~x-ai/grok-latest → A (2:1)

A removes the entire legacy GitDiscovery/Emission projection path (_legacy_commit_row, dual epoch/commit rendering, optional Emission fields) so pages and APIs read only Evidence envelopes—a lasting schema/design simplification with matching test updates. B is a solid but narrower UX change: auth POSTs return HTML fragments and poem JS morphs form innerHTML instead of redirecting, plus minor CSS—valuable polish, not core model cleanup.