It stopped working; the session code generated by https://chatgpt.com/api/auth/session was recently changed by OpenAI, and since then it has stopped authenticating. The code previously had 2000 characters and now it has 4000, and its entire format has changed.
2026-02-28 21:02:31,038 | INFO | 10.11.0.21:42340: POST /backend-api/conversation/init HTTP/1.1 401 Unauthorized
2026-02-28 21:02:31,139 | INFO | 10.11.0.21:42330: GET /backend-api/conversations?offset=0&limit=28&order=updated HTTP/1.1 401 Unauthorized