Add CI workflow (#1)

Author: mattt

.github/workflows/ci.yml

@@ -0,0 +1,33 @@
+name: CI
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+      - run: npm ci
+      - run: npm run test
+
+  deploy:
+    if: github.ref == 'refs/heads/main'
+    needs: test
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+      - name: Build & Deploy Worker
+        uses: cloudflare/wrangler-action@v3
+        with:
+          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
+          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}