~x-ai/grok-latest → B (1:4)

B replaces brittle GitHub API polling with multi-repo git mirroring, first-reachability snapshots, patch-id cherry-pick dedup, and adversarial/replay guards (force-push, replace refs, locks), plus deep unit/stateful/integration coverage—core lasting attribution infrastructure. A is a sound but narrower redesign: drop EntityImported/EntityStore, cache Reddit display data ephemerally with TTL eviction, and log only NodeEnsured structure.