add test pipeline

.github/workflows/ci.yml

@@ -0,0 +1,23 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  build:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: 18
+      - name: Install Dependencies
+        run: npm ci
+      - name: Build
+        run: npm run build
+      - name: 🧪 Run Tests
+        run: npm test