openai/gpt-chat-latest → A (3:2)

Side A makes a durable storage design change by replacing the persisted recent-votes deque with an append-only list, removing post-commit trimming, updating schema versioning, and enforcing the cap at load time with a regression test. Side B improves the vote-compare UI with a fullscreen layout, preview updates, and better edge-history presentation and sorting, but those are primarily user-interface enhancements rather than foundational persistence behavior.