- site.yaml keys site_url and site_label, validated: http(s) URL with a host
or a path starting with a single /; a label needs a URL
- docs:build and docs:serve flags --site-url and --site-label override them
the way --base-url overrides base_url
- every page header, the 404 page included, links back with the explicit
label, else the URL host, else Home; unset output is unchanged
- docs/console/utilities.md documents the keys and flags
- WinterCMS-style shell: header with search and theme toggle, grouped
sidebar, on-page TOC, pager, page actions, callouts, heading
permalinks, footer and a 404 page
- fenced code highlighted at build time by chroma/v2 into tok-* classes,
with a copy button; no inline script, style or handler
- vendored DM Sans/DM Mono fonts and Lucide icons with their licences
- client-side search over search-index.json built with textContent only
- summer docs:serve builds into a temp dir, serves on loopback by default,
returns 404.html with status 404 and rebuilds on change
