Illustrate with HTML

Illustrate, explain, or visualize anything as a single self-contained .html file instead of a wall of markdown, following "The unreasonable effectiveness of HTML." Use when the user wants to SEE something rather than read about it: "illustrate the current workflow", "draw the deploy pipeline", "map these module dependencies", "explain consistent hashing visually", "make me a status report or incident timeline". Trigger too when they never say "HTML" or "diagram" but spatial layout or annotation would communicate better than prose. Produces one polished, openable .html in the Anthropic visual style. Routing: reviewing a PR is pr-review (or pr-visual-review for its structur…