branch diverged and no staged files

Now the status like this
```bash
$ git status
On branch master
Your branch and 'origin/master' have diverged,
and have 4 and 1 different commits each, respectively.
(use "git pull" to merge the remote branch into yours)
All conflicts fixed but you are still merging.
(use "git commit" to conclude merge)
```
here , I have to use `git commit` instead of `git cz`, because no staged files, the `git cz` will report error `No files added to staging! Did you forget to run git add?`.

But I do not want to use `git commit`, do you have any idea to resolve it?

此 issue 未指定檔案或測試。首先重現所示的分支已分歧且正在合併的 Git 狀態，以及 `git cz` 錯誤，然後檢查 CLI 如何處理沒有 staged 檔案的 merge commit。完成標準應是為這個 merge commit 工作流程明確定義解決方案。

由索引模型根據 Issue 內容生成。