openai/gpt-chat-latest → B (20:1)

Side B introduces substantial functionality and architecture changes: it adds separate fetch modes for entities versus children, extends the Reddit import pipeline with FetchKind, child-list parsing and linking, updates SSE handling to stream executable UI morphs, and redesigns ranking to handle connected components and unranked items. Side A only makes presentation tweaks, such as changing the breadcrumb root label to "~", removing a ranking heading, and adjusting CSS typography and colors.