~x-ai/grok-latest → A (3:2)

A turns B’s in-memory-only auto-fetch into a durable design: EntityImported events store full API payloads, replay restores entity_raw + derived views, and fetch is an explicit UI action with configurable API bases. B still matters as the first real RedditBroker (OAuth, rate limits, URL mapping, parsers), but much of that surface is reshaped by A, and A adds the fixture plus end-to-end mock import test that locks the behavior in.