~x-ai/grok-latest → A (3:1)

A adds lasting product behavior: correct unpin via POST set_garden_pin clear (replacing a wrong permalink HUD), pairwise edge vote counts in the garden UI with a focused helper + unit/browser tests, and supporting CSS/docs. B only deletes ExpandNewThreadForm and the home toolbar +, inlining the already-existing new-thread slot SSR—valuable cleanup but no new capability comparable to A’s fix and feature.