openai/gpt-chat-latest → A (3:2)

Side A makes a lasting application-level improvement by changing the auth flow from redirects to HTML fragments, adding reusable rendering helpers, and extending the shared Poem JS form handler to morph returned HTML for inline success/error feedback while preserving existing empty-response behavior. Side B primarily repairs test infrastructure and OAuth mocks (query parsing, request body reading, null handling, redirect responses, and exception handling), which is valuable for reliability but is confined to the test environment rather than the product's core behavior.