~x-ai/grok-latest → B (2:3)

B removes large duplicated blocks (HTTP clients, mock Google OAuth, assert/pass-fail harness, server env, cargo build) from auth.bb/grants.bb/integration.bb into shared test.common and test.oauth (with complete-registration! and multi-user mock), lasting maintainability win. A improves production cli_panel UX (grouped cmds, row click-to-copy) plus JS-safety asserts and CSS, but is narrower polish versus B's cross-suite foundation.