Users page, README and config.example updates, implementation notes, the rollout runbook, site-layout 404/500 pages, human-readable download sizes, dark-mode and narrow-screen polish, and a smoke test over every dashboard route; also removes zdiff3 ancestor markers left by earlier merges. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHyYupFdBiR4VfoUM7NjSM