Renaming branchs is painful.

Renaming branchs is painful. First of all, I can't change the default branch prefix to use a prefix that includes the issue number.
I create a worktree with the correct branch name but then the branch is renamed (why?!). Then you don't allow me to rename it again: "... tool only permits one rename per session and the branch ..."

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| Field | Value |
| --- | --- |
| App version | 1.0.25 |
| OS | macOS 15.7.2 |
| Theme | GitHub |
| Path | /chat |
| Tenure | Week 6 |

从 /chat 流程开始，并使用所提供的应用版本和 macOS 详细信息重现报告中的行为。检查默认分支前缀、由 worktree 创建的分支以及每个会话只能重命名一次的限制之间如何相互作用。当所请求的 issue 编号前缀和预期的分支重命名流程能够在没有报告中的限制的情况下正常工作时，即视为完成。

由索引模型根据 Issue 内容生成。