site: official website — animated demo, expert brain, 3-D atlas, Pages deploy

A zero-build static site under site/, deployed to GitHub Pages by Actions:

- hero with the pixel hummingbird, key numbers, CTA
- 'watch it think': a chat replay paced at measured decode speeds
  (6x5090 / 128GB CPU / 5070 Ti / 25GB floor), with a live tok/s meter
  and the full 19,456-expert grid — colour = tier, brightness = heat,
  routed experts flash white per token
- the expert atlas as a draggable 3-D galaxy (measured-affinity clusters)
- three-tier explainer and the measured hardware ladder
- single HTML file, no dependencies, no build step; custom domain later
  is just a site/CNAME + DNS

.github/workflows/site.yml

@@ -0,0 +1,36 @@
+name: Deploy website
+
+# Publishes site/ to GitHub Pages. One-time repo setup:
+#   Settings → Pages → Build and deployment → Source: "GitHub Actions".
+# Custom domain later: add site/CNAME with the bare domain, point DNS
+# (A/AAAA to GitHub Pages IPs or CNAME to <org>.github.io), done.
+
+on:
+  push:
+    branches: [main]
+    paths: ['site/**', '.github/workflows/site.yml']
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: pages
+  cancel-in-progress: true
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/configure-pages@v5
+      - uses: actions/upload-pages-artifact@v3
+        with:
+          path: site
+      - id: deployment
+        uses: actions/deploy-pages@v4