[Feature] 支持openrouter保留推理过程的选项

[XY20130630]

问题描述 使用openrouter提供的deepseek r1 api时，发现需要开启一个选项，才能输出推理功能。

We're excited to announce Reasoning Tokens, a new feature that lets you observe how models reason, both in the Chatroom and via the API. Reasoning tokens provide a transparent look into the reasoning steps taken by a model. To use, add include_reasoning: true to your API request. When enabled, reasoning tokens will appear in the reasoning field of each message:

解决思路 能否像官方deepseek app那样，在下方增加一个“保留推理过程”的按钮。 点击之后，自动在payload中加上这个选项。

[jeef111111]

这真的很需要，希望作者能添加一下

[Xi-Gong]

已经在小红书上跟原作者账号反馈了，但没有得到回复，可能跟Chatbox推出的订阅服务存在竞品关系

[anwar3606]

It seems to be working: