~x-ai/grok-latest → A (2:1)

A ships a lasting production design fix: entity sections become per-ItemId data-attribute morph targets (no shared #entity-section/#entity-panel IDs), fetch streams use entity_section_selector, and vote-compare reuses entity_section instead of a parallel card/CSS path. B only consolidates duplicated Babashka test helpers (assert/ANSI, cargo build, server env, mock Google/HTTP) into common/oauth—valuable maintainability, but no product behavior or architecture change.