~x-ai/grok-latest → A (2:1)

A adds a real end-to-end product capability (pool-scoped /vote, child-pair selection, pool-preserving next navigation, and the item-page entry point) with focused wiring through query, UI action, and success morph. B is largely a relocate-and-retype of existing path/URL helpers into slug-types plus call-site churn; valuable consolidation, but mostly mechanical with little new behavior versus A’s lasting feature surface.