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

Side A introduces a genuinely new architecture (GlobalTree/NodeState hierarchical model, canonical ItemId URL parsing/normalization, breadcrumb navigation) with accompanying unit tests, replacing the flat scope-based ranking system — a substantial, lasting design shift that the codebase clearly builds on later (fetch/render modules in B depend on this tree). Side B is a smaller, useful cleanup (fixing duplicate-id morph targets, deduplicating vote-card rendering by reusing entity_section) but is narrower in scope and fixes a bug introduced by prior work rather than establishing new capability, and even contains a stray formatting glitch in the match arm indentation.