~x-ai/grok-latest → B (2:5)

B lands lasting identity architecture (UUID-only principals, multi-provider OAuth linking with conflict handling, private linked-provider UI, Reddit OAuth end-to-end, and projection/trust-weight fixes) that the product depends on. A is solid systems work—deleting the demo counter and adding a settlement worker plus ranking cache/read paths—but it is mostly internal cleanup and optimization versus B’s foundational auth model.