~x-ai/grok-latest → A (3:1)

Side A adds a complete, production-ready Reddit API client (rate-limited requests, typed serde models for posts/comments/listings, custom deserializers, and helper extractors) that forms lasting foundational infrastructure. Side B only consolidates duplicated hostname logic into a shared util, switches deploys to staging, and makes frontend origins dynamic—valuable correctness fixes but narrower in scope and impact.