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

Side B fixes a real production bug (cloud IPs falling back to public Reddit API and getting blocked) with proper OAuth retry-on-401/403 logic, better error surfacing, and a config fix in fly.toml — a concrete operational reliability improvement. Side A is a thoughtful refinement of pair-selection heuristics with good test coverage, but it's an internal algorithm tweak with more speculative long-term value compared to B's fix for an actively broken production path.