openai/gpt-chat-latest → A (4:1)

Side A adds substantial new functionality: a background Reddit import system with OAuth support, rate-limit/backoff handling, request deduplication, JSON parsing into project entities, integration into application state, and automatic fetch triggering when Reddit items are browsed or added. Side B is a useful architectural refactor that centralizes path and URL types into `slug-types` and updates API consumers to use those newtypes, but it largely preserves existing behavior rather than adding new capabilities.