Add code quality checks

.github/workflows/code-quality.yaml

@@ -0,0 +1,31 @@
+name: Check code quality
+
+on:
+  push:
+
+jobs:
+  check-code-quality:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 8
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install
+
+      - run: pnpm lint
+      - run: pnpm typecheck
+      - run: pnpm test
+      - run: pnpx prettier --check .