~x-ai/grok-latest → B (2:5)

B adds lasting design: chromeless fullscreen compare layout, correct left/right ratio orientation, strength-based edge-history sort, and post-success morph of the new ingest card, backed by unit and browser tests. A is a useful but narrower UX polish—turning a static pinned glyph into the existing set_garden_pin unpin form with CSS and e2e coverage—without comparable structural or correctness impact.