~x-ai/grok-latest → A (3:1)

A removes legacy GitDiscovery/Emission projection paths and makes Evidence envelopes the sole source for epoch/commit pages, tightening Emission required fields and tests—a lasting schema/design cleanup of core ledger honesty. B improves garden UX (vote counts on edges, HUD unpin via POST clear) with solid tests, but it is incremental product polish rather than foundational correctness.