~x-ai/grok-latest → B (1:4)

B fixes a real tokio RwLock reentrancy deadlock in RoomCreate/RoomGrant by dropping the read guard before nested lock acquires, and backs it with an integration test plus test-harness changes (log redirection, HTTP timeouts) that prevent related hangs. A only refactors the CLI hint UI into a multi-command hover-to-copy panel with CSS and assert guards—useful polish, but not a lasting correctness fix like B.