When MD file is create mid chat, there is no simple button to open it (or pre...

When MD file is create mid chat, there is no simple button to open it (or preview it). you can see the raw text in the chat, but would be nice to click it an preview in canvas, just like you can do with artifacts / plan etc.

---
| Field | Value |
| --- | --- |
| App version | 1.0.26 |
| OS | Windows 10.0.26200 |
| Theme | Polychrome |
| Path | /chat |
| Tenure | Week 5 |

从 /chat 入口开始，追踪对话期间创建的 Markdown 文件是如何呈现的，并将这一行为与 artifacts 和 plans 进行比较。当生成的 Markdown 文件提供一个简单操作，可以在 canvas 中打开或预览它，而不是只显示原始文本时，即视为完成。

由索引模型根据 Issue 内容生成。