html_export_graph_links

Graph node hrefs must resolve to idea pages from every export page depth, including nested idea, file, and cluster pages.
Node urls should be export-root-relative so path segments such as ideas / are not dropped when resolving from nested pages.
When html_export_url_base is set, runtime resolution of those urls must honour the mount prefix ( same contract as page and asset hrefs ).
External file nodes should resolve to html_export_file_pages or html_export_code_reference_pages when those page families are enabled.

Interactive page: html_export_graph_links