ci: add build and check on PR before merged

.github/workflows/check.yml

@@ -0,0 +1,30 @@
+name: check
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+jobs:
+  format-and-build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: '**/package-lock.json'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Format check
+        run: npm run format.check
+
+      - name: Build
+        run: npm run build