- step() test helper now carries skillName, so the WS-6 round-trip fixture
actually exercises the INVERSION CONTRACT for skillName (was silently dropped).
- executeWorkflowStep now strips an inherited FUSION_HEADLESS on board runs
(unattended=false), preserving the U3 default-safe invariant — a board step
nested under a headless-env parent could otherwise skip user questions.
Added a regression test for the inherited-env strip.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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