fix: preserve error cause chains in failure details#310

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YunchuWang wants to merge 2 commits into

microsoft:mainfrom

YunchuWang:copilot-finds/bug/fix-newFailureDetails-missing-inner-failure

Commits on Apr 2, 2026

fix: populate innerFailure from error.cause in newFailureDetails()
Copilot
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Commits on Jul 17, 2026

Address review comments: guard falsy causes, hide recursion depth, rename test

YunchuWang
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