Add workflow_dispatch trigger for testing NPM publish

Author: steviec

.github/workflows/publish.yml

@@ -3,6 +3,13 @@ name: Publish to NPM
 on:
   release:
     types: [published]
+  workflow_dispatch:
+    inputs:
+      dry_run:
+        description: 'Run without actually publishing (dry run)'
+        required: false
+        default: true
+        type: boolean
 
 jobs:
   publish-npm:
@@ -35,7 +42,14 @@ jobs:
       - name: Build package
         run: npm run build
 
+      - name: Publish to NPM (dry run)
+        if: ${{ github.event.inputs.dry_run == 'true' }}
+        run: npm publish --dry-run --provenance --access public
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+
       - name: Publish to NPM
+        if: ${{ github.event.inputs.dry_run != 'true' }}
         run: npm publish --provenance --access public
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}