build: add ci config that runs trunk check

.github/workflows/ci.yaml

@@ -0,0 +1,23 @@
+name: Trunk Check
+on: [push]
+concurrency:
+  group: ${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+permissions: read-all
+
+jobs:
+  trunk-check:
+    runs-on: ubuntu-latest
+    permissions:
+      checks: write # For trunk to post annotations
+      contents: read # For repo checkout
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+      - run: npm ci
+      - uses: trunk-io/trunk-action@v1
+        with:
+          check-mode: all