debug(ci): Add .npmrc debug step to build workflow

Adds a debug step to the 'build-and-publish.yml' workflow to print the contents of the .npmrc file immediately before the 'npm publish' step.

This will help diagnose the 'ENEEDAUTH' error by showing the exact state of the npm configuration at the time of failure.

.github/workflows/build-and-publish.yml

@@ -52,6 +52,14 @@ jobs:
           echo "version=${NEW_VERSION}" >> "$GITHUB_OUTPUT"
           npm version --no-git-tag-version "${NEW_VERSION}"
 
+      - name: 'Debug .npmrc'
+        run: |
+          echo "--- Listing files in current directory ---"
+          ls -la
+          echo "--- Contents of .npmrc ---"
+          cat .npmrc
+          echo "---------------------------"
+
       - name: 'Publish to GitHub Packages'
         run: |
           if [[ "${{ github.event_name }}" == "pull_request" ]]; then