openai/gpt-5.3-chat → B (1:5)

Side A is a small cleanup removing a redundant guard and adjusting tests—useful but limited in scope and impact. Side B delivers a substantial UI/UX fix and enhancement: correcting vote highlighting logic, introducing consistent slider-based visualization, improving CSS behavior, refining data mapping, and adding multiple targeted tests. It affects more components (HTML, JS, CSS, tests) and fixes user-visible behavior, making it significantly more impactful.