fix(ci): add scope to setup-node for npm registry publishing (#23)

The second setup-node action was missing the scope parameter, causing
npm publish to use the GitHub Packages registry config from the first
setup-node instead of the npmjs.org registry.

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

Author: frankieyan

.github/workflows/publish.yml

@@ -45,6 +45,7 @@ jobs:
               with:
                   node-version-file: .node-version
                   registry-url: https://registry.npmjs.org/
+                  scope: '@doist'
 
             - name: Publish package to npm registry
               run: npm publish --access public --provenance