misc: present self with a "portal-agent" slug in menu.json (#28105)

combo/manager/views.py

@@ -485,8 +485,17 @@ def menu_json(request):
         label = _('Editing "%(site_title)s"') % settings.TEMPLATE_VARS
     else:
         label = _('Content Management')
+
+    slug = 'portal'
+    if getattr(settings, 'KNOWN_SERVICES') and 'combo' in settings.KNOWN_SERVICES:
+        # switch to custom slug if the site is the portal agent.
+        for service_slug, service in settings.KNOWN_SERVICES['combo'].items():
+            if service.get('is-portal-agent') and not service.get('secret'):
+                slug = 'portal-agent'
+                break
+
     json_str = json.dumps([{'label': force_text(label),
-        'slug': 'portal',
+        'slug': slug,
         'url': request.build_absolute_uri(reverse('combo-manager-homepage'))
         }])
     content_type = 'application/json'