~x-ai/grok-latest → A (3:1)

Commit A replaces a no-op Reddit placeholder with a complete background broker (OAuth, rate-limit/backoff, dedup, JSON parsers for subreddits/posts, tree integration and fetch-on-browse), delivering durable core import capability. Commit B mainly deletes an over-engineered ~1800-line keystroke graph plus race-prone JS/Playwright harness in favor of a short paste-and-go URL parser; that cleanup is valuable but less foundational than A’s working data-import path.