~x-ai/grok-latest → A (3:2)

A replaces a stub Reddit fetch with a full background broker (OAuth, rate-limit/backoff, dedup, JSON→EntityData mapping, browse/ensure_path hooks, and unit tests), adding a lasting data-import subsystem. B is a useful but smaller product polish: threading an optional pool through /vote, pair suggestion, and post-success nav plus a “vote on children” link—clear UX value without new infrastructure.