openai/gpt-5.2-chat → A (9:1)

Side A introduces a substantial new feature: a full pairwise vote compare UI (/vote), new HTML rendering module, pair selection algorithm with prioritization and tests, integration tests, storage normalization improvements, JS/CSS updates, and backend changes to support morphing edge history. It spans many new files and meaningful logic (~1000+ lines). Side B is purely formatting and import reordering with no behavioral changes. Therefore, Side A contributes overwhelmingly more.