openai/gpt-5.3-chat → A (3:1)

Side A introduces a new user-facing capability (unpinning directly from ranked child groups), wiring it through UI, server rendering, form handling, CSS, and end-to-end browser tests. It meaningfully expands interaction flow and consistency with existing pin controls. Side B refines visual encoding of rank rows with better normalization and solid tests, but it’s a contained presentation improvement rather than new functionality.