~x-ai/grok-latest → A (4:1)

A redesigns the CLI into a lasting public/private scoped command tree (forum list/show/post with required --delegate, path/arg semantics, docs, RPC next-move strings, and integration tests), which permanently shapes agent/user interaction. B only deletes a leftover 1400-line duplicate forum.rs so the already-split forum/ module is unambiguous—a necessary hygiene fix with no new behavior.