CPA反代Codex后"降智"的解决办法

在 CPA 的 config.yaml 末尾添加 payload 覆盖规则：

payload:
  override:
    - models:
        - name: "gpt-*"
          protocol: "codex"
      params:
        "reasoning.effort": "xhigh"
  filter:
    - models:
        - name: "gpt-*"
      params:
        - "response_format"