openai/gpt-chat-latest → A (5:1)

Side A implements substantial new functionality: a background Reddit fetch broker with request deduplication, rate-limit/backoff handling, optional OAuth, JSON parsing into project entities, integration into application state, and automatic fetch triggering when Reddit items are browsed or created. Side B mainly removes a large autocomplete/transition-graph system in favor of a much simpler paste-and-go URL parser and redirect UI, reducing complexity but largely replacing existing behavior rather than adding enduring infrastructure.