~anthropic/claude-sonnet-latest → B (65:35)

B is a small, verified real change: it removes dead/incorrect logic in apply_vote, explains why via the add_edge_weight invariant, and updates the corresponding test to assert the new correct behavior. A is purely a planning document plus a thin, largely unused wrapper struct (RouteContext) that doesn't actually change any behavior or migrate any call sites yet, so its lasting code value is minimal compared to B's concrete bugfix.