Rebuild the lab site on Astro

Replaces the published Hexo output at the repo root with the Astro source it was migrated to, plus the 2026 redesign: GSU Blue masthead and footer, one container width, one text face plus the Fredoka wordmark, and the Hexo behaviours carried over (magic-line, hero lockup, People card mechanic).

Pages now builds from this source through Actions instead of serving a pre-built branch, so the site no longer needs a local hexo generate + deploy.

The previous published output is still in this branch's history: ecf68e1 is the last Hexo deployment.

Author: angushushu

.github/workflows/deploy.yml

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+name: Deploy to GitHub Pages
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: pages
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: npm
+      - run: npm ci
+      - run: npm run build
+      - uses: actions/configure-pages@v4
+      - uses: actions/upload-pages-artifact@v3
+        with:
+          path: ./dist
+      - id: deployment
+        uses: actions/deploy-pages@v4

.gitignore

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+# build output
+dist/
+.astro/
+
+# visual-diff scratch screenshots (kept when run with --keep)
+.visual-diff/
+
+# ad-hoc page screenshots
+.shots/
+
+# reference build for `npm run verify` (created by `npm run snapshot`)
+.baseline/
+
+# dependencies
+node_modules/
+
+# logs
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+# environment variables
+.env
+.env.production
+
+# macOS-specific files
+.DS_Store
+
+# editors
+.vscode/*
+!.vscode/extensions.json
+.idea/