Release 2.6.2: disconnect AWG without freezing the UI.

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/core/manager.go

@@ -100,21 +100,33 @@ func (m *Manager) Connect(ctx context.Context, profileName string) error {
 
 func (m *Manager) Disconnect() error {
 	m.mu.Lock()
-	defer m.mu.Unlock()
+	sys := m.sys
+	engine := m.engine
+	m.engine = nil
+	m.profile = nil
+	m.mu.Unlock()
 
 	var first error
-	if m.sys.Enabled() {
-		if err := m.sys.Disable(); err != nil && first == nil {
+	if sys != nil && sys.Enabled() {
+		if err := sys.Disable(); err != nil && first == nil {
 			first = err
 		}
 	}
-	if m.engine != nil {
-		if err := m.engine.Stop(); err != nil && first == nil {
-			first = err
+	if engine != nil {
+		done := make(chan error, 1)
+		go func() { done <- engine.Stop() }()
+		select {
+		case err := <-done:
+			if err != nil && first == nil {
+				first = err
+			}
+		case <-time.After(3 * time.Second):
+			// Engine Stop can block on userspace relays; don't freeze the UI.
+			if first == nil {
+				first = fmt.Errorf("отключение заняло слишком много времени")
+			}
 		}
-		m.engine = nil
 	}
-	m.profile = nil
 	return first
 }