redesign marketing homepage around public proof and the open stack

[riyandhiman14]

Ships the evidence-first marketing homepage that has been sitting on redesign/marketing-site (15 commits ahead of the deployed main). The live main still shows the older design-partner-first page with no proof block; this brings the public site in line with the product story.

What changes

• Public proof block — surfaces the real benchmark figures (54 of 68 in-scope hits, 79.4% scope-qualified discovery, published Casefiles count), each linking to trace.unboundcompute.com. Figures are synced to the current source of truth (cve-atlas/content/benchmark.json).
• Open-stack chain — Map → Atropos → Lachesis → Researcher, connecting the marketing story to the live subdomains.
• Real evidence artifact on the homepage — a sanitized IDOR/ownership walkthrough as concrete proof (demo alice/bob example; no real target, no credentials).
• Synced public Atropos fact count and published Casefiles count; connected the research section to the evidence stack; aligned social metadata across public pages; accessibility/hierarchy pass; removed internal/demo-only links.

Verification

• make check passes: site contract green — 40 public HTML pages, 40 sitemap URLs.
• Diff scoped to public pages/tools; no secrets or private references.

Notes

• This is review-only; nothing deploys until merged. Flagging that a prior redesign marketing homepage around evidence was reverted once — worth an eyeball on the copy before merge.