~anthropic/claude-sonnet-latest → B (3:2)

Side B is a substantive type-safety refactor threading CanonicalItemUrl through resolve_item, pair selection, rank-change computation, and validation, eliminating repeated ad-hoc String/CanonicalItemUrl wrapping and adding Deref impls plus a new test — real reduction of bug surface across multiple files. Side A is a useful but tiny config simplification (one glob pattern replacing enumerated namespaces) with no code or test logic changes, offering less lasting engineering value despite solving a real discoverability problem.