[FEATURE] Desktop: use an × instead of a square to close background tasks

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request

Problem Statement

In the desktop app's Code tab, the Background tasks pane closes (ends) a task with a square icon on the task's card. A square is ambiguous here. It is the media-player "stop" symbol, but in the rest of the app, closing something is an ×: the pane itself has an × in its header, right above the cards. So it is not obvious what the square does until you click it, and clicking it ends the task.

Proposed Solution

Use an × for closing a background task, consistent with the rest of the app. Add a tooltip that says what happens, such as "Stop task" or "Close task".

If the button stops a running task, as opposed to dismissing a finished card, a short confirmation would be a good addition for tasks that have been running a while. That way a misclick doesn't throw away a long agent or workflow run.

Alternative Solutions

Keep the square but give it a visible text label ("Stop"), so its action is clear without hovering.

Priority

Low - Nice to have

Feature Category

Other

Use Case Example

I run long research agents and workflows in the background. When I want to close one, I look for an × like everywhere else in the app, and instead find a square whose meaning I have to guess.

Platform: Claude desktop app (macOS), Code tab, Claude Code 2.1.286.