refactor(llm-bridge): improve log and trace

[woorui]

1. Enhance llm bridge logging, add service, namespace, traceId, requestId, duration field.
2. The Bridge's http handler supports the injection of tracer.
3. Yomo exports the global trace client.
4. Add new ResponseWriter struct, the ResponseWriter supports record errors and TTFT timing.

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1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
yomo	⬜️ Ignored (Inspect)	Visit Preview		Nov 21, 2024 9:21am

[codecov]

Codecov Report

Attention: Patch coverage is 78.21229% with 39 lines in your changes missing coverage. Please review.

Project coverage is 77.87%. Comparing base (2221a74) to head (bd44464).

Files with missing lines	Patch %	Lines
pkg/bridge/ai/api_server.go	69.01%	18 Missing and 4 partials ⚠️
pkg/bridge/ai/response_writer.go	79.54%	6 Missing and 3 partials ⚠️
pkg/bridge/ai/service.go	87.75%	5 Missing and 1 partial ⚠️
pkg/bridge/ai/ai.go	0.00%	1 Missing ⚠️
pkg/trace/trace.go	90.90%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #938      +/-   ##
==========================================
- Coverage   78.01%   77.87%   -0.14%     
==========================================
  Files          51       52       +1     
  Lines        3725     3810      +85     
==========================================
+ Hits         2906     2967      +61     
- Misses        649      668      +19     
- Partials      170      175       +5     

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