Referencing secrets.* in a step-level if: expression makes GitHub reject
the whole workflow file at parse time: every push to any branch produced
a startup-failure run for release.yml with zero jobs ('Code Scanning
could not...' style runs named .github/workflows/release.yml). The tags
trigger was irrelevant because an unparseable workflow has no readable
triggers.
Fix: evaluate the both-secrets-present check in job-level env (where the
secrets context IS allowed) and test env.HAS_GPG_SECRETS in the step if:.
Behavior unchanged: sign when both secrets exist, ship unsigned otherwise.
Devid HW
302a0c5624