wpa_supplicant: Save config after successfull connection

internal/wifi/wpasupplicant/backend.go

@@ -181,6 +181,12 @@ func (b *WPABackend) Connect(ssid, password string) error {
 		return fmt.Errorf("failed to select network: %v", err)
 	}
 
+	// Save the configuration to persist it across reboots
+	if err := b.iface.SaveConfig(); err != nil {
+		// Log warning but don't fail - connection still works
+		fmt.Printf("Warning: failed to save config: %v\n", err)
+	}
+
 	return nil
 }
 

internal/wifi/wpasupplicant/interface.go

@@ -125,6 +125,15 @@ func (i *WPAInterface) Disconnect() error {
 	return nil
 }
 
+// SaveConfig saves the current configuration to the wpa_supplicant config file
+func (i *WPAInterface) SaveConfig() error {
+	err := i.obj.Call(InterfaceInterface+".SaveConfig", 0).Err
+	if err != nil {
+		return fmt.Errorf("save config failed: %v", err)
+	}
+	return nil
+}
+
 // GetPath returns the D-Bus object path for this interface
 func (i *WPAInterface) GetPath() dbus.ObjectPath {
 	return i.path