feat: add New API channel support

controller/channel.go

@@ -481,6 +481,10 @@ func validateChannel(channel *model.Channel, isAdd bool) error {
 		return fmt.Errorf("渠道额外设置[channel setting] 格式错误：%s", err.Error())
 	}
 
+	if channel.Type == constant.ChannelTypeNewAPI && strings.TrimSpace(channel.GetBaseURL()) == "" {
+		return fmt.Errorf("New API channel base URL cannot be empty")
+	}
+
 	// 如果是添加操作，检查 channel 和 key 是否为空
 	if isAdd {
 		if channel.Key == "" {