~x-ai/grok-latest → B (1:5)

B redesigns Reddit import around durable EntityImported events (full payload + derived view), explicit user fetch UI, configurable API bases, and a mock end-to-end test—lasting architecture. A only realigns rank-history thread_post_index to strict 0-based paths (expect instead of unwrap_or) with small test/doc tweaks, valuable but narrow.