~x-ai/grok-latest → A (2:1)

A delivers a lasting product design change: auth posts return HTML fragments, poem JS morphs form innerHTML for inline errors/success, and auth uses the shared layout instead of redirects/a separate layout. B is valuable but narrower—null-safety and HttpServer mock fixes (split regex, getRequestBody, sendResponseHeaders length, try/catch) that restore Clojure E2E auth tests without changing production behavior.