~anthropic/claude-sonnet-latest → B (6:4)

B introduces a real architectural feature (a hierarchical ItemId/GlobalTree fractal-scope system replacing flat scope strings, with breadcrumbs, entity panels, and journal worker rename) backed by substantial new tests, whereas A mostly removes an unused visibility field from room creation (a minor simplification/cleanup) plus doc/CLI wiring for an existing feature. B's diff, while larger, represents genuine feature depth (URL canonicalization, tree traversal, UI rendering) rather than churn, though it also carries more risk/complexity that could be seen as scope creep in a single commit named vaguely 'reconfigure'.