[General] Visual Distiction for session "age" when filtering them in "group by project"...

**Mood:** 😊
**Category:** General

Visual Distiction for session "age" when filtering them in "group by project" view? E.g. I have several repos and sessions, sometimes I click on one that finished, but then click away as I checked on something else or did a quick chat, then when done I "can't find" the session that had finished recently. I don't like to toggle the view into "list" because that loses the repo context of the sessions. Basically, I want to see repo and age visually on the left simultanously. Maybe an option to sort the repos by most-recent session? Or have recently-completed sessions "bold" with the older ones are muted gradually based on age? Maybe a little "clock" icon with a short age string in each session to see which are recently-completed turns versus several days ago? Many options here just flagging some ideas.

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| Field | Value |
| --- | --- |
| App version | 0.2.34 |
| OS | Windows 10.0.26200 |
| Theme | GitHub |
| Path | /chat |
| Tenure | Week 2 |

从 /chat 入口开始，检查按项目分组视图，并将其与列表视图进行比较。该 issue 提出了几种可能的年龄指示器，但没有选定其中一种；确认预期行为，并将完成定义为：在显示 repository 上下文的同时，清晰直观地指示 session 的存续时间。

由索引模型根据 Issue 内容生成。