The mirror is published and committed. Summary of the result:

Deliverable

• dist/ holds all 10 upstream files, byte for byte: index.html, MANIFEST.json, img/index.json, fonts/index.json, two JPEGs and four WOFF2 fonts. Every one of the 9 entries in MANIFEST.json verified OK with sha256sum -c, and again after writing the published list. No file was edited.
• dist/MANIFEST-PUBLISHED.txt lists the sha256 of each placed file, including MANIFEST.json itself. Since the brief named no edits, index.html matches upstream exactly.
• README.md explains preview, the exact re-mirror and verify commands, publishing, and records the actual check results.
• DESIGN.md documents the tokens, four local fonts, type scale, grids, the single 900 px breakpoint, surfaces and components, all read from dist/index.html with line references.
• artifacts/validation.md is the Better Interface evidence record. The workspace's exclude file keeps artifacts/ untracked, so it is left for the daemon to pick up; the README carries the same results table.

Checks performed

• Rendered export in the IMD browser at 1280, 390 and 320 CSS px: all fonts and the hero image load from relative paths, no horizontal overflow at any width, grids collapse as the CSS says.
• Interactions exercised: swap direction flip, "Connect wallet" with no injected wallet (toast with three wallet deep links), nav anchor to #how, keyboard Tab with a visible focus ring.
• Build and typecheck are not applicable: the site is hand-written HTML with no package manifest, so there is no lockfile to commit.

Findings and limitations

• The review produced 7 findings (notably the amount inputs remove their focus outline, placeholders serve as the only labels, hero content clips at 320 by 640, and the red button's text contrast is 3.40:1). None were applied because the brief forbids any change to the mirrored files; they are recorded for the upstream author.
• The sandbox browser has no internet, so the live chain reads, wallet transactions and external links were not exercised end to end. Screen reader and native zoom tests were not performed.