feat: link the Holographic Estate (3D showcase) from the developer hub

README.md

@@ -27,6 +27,15 @@ the roadmap**; L3 / FedRAMP / Iron Bank / CMMC are **not claimed**.
 Both endpoints return Doctrine v11 from `/healthz`: 749 declarations / 14 axioms / 163 sorries,
 locked at `c7c0ba17`. **Λ = Conjecture 1, NOT a theorem.** Service images are SLSA Build L1 honest (cosign keyless-signed, Rekor-anchored); L2 verified-provenance on the roadmap (L3 not claimed).
 
+### ◇ Featured: the Holographic Estate
+
+See the frontier tier rendered as one live 3D holographic lattice — ~50 governed surfaces
+(frontier organs, energy, counter-UAS, governance, PINN, anatomy), each lit by a live a11oy
+endpoint. Vendored WebGL2 with optional WebGPU; **0 runtime CDN**. Every value carries its
+honesty label. Mobile-friendly.
+
+**[Open the Holographic Estate →](https://szlholdings-a11oy.hf.space/holographic)**
+
 ## Docs
 
 | File | Purpose |

site/index.html

@@ -31,6 +31,7 @@ <h1>Every action signed.<br/>Every decision gated.<br/>Every receipt verifiable.
     <div style="display:flex; gap:12px; margin-top:22px; flex-wrap:wrap;">
       <a class="btn primary" href="reference.html#quickstart">Sign your first receipt →</a>
       <a class="btn ghost" href="reference.html">Read the API reference</a>
+      <a class="btn ghost" href="https://szlholdings-a11oy.hf.space/holographic">◇ Holographic Estate (3D)</a>
     </div>
   </header>