add basic tests and PR ci

.github/workflows/ci.yml

@@ -0,0 +1,42 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ci-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  verify:
+    name: Typecheck, test, and build
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Typecheck
+        run: npm run check
+
+      - name: Test
+        run: npm test
+
+      - name: Build
+        run: npm run compile

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
 
       - uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '22'
           cache: npm
 
       - run: npm ci
@@ -32,6 +32,8 @@ jobs:
 
       - run: npm run check
 
+      - run: npm test
+
       - name: Package
         run: npm run package