Tapp v0.16.4

Web QA now reports visible placeholder links, stabilizes dead-control findings against unrelated DOM churn, ignores navigation-aborted resource noise, and avoids terse/media-only blank-page false positives. Clean web results are labeled AUTOMATED CHECKS PASSED rather than SHIP-READY, with content/claim accuracy, API privacy, brand/SEO consistency, and visual credibility explicitly disclosed as unchecked. Verified with two identical 60-action live web runs and a fresh registry install.