ci: add HTTP speed check

[yusukebe]

Summary

• Consolidate performance measurement comments from multiple separate comments into a single unified comment
• Integrate HTTP speed benchmarking into the existing performance measurement system
• Maintain backward compatibility for local development workflows

Changes

Performance Measurement Consolidation

• Before: Multiple separate comments (Bundle size + tsc, Bundle size + typescript-go)
• After: Single unified comment with 4 sections:
  1. Bundle size check
  2. HTTP Speed Check ✨ (new)
  3. Compiler Diagnostics (tsc)
  4. Compiler Diagnostics (typescript-go)

HTTP Speed Check Integration

• Move benchmark.ts to scripts/ directory for consistency with other perf-measures
• Add --ci flag for CI-optimized execution (silent mode, JSON output for octocov)
• Automatic bombardier installation in CI
• CI-optimized settings (shorter duration, lower concurrency)
• Preserve detailed comparison mode for local development

Technical Implementation

• Update GitHub Actions job names to reflect new capabilities
• Create consolidated octocov configuration files
• Use script file location for reliable path resolution in CI
• Skip unnecessary build steps in CI mode

Test plan

• Verify GitHub Actions run successfully on this PR
• Confirm that only one performance measurement comment is posted instead of multiple
• Check that the comment includes all 4 sections with proper ordering
• Validate HTTP speed check measurements are accurate and comparable
• Ensure local development workflow remains unchanged

🤖 Generated with Claude Code

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.35%. Comparing base (c549d3e) to head (e7a02cb).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4220   +/-   ##
=======================================
  Coverage   91.35%   91.35%           
=======================================
  Files         168      168           
  Lines       10707    10707           
  Branches     3099     3086   -13     
=======================================
  Hits         9781     9781           
  Misses        925      925           
  Partials        1        1           

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[github-actions]

Bundle size check

	main (c549d3e)	#4220 (35fcbdb)	+/-
Bundle Size (B)	19,027B	19,027B	0B
Bundle Size (KB)	18.58K	18.58K	0K

Compiler Diagnostics (tsc)

	main (c549d3e)	#4220 (35fcbdb)	+/-
Files	261	261	0
Lines	116,441	116,441	0
Identifiers	114,443	114,443	0
Symbols	259,900	259,900	0
Types	162,567	162,567	0
Instantiations	3,039,293	3,039,293	0
Memory used	272,811K	276,095K	3,284K
I/O read	0.02s	0.04s	0.02s
I/O write	0s	0s	0s
Parse time	0.66s	0.83s	0.17s
Bind time	0.27s	0.32s	0.05s
Check time	3.72s	3.99s	0.27s
Emit time	0s	0s	0s
Total time	4.65s	5.14s	0.49s

Compiler Diagnostics (typescript-go)

	main (c549d3e)	#4220 (35fcbdb)	+/-
Files	231	231	0
Lines	106,340	106,340	0
Identifiers	106,183	106,183	0
Symbols	371,551	371,551	0
Types	293,004	293,004	0
Instantiations	3,568,489	3,568,489	0
Memory used	229,662K	229,762K	100K
Memory allocs	10,003,726	10,003,601	-125
Parse time	0.068s	0.074s	0.006s
Bind time	0.016s	0.02s	0.004s
Check time	1.38s	1.518s	0.138s
Emit time	0s	0s	0s
Total time	1.476s	1.624s	0.148s

HTTP speed check

Ping (req/s)	Query (req/s)	Body (req/s)	Average (req/s)
52,794.78req/s	36,333.17req/s	31,029.89req/s	40,052.613req/s

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Reported by octocov