Add Node.js CI workflow for testing and building

.github/workflows/node.js.yml

@@ -0,0 +1,31 @@
+name: Node.js CI
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    env:
+      PORT: 3000
+      BASE_PATH: /
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+
+      - name: Enable Corepack (pnpm)
+        run: corepack enable
+
+      - name: Install dependencies
+        run: pnpm install
+
+      - name: Run build
+        run: pnpm run build