~x-ai/grok-latest → A (3:1)

A threads CanonicalItemUrl through resolve_item, validation HashSets, pair pools, connectivity stats, and rank-change maps, removing repeated String↔CanonicalItemUrl wrap/parse noise and adding Deref on href newtypes—core type-safety that sticks across the API. B only swaps auth choose-username redirects for HTML fragments plus a small poem JS morph path and CSS, a valuable but narrow UX tweak.