[Requests and ideas] It is unfortunate that you loose chat history when you delete a session.

**Mood:** 😊
**Category:** Requests and ideas

It is unfortunate that you loose chat history when you delete a session. Ideally, I would be able to keep the wortree structure clean without loosing chat history.

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| Field | Value |
| --- | --- |
| App version | 1.0.15 |
| OS | macOS 26.5.1 |
| Theme | GitHub |
| Path | /chat |
| Tenure | Day 1 |

从 /chat 路径开始，跟踪当前如何处理会话删除和聊天历史记录。定义在保留会话历史记录的同时删除会话时的预期行为，然后确定受影响的持久化和 UI 区域；当可以清理 worktree 且不会丢失可访问的聊天历史记录时，即视为完成。

由索引模型根据 Issue 内容生成。