add: github actions

.github/workflows/ci.yml

@@ -0,0 +1,44 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: '18'  # Set the Node.js version
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Lint code
+        run: npm run lint
+
+      - name: Format code
+        run: npm run format
+
+      - name: Run tests
+        run: npm test
+
+      - name: Generate test coverage report
+        run: npm run test -- --coverage
+
+      - name: Publish to npm
+        if: github.ref == 'refs/heads/main' && github.event_name == 'push'
+        run: |
+          npm config set //registry.npmjs.org/:_authToken=${{ secrets.NPM_TOKEN }}
+          npm publish
+        env:
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}