fix: hide relaySignal from process.listeners()

src/preflight.cts

@@ -16,7 +16,7 @@
 // If a parent process is detected
 if (process.send) {
 	function relaySignal(signal: NodeJS.Signals) {
 		process.send!({
 			type: 'kill',
 			signal,
 		});
@@ -38,11 +38,21 @@
 
 	// Reduce the listenerCount to hide the one set above
 	const { listenerCount } = process;
 	process.listenerCount = function (eventName) {
 		let count = Reflect.apply(listenerCount, this, arguments);
 		if (relaySignals.includes(eventName as any)) {
 			count -= 1;
 		}
 		return count;
 	};
+
+	// Also hide relaySignal from process.listeners()
+	const { listeners } = process;
+	process.listeners = function (eventName) {
+		const result = Reflect.apply(listeners, this, arguments);
+		if (relaySignals.includes(eventName as any)) {
+			return result.filter((listener: any) => listener !== relaySignal);
+		}
+		return result;
+	};
 }