Support GPT-5.6 models and refresh stale brokers#471

alexandrereyes wants to merge 6 commits into

openai:mainopenai/codex-plugin-cc:mainfrom

alexandrereyes:agent/gpt-5-6-models-and-version-negotiationalexandrereyes/codex-plugin-cc:agent/gpt-5-6-models-and-version-negotiationCopy head branch name to clipboard