Migrate from yarn to pnpm and upgrade to Node 24

- Remove yarn.lock and add pnpm-lock.yaml
- Update package.json to use pnpm as package manager
- Update package.json test script to use pnpm
- Update CI workflow to use pnpm instead of yarn
- Upgrade to Node.js 24 (action runtime, CI, and engines)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: riglar

.github/workflows/build-source.yaml

@@ -8,7 +8,7 @@ on:
     paths:
       - 'src/**'
       - 'package.json'
-      - 'yarn.lock'
+      - 'pnpm-lock.yaml'
       - 'tsconfig.json'
 
 jobs:
@@ -26,13 +26,18 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '20.x'
+          node-version: '24.x'
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9
 
       - name: Install Dependencies
-        run: yarn install
+        run: pnpm install
 
       - name: Compile files
-        run: yarn build
+        run: pnpm build
 
       - name: Setup Git Credentials
         run: |

action.yml

@@ -112,7 +112,7 @@ outputs:
     description: 'ID of the uploaded app binary in Device Cloud'
 
 runs:
-  using: 'node20'
+  using: 'node24'
   main: 'dist/index.js'
 branding:
   icon: 'check'