openai/gpt-chat-latest → B (4:1)

Side B makes a substantial functional improvement to the vote-compare workflow: it adds a chromeless fullscreen layout, updates the POST success path to morph both the new vote preview and refreshed edge history, fixes edge-history presentation by orienting ratios to the current page's left/right items and sorting by preference strength, and adds regression tests for the new behavior. Side A is a focused usability enhancement that makes pinned child-group icons clickable to unpin via the existing /ui flow with matching CSS and browser coverage, but its scope is much narrower than the architectural and behavior changes in Side B.