CLI 模式下设置 Secondary Model 时 config.toml 的 key 错误

What version of Kimi Code is running?

0.36.1

Which open platform/subscription were you using?

coding plan

Which model were you using?

not relevant

What platform is your computer?

Linux

What issue are you seeing?

在 Kimi Code CLI 模式下，当用户尝试设置 secondary model 时，工具向 config.toml 写入的 key 是 default_model。然而这个 key 似乎不会被正确识别。
对比之下，在 Kimi Code Web 界面设置 secondary model 时，写入 config.toml 的 key 是 model，这是正确的且可以正常工作的。

[secondary_model]
default_effort = "xxx"
default_model = "xxx"   <- created by kimi code cli /setting, which is not working. 
model = "xxx"

What steps can reproduce the bug?

1. 打开终端，使用 Kimi Code CLI
2. 执行设置 secondary model 的操作（例如通过交互式配置或命令）
3. 检查生成的 config.toml 文件
4. 发现写入的 key 为 default_model
5. 重启或重新加载后，secondary model 配置未生效

预期行为

CLI 模式下设置 secondary model 时，应写入 config.toml 的 key 为 model，与 Web 端行为保持一致。

What is the expected behavior?

CLI 模式下设置 secondary model 时，应写入 config.toml 的 key 为 model，与 Web 端行为保持一致。

Additional information

No response

Start by locating the CLI interactive configuration or command that writes the [secondary_model] section of config.toml. Compare its key selection with the Web configuration behavior, then verify that setting a secondary model writes model rather than default_model. Reproduce the reported steps and reload the configuration to confirm the secondary model takes effect.