openai/gpt-chat-latest → B (3:2)

Side B adds meaningful user-facing functionality and supporting infrastructure: it introduces pairwise vote counts in the garden UI via a new `edge_vote_count_for_pair` helper, changes the pin HUD into an in-place unpin action using `POST /ui`, updates styling, and adds both unit and browser tests to verify the behavior. Side A is a solid, targeted bug fix that skips stickied/pinned Reddit posts during import with a helper and regression test, but its scope and long-term impact are narrower.