DeleteFileEventRunner

Executes event's logic, ending by calling EventRunningScope.onTrigger (directly or, for a runner whose real work can fail in several distinct ways, from inside a runSafely/try-catch onError branch) with whichever outcome trigger applies — onSuccess()/onFailure() at minimum, plus whatever narrower triggers (onStart(), status-specific ones, cancellation, etc.) this event's own catalog entry declares.