openai/gpt-chat-latest → A (4:1)

Side A adds an entire Reddit API client with built-in rate limiting, structured request/error handling, comprehensive serde models for Reddit posts/comments, and helper methods for extracting typed data, providing substantial new functionality. Side B mainly exposes an existing room-creation RPC through the CLI, updates documentation, and simplifies the server by removing the unused room visibility field and changing room storage from a map to a set; these are useful refinements but much smaller in lasting functional impact.