~x-ai/grok-latest → B (2:5)

B replaces brittle GitHub-API commit listing with multi-repo git mirror discovery, immutable snapshots, patch-id cherry-pick dedup, force-push/replace-ref hardening, and replayable attribution wired into emissions—core constitutional infrastructure with deep unit, integration, and Hypothesis coverage. A adds real product value (URL identity policy, SystemIngest, on-demand GitHub resolver UI/tests), but much of the diff is formatting/churn around a feature layer rather than the ownership spine.