feat: Add GitHub Actions workflow for deploying demo to GitHub Pages

Author: SameedIlyas

.github/workflows/deploy-demo.yml

@@ -0,0 +1,36 @@
+name: Deploy Demo
+
+on:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: write
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+
+      - name: Install dependencies
+        working-directory: demo
+        run: npm ci
+
+      - name: Build Vite project
+        working-directory: demo
+        run: npm run build
+
+      - name: Deploy dist folder to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: demo/dist