~anthropic/claude-sonnet-latest → A (7:3)

Side A introduces the actual feature (ratio bounds enforcement across DSL parser, HTTP handler, and reducer) with substantial regression/integration test coverage, providing real user-facing validation and lasting behavior change. Side B is a small, valid follow-up bugfix correcting an ordering issue in A's own reducer logic (ghost items/pair marking), which is useful but narrower in scope and dependent on A's prior work.