Create PR is silently dropped when dialog is dismissed and you switch tasks

[richardsolomou]

Problem

If I click Create PR, then click outside the dialog to dismiss it, and move to a different task, the PR is never actually created. There's no error and no indication that the action was abandoned — it just silently doesn't happen.

Steps to reproduce

1. On a task, click Create PR to open the create-PR dialog.
2. Click outside the dialog (or otherwise dismiss it) instead of clicking the dialog's Create PR button.
3. Navigate to a different task.

Expected

Either the PR gets created, or it's clear the action was cancelled. Dismissing the dialog by clicking out shouldn't quietly throw away an in-progress create-PR intent.

Actual

No PR is created. The draft fields (branch, commit message, PR title/body) are persisted, but nothing was submitted, and there's no feedback.

Likely cause

Dismissing the dialog fires Radix onOpenChange(false) → closeCreatePr(), which only flips createPrOpen and saves the draft — it never triggers the create. Navigating to a different task remounts TaskActionsMenu with the new taskId, recreating the useGitInteraction hook and abandoning the prior closure.

Relevant locations:

• packages/ui/src/features/git-interaction/components/TaskActionsMenu.tsx — onOpenChange only calls closeCreatePr()
• packages/ui/src/features/git-interaction/state/gitInteractionStore.ts — closeCreatePr saves draft, sets createPrOpen: false, nothing else
• packages/ui/src/features/git-interaction/useGitInteraction.ts — runCreatePr is only invoked by the dialog's submit button
• packages/ui/src/shell/HeaderRow.tsx — <TaskActionsMenu taskId={activeTask.id} /> remounts on task change