2026-10-16

Hub playbook uses a single - require: '@antora-supplemental/facto-stack' compose extension (v0.2.2+) so member packages register from the pack; @antora-supplemental/build-stack footer attribution stays depth-1 (facto-stack, portal catalog extension).

Pack supplies Lunr site search, @antora-supplemental/antora-search-chat Search/Ask omnibox, Kroki diagrams, page-context metadata, nav typology, link validation, and related maint extensions via programmatic registration (Ask remains unconfigured until a searchChat.backend_url is set on the pack).

Upgraded the UI bundle to valentus-theme v2 and copied nav-typology companion UI into supplemental-ui/.

Enabled folder URLs via urls.html_extension_style: indexify and keyword listing under /docs/keywords/.