Edit date-test page (modified April 3) script to create new page, build in date, and fetch update date from git
New section documenting how this site works, starting with how created/lastmod dates flow through archetypes, git, and Hugo.
Scripts: setup.sh, build.sh, serve.sh (Docker-based) Content: about, config, software, posts sections Custom: CSS overrides, HTML sitemap layout, extended_head partial Theme: hugo-theme-terminal via Hugo modules (go.mod)