I love this app, it's great!

I love this app, it's great!

One request: Can we please have user defined colors/emojis that we can attach to repos in the sessions list? This would make it easier to see what's what.

Bonus: If the set color wraps the chat and canvas areas with a matching color instead of the default grey.

It would make it esaier to visually know where you are and harder to get lost in the wrong repo.

---
| Field | Value |
| --- | --- |
| App version | 1.0.25 |
| OS | Windows 10.0.26100 |
| Theme | GitHub |
| Path | /chat |
| Tenure | Week 3 |

从 /chat 入口开始，检查会话列表，包括 chat 和 canvas 区域的布局方式。在决定用户自定义的颜色和表情符号应放在哪里之前，先追踪 repository 在其中是如何表示的。完成的标准是：repository 可以在会话列表中显示其选定的颜色或表情符号，并且可选的匹配 chat 和 canvas 处理能够正常工作，同时不会遮挡导航。

由索引模型根据 Issue 内容生成。