Turn an approved app blueprint into concrete visual ground truth — design tokens plus self-contained per-screen HTML mockups that builds are later verified against. Use when the user says "mockups", "design baseline", "ground truth", "make the comps", after a blueprint is approved, or when blueprint changes (new version, approved director-07-feature-impact map) require specific screens to be regenerated. Do not use for production frontend code — this produces review artifacts, not app code.
