Add a deploy action

Author: ivanreese

.github/workflows/main.yml

@@ -0,0 +1,43 @@
+name: Build and Deploy
+
+on:
+  push:
+    branches: [main]
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: '24.x'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: node --disable-warning=ExperimentalWarning system/app.ts build
+
+      - name: Upload GitHub Pages artifact
+        uses: actions/upload-pages-artifact@v4
+        with:
+          path: public
+
+  deploy:
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4