~x-ai/grok-latest → B (1:3)

B fixes real import/display bugs: Reddit children attach via apply_entity_under_parent (no ensure_path nesting) and unranked rows use stored titles through GlobalTree, with wired call sites and integration coverage. A only switches rank-row coloring from list ordinal to min–max score gradient—a correct UI polish, but narrower and non-functional versus B’s lasting data-path and labeling fixes.