~anthropic/claude-sonnet-latest → A (3:1)

Side A adds a real, tested feature (surfacing connectivity stats in the CLI pair output) with concrete implementation and two unit tests verifying formatting behavior. Side B mostly adds a large speculative planning document (plan.md) describing future refactor work not yet done, plus a thin untested RouteContext wrapper that just delegates to ThreadNav without changing any call sites—net lasting code value is minimal compared to A's shipped, verified functionality.