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

B fixes a real bug (hardcoded staging hostnames breaking custom-host deploys) by consolidating logic into a shared util function used across six OAuth integration files, and correctly wires up CI deploy triggers—improving deployability and maintainability. A is a decent focused bugfix/cleanup for the vote/compare route (better error handling, dead code removal) but is more narrowly scoped UI polish with smaller lasting architectural impact than B's cross-cutting infrastructure fix.