Add GitHub CI workflow to verify build on PR updates

Co-authored-by: chagong <831821+chagong@users.noreply.github.com>

Author: Copilot

.github/workflows/build.yml

@@ -0,0 +1,26 @@
+name: Verify Build
+
+on:
+  pull_request:
+    branches: [main]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Use Node.js 20.x
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20.x"
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Build
+        run: npm run build