openai/gpt-chat-latest → A (5:1)

Side A fixes concrete regressions in the OAuth test infrastructure by correcting query parsing (`str/split` regex), reading POST bodies from `getRequestBody`, handling null tokens/state safely, fixing redirect responses, wrapping handlers to avoid crashes, and updating Playwright test interactions to use real selectors. Side B mostly restructures the URL canonicalization module by replacing the old engine with new graph/parse modules and updating documentation, but the patch shown primarily removes code and redirects APIs without demonstrating the substantive replacement implementation.