~x-ai/grok-latest → A (3:1)

A replaces an unreliable ~1.8k-line keystroke graph parser (plus parser_action, racey frontend, and Playwright race test) with a small, tested paste-and-go URL parser and redirect that permanently fixes the UX by design. B is a solid centralization of path canonicalization into slug-types with GardenItemUrl/ForumThreadUrl newtypes, but it mostly relocates existing helpers and tightens types rather than changing product behavior.