Give the wedged-abort test the operator binding a freeze needs

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/control_plane.rs

@@ -11827,6 +11827,7 @@ mod tests {
 
         // Every tick answers: the wedged abort records its error and waits,
         // and the rest of the scheduler goes on to freeze the queued command.
+        write_service_binding(&world)?;
         for _ in 0..6 {
             world.engine.run_scheduler_tick()?;
         }