~x-ai/grok-latest → B (2:1)

B adds foundational product infrastructure: GitHub OAuth, session cookies, pseudonym claims, identity events (PrincipalCreated/OauthLinked/PseudonymClaimed) projected into durable maps, and vote gating via resolve_vote_actor—real multi-user auth with e2e coverage. A is a strong, precise design fix (drop EntityImported/EntityStore, cache Reddit display ephemerally with 48h eviction, log NodeEnsured only), but narrower in scope; B’s durable out-of-tree move is mostly relocation noise and does not outweigh the auth subsystem’s lasting value.