fix(go): capture CLI stderr and fix SetProcessDone race#863

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claudiogodoy99 wants to merge 6 commits intogithub:mainfrom

claudiogodoy99:fix/capture-cli-stderr

Commits on May 9, 2026

test(go): validate stderr not captured and SetProcessDone race on process exit

claudiogodoy99
authored and
stephentoub
committed
fix(go): capture CLI stderr and fix SetProcessDone race

claudiogodoy99
authored and
stephentoub
committed
test(go): avoid breaking portability

authored and
stephentoub
committed
fix(tests): read stderr msg and exit code from env vars in TestHelperProcess to match newStderrTestCommand

claudiogodoy99
authored and
stephentoub
committed
fix: use bounded ring buffer for CLI stderr capture to prevent unbounded memory growth

claudiogodoy99
authored and
stephentoub
committed
fix: add new package truncbuffer

claudiogodoy99
authored and
stephentoub
committed