docs: publish generated repo wiki (52 pages) Architecture reference generated from the repo-wiki for the termsprawl workspace: app shell, canvas/nodes, terminals and tmux continuity, persistence, chat, git, browser nodes, Server Edition, relay, integrations and settings. Six pages covering the agent-tools feature are held back because they cite files that exist in no commit yet, so publishing them would document unreleased work as shipped. Source citations are permalinks pinned to 0d4393b, so all cited files resolve. Built on top of GitHub's initial page rather than replacing it.