~x-ai/grok-latest → A (3:1)

A replaces a stub with a full Reddit import path: background broker/worker, OAuth, rate-limit/backoff/dedup, JSON parsing into EntityData, browse/ensure_path hooks, and focused tests—real lasting product capability. B centralizes existing path canonicalization and wire URL helpers into slug-types (GardenItemUrl/ForumThreadUrl) for clearer typed APIs, but is mostly relocate/wrap refactor without new behavior.