openai/gpt-chat-latest → B (3:2)

Side B includes a functional improvement by adding a missing #[test] so the `set_new_thread_compose_expanded_true` test is actually executed, alongside targeted code-quality fixes such as replacing a complex return type with a type alias and modernizing APIs (`is_some_and`, pattern destructuring). Side A mostly removes a wrapper `section` around the vote-compare markup and adjusts CSS for ranking list presentation, which are primarily UI/layout changes with less lasting impact on correctness or maintainability.