move workspace/agent buttons


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I think it would be better UX-wise if the run buttons were at the same place.
I expect to be able to go from run button to run button, and it isn't the case currently, and I find it pretty unintuitive.

I think the icons should be in the following order:
| | | | | |
|---------------|---|----------|-----------|-----|
| **Workspace** | | settings | open page | run |
| **Agents** | | | | run |

未指定檔案或測試。首先定位用於呈現 Workspace 和 Agents 動作按鈕的 UI 入口點，然後將它們目前的順序與螢幕截圖和表格進行比較。對應的執行按鈕在要求的位置對齊，且周圍的動作維持其預期順序，即表示完成。

由索引模型根據 Issue 內容生成。