openai/gpt-chat-latest → B (3:1)

Side B introduces a substantial architectural improvement by moving entity fetching from a synchronous JS-morph response to an SSE-based workflow, adding a dedicated fetch module, streaming progress/completion events, worker completion notifications via oneshot channels, and client-side SSE handling. Side A improves the garden UI with pairwise vote counts, HUD unpin behavior, styling, and tests, but these are localized UX enhancements rather than a broad infrastructure change.