~x-ai/grok-latest → A (3:1)

A threads CanonicalItemUrl through resolve_item, validation HashSets, scope-rank maps, pair pools, and connectivity stats while adding Deref on href newtypes, replacing repeated String/parse wrapping with typed APIs across the core server path. B only turns a static pin glyph into an unpin form in child rankings (plus CSS/test updates)—real UX polish, but a narrow UI hook versus A’s lasting type-boundary cleanup.