[需求建议] 建议config.example.yml中增加对Codex里自动审核请求

Codex客户端中走代理自动审核由于配置缺失codex-auto-review，会导致高风险，codex里自动审核不给过。建议示例中增加：
```text
routes:
    # Optional aliases. Provider models are listed directly in the Codex catalog
    # as model(provider) format; routes only add friendly fallback names.
  codex-auto-review:
  model: deepseek-v4-pro
  provider: deepseek
```