Add npm trusted publishing workflow

Author: Copilot

.github/workflows/publish.yml

@@ -0,0 +1,24 @@
+name: publish
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      id-token: write
+    steps:
+      - uses: actions/checkout@v4
+      - name: Use Node.js 22
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          registry-url: https://registry.npmjs.org
+      - run: npm ci
+      - run: npm run build
+      - run: npm test
+      - run: npm publish --provenance --access public