Ensure proper cancellation of in-flight workflow tasks#1819

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thepatrickchin wants to merge 7 commits intoNVIDIA:developfrom

thepatrickchin:fix/oauth-retry

Commits on Mar 23, 2026

fix: allow retry after OAuth Stop Generating via task cancellation
thepatrickchin
committed
fix: guard _done_callback from clearing a newer workflow task reference
thepatrickchin
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fix: clear pending observability trace on task cancellation
thepatrickchin
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feat: add runner tests
thepatrickchin
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fix: snapshot conversation_id at callback creation time
thepatrickchin
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fix: await cancelled workflow task before starting replacement
thepatrickchin
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fix: make pending observability trace cleanup cancellation-safe.
thepatrickchin
committed