Test this preview deploy against what the PR promises

Acceptance-test pull request [PR URL] using its preview deployment. Read the PR description and any linked issue to extract the actual acceptance criteria — what behavior is supposed to change. Then open the preview deploy (from the Vercel bot comment or the PR's checks section) and verify each claim hands-on: exercise the new behavior, the old behavior it replaces, and the edge cases around it. Screenshot each verified behavior. Also spot-check that the change did not visibly break the page it lives on, and note any console errors. Deliver: a checklist of claims marked verified, not working, or could not test, with screenshots as evidence, plus a one-line recommendation — approve, request changes with the specific gaps, or needs a human look. Write it so I can paste it directly as a PR review comment.