👷 ci: Add lint and format checks to CI workflow

.github/workflows/build.yml

@@ -9,7 +9,35 @@ on:
   pull_request:
 
 jobs:
+  check:
+    strategy:
+      fail-fast: false
+      matrix:
+        check: [lint, format]
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v5
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: 22
+          cache: pnpm
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Run ${{ matrix.check }}
+        run: pnpm ${{ matrix.check }}
+
   build:
+    needs: check
     strategy:
       fail-fast: false
       matrix: