Observability tasks, adding interface-level service registration buried points for registry indicators

[songxiaosheng]

• I have searched the issues of this repository and believe that this is not a duplicate.

Describe the proposal

en:
Observability tasks, adding interface-level service registration buried points for registry indicators
At present, the request response indicators of the application-level service discovery model can be monitored in the indicator monitoring in the 3.2 branch. The service registration and subscription at the interface level have not been counted for the time being. Some interaction indicator burying points need to be added

中文：
可观测性任务，为注册中心指标增加接口级的服务注册埋点
目前3.2分支中指标监控中已经可以监控到应用级服务发现模型的请求响应指标， 接口级的服务注册与订阅暂时未进行统计需要增加一些交互指标埋点

[wxbty]

pls assign me