Add docs build

Author: ejsmith

.github/workflows/docs.yml

@@ -0,0 +1,57 @@
+name: Docs
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy-docs:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pages: write
+      id-token: write
+
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+
+      - name: Clean npm cache and dependencies
+        run: |
+          rm -rf node_modules package-lock.json
+          npm cache clean --force
+        working-directory: docs
+
+      - name: Install dependencies
+        run: npm install --force
+        working-directory: docs
+
+      - name: Build documentation
+        run: npm run build
+        working-directory: docs
+        env:
+          NODE_ENV: production
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v4
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: docs/.vitepress/dist
+
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4