{#- korvid footer. Replaces Material's default footer meta — a lone "Made with Material for MkDocs" line — with a footer that actually identifies the project: the original korvid mark, the tagline from `site_description`, the four destinations a reader most often wants next, and the license. Internal links go through MkDocs' `url` filter because the site is served from the `/korvid/` subpath on GitHub Pages; a hardcoded `/ops/` would work locally and 404 in production. The upstream theme attribution stays. -#}