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

Side A fixes several concrete correctness issues (out-of-band delegate attribution instead of embedding it in post text, erroring rather than silently falling back to an incorrect large pool when siblings <2, removing a dead swap button) and updates route naming with matching test coverage across Rust and Clojure tests. Side B's Deque→Vec refactor removes the write-time trim (trim_recent_votes) in favor of an append-only list capped only at read time, which risks unbounded on-disk growth for hot nodes—a plausible regression—despite adding a decent capping test for in-memory behavior.