openai/gpt-chat-latest → A (9:2)

Side A replaces a Reddit import placeholder with a working background fetch system, including request queuing, OAuth support, rate-limit handling, caching/deduplication, JSON parsing, integration into application state, and automatic fetch triggering when Reddit items are viewed or added. Side B is primarily a UI refactor that introduces per-item entity-section selectors for DOM morphing and reuses the existing entity component in the vote page, improving maintainability but adding far less core functionality.