~x-ai/grok-latest → A (3:1)

A lands core product machinery: bridge-aware pair selection in pair.rs, the full /vote compare UI and in-place morph path (vote_recorded_morph, vote_compare flag), plus ItemId::from_storage normalization with tests—lasting design for ranking. B is a precise, necessary production fix (force OAuth when creds exist, AuthRejected + refresh on 401/403, fly.toml base URL) but narrower in scope than the vote/pair subsystem.