~x-ai/grok-latest → A (3:2)

A changes core projection storage from a write-capped Deque to an append-only List/Vec with query-time capping, drops the separate post-batch trim_recent_votes path, and bumps schema with a focused regression test—this is a lasting durability/design fix. B mainly relocates existing canonicalization helpers into slug-types and wraps API strings in GardenItemUrl/ForumThreadUrl newtypes, which improves consistency but is largely organizational move/rename churn rather than new behavior.