chore: migrate from npm to pnpm

.github/workflows/ci.yml

@@ -10,12 +10,15 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 11
       - uses: actions/setup-node@v4
         with:
           node-version: '22'
-          cache: 'npm'
-      - run: npm ci
-      - run: npm test
-      - run: npx wrangler deploy --dry-run
+          cache: 'pnpm'
+      - run: pnpm install --frozen-lockfile
+      - run: pnpm test
+      - run: pnpm exec wrangler deploy --dry-run
         env:
           CLOUDFLARE_API_TOKEN: dummy

README.md

@@ -63,7 +63,7 @@ Each fire shows up in *History* with status code and response body — open `cla
 ```bash
 git clone https://github.com/tiennm99/claude-code-routine-trigger-worker
 cd claude-code-routine-trigger-worker
-npm install
+pnpm install
 
 # Upload secrets (from Anthropic routine editor → API trigger)
 echo -n 'https://api.anthropic.com/v1/claude_code/routines/trig_.../fire' \
@@ -153,7 +153,7 @@ curl "http://localhost:8787/__scheduled?cron=*+*+*+*+*"
 ### Tests
 
 ```bash
-npm test
+pnpm test
 ```
 
 Vitest runs in the Workers runtime via `@cloudflare/vitest-pool-workers`. Tests mock `fetch`, so they consume no Anthropic quota.

package.json

@@ -5,6 +5,7 @@
   "type": "module",
   "private": true,
   "license": "Apache-2.0",
+  "packageManager": "pnpm@11.1.1",
   "main": "worker.js",
   "scripts": {
     "dev": "wrangler dev",