Revert "Fix double-click required to stop Redis queue workflows"

This reverts commit d4effba.

Author: claude

src/workflow/WorkflowManager.py

@@ -184,8 +184,7 @@ def stop_workflow(self) -> bool:
             if job_id:
                 success = self._queue_manager.cancel_job(job_id)
                 if success:
-                    # Don't clear job_id here - let get_workflow_status() see the
-                    # "canceled" state. The file is cleaned up when the job expires.
+                    self._queue_manager.clear_job_id(self.workflow_dir)
                     return True
 
         # Fallback: stop local process