[Init] Initial commit - NetMesh terminal manager

electron/appWindowLifecycle.cjs

@@ -0,0 +1,26 @@
+"use strict";
+
+/**
+ * Electron's window-all-closed event includes hidden plugin host windows. Use
+ * the WindowManager's explicit app-content registry to decide when the user
+ * has closed the last Netcatty window instead.
+ */
+function createAppContentWindowClosedHandler(options) {
+  const { app, windowManager, platform = process.platform } = options;
+  if (!app || typeof app.quit !== "function") {
+    throw new TypeError("App content window lifecycle requires app.quit()");
+  }
+  if (!windowManager || typeof windowManager.getAppContentWindows !== "function") {
+    throw new TypeError("App content window lifecycle requires WindowManager content tracking");
+  }
+
+  return function handleAppContentWindowClosed() {
+    if (platform === "darwin" || windowManager.getIsQuitting?.()) return false;
+    const remaining = windowManager.getAppContentWindows();
+    if (!Array.isArray(remaining) || remaining.length > 0) return false;
+    app.quit();
+    return true;
+  };
+}
+
+module.exports = { createAppContentWindowClosedHandler };