fix(FN-954): allow retry for stuck-killed tasks across all interfaces

- Extend retry API to accept 'stuck-killed' as a retryable status alongside 'failed'
- Update CLI retry command to recognize stuck-killed tasks
- Update pi extension retry tool to handle stuck-killed tasks
- Show retry button in TaskDetailModal for stuck-killed task status
- Add changeset for patch release

packages/dashboard/app/components/TaskDetailModal.tsx

@@ -1243,7 +1243,7 @@ export function TaskDetailModal({
               Refine
             </button>
           )}
-          {task.status === "failed" && onRetryTask && (
+          {(task.status === "failed" || task.status === "stuck-killed") && onRetryTask && (
             <button className="btn btn-warning btn-sm" onClick={handleRetry}>
               Retry
             </button>