Grade an existing product page — capture it, score it against the standards catalogue and pattern inventory, and return ranked improvement suggestions. Use when the ask is to review, critique, audit, judge, improve, or polish a page WITHOUT naming a change or a pass dimension — including "I don't like it", "what's wrong here", and re-audit asks ("re-check this page against the catalogue", e.g. after new controls land). Propose-only: findings are recorded on the surface's design ticket, and dx-design-execute builds accepted ones. NOT for a stated change or a new page — that is dx-design-execute; NOT for one of the five pass dimensions — that is the matching pass; NOT for g…