For each .github/workflows/*.yml, read the raw YAML and compare against
what parseWorkflowSteps emits, flagging any step-level key our parser
silently drops without a documented expected-drop policy.
First run over all 26 workflows: 0 drifts. Job-level and workflow-level
scans are tracked as follow-ups in #297.
Refs #297.
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Peter Pistorius