Restrict Pro sidebar badge to parent pages with children

Only render the Pro badge in the <summary> of folders backed by an
_index.md (i.e., pages with child pages); leaf article links no
longer carry the badge.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: paulOsinski

docs/layouts/_partials/sidebar/render-section-menu.html

@@ -31,10 +31,10 @@
       {{- $linkContent = . }}
     {{- end }}
 
-    {{- /* Pro badge for nodes whose page is marked audience: pro */ -}}
+    {{- /* Pro badge for parent pages (from _index.md with child pages) marked audience: pro */ -}}
     {{- $proBadge := "" -}}
     {{- with $node.Page }}
-      {{- if eq .Params.audience "pro" }}
+      {{- if and (eq .Params.audience "pro") .Pages }}
         {{- $proBadge = `<span class="pro-badge" aria-label="Pro feature">Pro</span>` -}}
       {{- end }}
     {{- end }}
@@ -64,7 +64,7 @@
         </details>
       {{- else }}
         {{- if $node.Page }}
-          <a {{- with $ariaCurrent }} aria-current="{{ . }}" {{- end }} href="{{- $node.Page.RelPermalink }}">{{ $linkContent }}{{ $proBadge | safeHTML }}</a>
+          <a {{- with $ariaCurrent }} aria-current="{{ . }}" {{- end }} href="{{- $node.Page.RelPermalink }}">{{ $linkContent }}</a>
         {{- else }}
           {{- /* Menu-only item with no page */ -}}
           {{ $linkContent }}