`/delegate` without committing and pushing local changes

### Describe the feature or problem you'd like to solve

I would like to have an option to delegate tasks without committing and pushing local changes.

### Proposed solution

Let's introduce `uncommited` subcommand of `/delegate` command to delegate the task without committing and pushing local changes.

### Example prompts or workflows

`/delegate uncommited do the plan`
`/delegate uncommited complete the API integration tests and fix any failing edge cases`
`/delegate uncommited complete fix failed tests`

or just add "No, proceed" menu item here:

### Additional context

It's annoying that `/delegate` requires to do something with uncommited local changes ( commit and push or stash them) just to be able to delegate the task
Could you please make the command to be able to proceed without it?

先追蹤 /delegate 指令和 issue 中顯示的選單，然後檢查目前在委派前如何處理本機變更。將提議的 `uncommited` 工作流程與現有的指令行為進行比較。完成的標準是：無需 commit、push 或 stash 本機變更即可繼續委派，且受影響的工作流程在有測試的情況下由測試涵蓋。

由索引模型根據 Issue 內容生成。