openai/gpt-chat-latest → A (3:2)

Commit A delivers a user-facing functional improvement by making pinned child-group icons clickable to unpin, wiring the existing POST flow into an additional UI surface, updating rendering, styling, and adding an end-to-end browser test that verifies the behavior across multiple navigation scenarios. It affects several components and improves usability. Commit B is a solid refinement that changes rank-row coloring from list-position-based to score-range-based normalization, with a clean helper function and good unit test coverage, but it is primarily a visualization improvement rather than adding new interaction capability. Both are valuable, but A has the broader product impact and implementation scope.