~x-ai/grok-latest → B (3:2)

B fixes a real product break (/-/ external index querying bogus https://./) via external_root_host_items, and adds lasting structured GitHub import cards (schema, try_render_resolver_item_body, vote-compare/CSS/integration). A is strong core work (deterministic typed BlockMasker, prose ItemRef tokenization, braced body rules, linkify rewrite) but is more narrowly parser/linkify infrastructure versus B’s end-to-end bugfix plus feature surface.