Restore complete reasoning traces for DeepSeek in chat
Fixes an issue where DeepSeek reasoning output via the Codex runtime could be incomplete or missing in chat. Includes internal diagnostics improvements.
Fixes
- Fixed an issue where reasoning output from DeepSeek models running through the Codex runtime could fail to pass back correctly, resulting in incomplete or missing reasoning traces during chat.
Improvements
- Improved internal failure diagnostics to help us catch and resolve chat issues faster.