enhance: add request timeout to access logs

[aoiasd]

pr: https://github.com/zilliztech/milvus-cloud-plugin/pull/254

Summary

Add request timeout fields for gRPC and REST access logs, including default formatter output and focused coverage for the new metric.

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: aoiasd
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Details

Needs approval from an approver in each of these files:

• configs/OWNERS
• internal/distributed/OWNERS
• internal/proxy/OWNERS

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[sre-ci-robot]

[ci-v2-notice]
Notice: New ci-v2 system is enabled for this PR.

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[mergify]

@aoiasd Please associate the related issue to the body of your Pull Request. (eg. "issue: #")

[sre-ci-robot]

✅ CI Loop Results f9c80bf

Stage	Result	Duration	Tests
✅ Build	SUCCESS	13.2min	-
✅ Code-Check	SUCCESS	7.1min	-
✅ UT-GO	SUCCESS	23.4min	1012 passed
✅ UT-Integration	SUCCESS	24.4min	46 passed
✅ UT-CPP-Cov	SUCCESS	52.6min	7725 passed

Total: 72min | Pipeline | Artifacts

Overall Coverage: 70.6%
Diff Coverage: Go 64.9% (24 hit, 13 miss, 37 measurable lines)
Total Patch Coverage: 64.9% (24/37 measurable lines)

[sre-ci-robot]

✅ CI Loop Results 7e5e76c

Stage	Result	Duration	Tests
✅ Build	SUCCESS	14.2min	-
✅ Code-Check	SUCCESS	6.6min	-
✅ UT-GO	SUCCESS	23.5min	1012 passed
✅ UT-Integration	SUCCESS	24.9min	46 passed
✅ UT-CPP-Cov	SUCCESS	56.6min	7725 passed

Total: 74min | Pipeline | Artifacts

Overall Coverage: 68.6%
Diff Coverage: Go 70.6% (24 hit, 10 miss, 34 measurable lines)
Total Patch Coverage: 70.6% (24/34 measurable lines)

[codecov]

Codecov Report

❌ Patch coverage is 75.00000% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 78.49%. Comparing base (3851df6) to head (7e5e76c).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
internal/proxy/accesslog/info/grpc_info.go	57.14%	4 Missing and 2 partials ⚠️
internal/proxy/accesslog/info/restful_info.go	90.90%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #50004       +/-   ##
===========================================
- Coverage   84.54%   78.49%    -6.05%     
===========================================
  Files         668     2216     +1548     
  Lines      113722   384107   +270385     
===========================================
+ Hits        96145   301522   +205377     
- Misses      17525    73397    +55872     
- Partials       52     9188     +9136     

Components	Coverage Δ
Client	80.59% <ø> (∅)
Core	85.29% <ø> (ø)
Go	76.48% <75.00%> (∅)

Files with missing lines	Coverage Δ
...distributed/proxy/httpserver/timeout_middleware.go	70.07% <100.00%> (ø)
internal/proxy/accesslog/info/info.go	92.64% <100.00%> (ø)
internal/proxy/accesslog/info/restful_info.go	68.92% <90.90%> (ø)
internal/proxy/accesslog/info/grpc_info.go	86.41% <57.14%> (ø)

... and 1544 files with indirect coverage changes

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