[WIP]feat: add start/end local span

[mariodu]

• 添加 start/end local 调用节点功能，对外暴露使用。

[codecov-io]

Codecov Report

Merging #131 into master will increase coverage by 0.27%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master     #131      +/-   ##
==========================================
+ Coverage   81.18%   81.46%   +0.27%     
==========================================
  Files         182      179       -3     
  Lines        5825     5729      -96     
  Branches      753      750       -3     
==========================================
- Hits         4729     4667      -62     
+ Misses        765      732      -33     
+ Partials      331      330       -1

Impacted Files	Coverage Δ
packages/metrics/src/trace/TraceManager.ts	66% <66.66%> (-0.67%)	⬇️
packages/metrics/src/collect/MetricsCollector.ts	70% <0%> (-15.3%)	⬇️
packages/pandora/src/daemon/DaemonBootstrap.ts	86.2% <0%> (-3.54%)	⬇️
packages/metrics/src/common/MetricsRegistry.ts	80.32% <0%> (-3.28%)	⬇️
packages/metrics/src/common/MetricBuilder.ts	80% <0%> (-1.82%)	⬇️
packages/metrics/src/reporter/CustomReporter.ts	75% <0%> (-1.48%)	⬇️
packages/metrics/src/MetricsServerManager.ts	81.76% <0%> (-0.82%)	⬇️
packages/pandora/src/monitor/MonitorManager.ts	86.48% <0%> (-0.7%)	⬇️
...ackages/metrics/src/metrics/os/CpuUsageGaugeSet.ts	96.73% <0%> (-0.24%)	⬇️
packages/hook/src/patch/HttpServer.ts	92.5% <0%> (-0.19%)	⬇️
... and 16 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 667f8cb...412f781. Read the comment docs.