The api_docs.view ability was missing from layoutAuth after removing
the sidebar.admin_nav_item slot from the api-docs module. Add a
HelpCenterLayoutProvider that checks the ability via AuthorizationService
and provides the result in layout nav context (help-center.nav). Panel
template now reads can_view_api_docs from the provider instead of
layoutAuth.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
