

@@ -70,7 +70,7 @@ func InitChannelCache() {
 	//channelsIDM = newChannelId2channel
 	for i, channel := range newChannelId2channel {
 		if channel.ChannelInfo.IsMultiKey {
-			channel.Keys = channel.getKeys()
+			channel.Keys = channel.GetKeys()
 			if channel.ChannelInfo.MultiKeyMode == constant.MultiKeyModePolling {
 				if oldChannel, ok := channelsIDM[i]; ok {
 					// 存在旧的渠道，如果是多key且轮询，保留轮询索引信息