GitHub Actions doesn't allow referencing workflow-level env variables
from job-level env sections. Fixed by:
- Replacing ${{ env.PYTEST_OPTS_BASE }} with full values in job-level env
- Keeping ${{ env.PYTEST_OPTS_BASE }} in step-level env (which is valid)
This resolves the "Unrecognized named-value: 'env'" errors.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>