openai/gpt-chat-latest → B (3:2)

Side B changes the auth flow from redirect-based responses to inline HTML fragments, extends the shared Poem form interceptor to morph returned HTML into the existing form, and factors reusable auth form rendering into fragments. This is a broader architectural improvement that enables smoother form interactions without affecting existing empty-body POST handlers, whereas Side A primarily enhances the garden UI with vote counts, HUD unpin behavior, styling, and related tests.