Fix pulse-and-reappear quit bug on macOS

Force a clean process exit when the user clicks close. Works around a
pywebview 6.2 + macOS 26 Tahoe interaction where the first close click
would only flash the window instead of fully quitting. The closing
event now calls os._exit(0) directly.

Author: cbrwe

peanut_desktop.py

@@ -201,13 +201,16 @@ def run_server():
     # webview.start() blocks until the window closes. confirm_close=False
     # means closing the window quits immediately. When this returns,
     # server_thread (daemon) dies with the main thread.
+    # Force a clean exit when the user clicks the close button.
+    # Works around a macOS Tahoe + pywebview 6.2 quirk where the first
+    # close click only "pulses" the window instead of fully quitting.
+    # os._exit() bypasses any pywebview/macOS reload logic.
+    window.events.closing += lambda: os._exit(0)
+
     webview.start(debug=False)
 
 
 if __name__ == "__main__":
     main()
 
 
-
-if __name__ == "__main__":
-    main()