Function fmt_date

tools/docs_and_notebooks_check.py:917–918

(d: date | None)

    lines.append(f"- Verification-stale (> {pol.warn_if_verified_older_than_days}d): **{t['verified_stale']}**\n\n")

    def fmt_date(d: date | None) -> str:
        return d.isoformat() if d else "-"

    warn_recs = [r for r in report.records if r.warnings and not (r.meta and r.meta.ignore)]
    warn_recs.sort(