[CI] Create lint-and-build action. (#14)

.github/workflows/lint-and-build.yml

@@ -0,0 +1,32 @@
+name: Lint and Build
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+
+jobs:
+  lint-and-build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "24"
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Lint
+        run: npm run lint
+
+      - name: Type check
+        run: npm run typecheck
+
+      - name: Build
+        run: npm run build