* Add several observability metrics
* [wenxin-tools-584] 【可观测性】支持查看本节点的并发数、剩余block_size、排队请求数等信息
* adjust some metrics and md files
* trigger ci
* adjust ci file
* trigger ci
* trigger ci
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Co-authored-by: K11OntheBoat <your_email@example.com>
Co-authored-by: Jiang-Jia-Jun <163579578+Jiang-Jia-Jun@users.noreply.github.com>