Release 3.8.2.3: cheaper poll I/O, batched macOS sysproxy, no Connect Clone.

Trust corebin cache without Stat; batch networksetup; ActiveProxyURI instead of Config.Clone.

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

internal/apphost/app.go

@@ -238,10 +238,12 @@ func (a *App) ConnectProfile(name string) error {
 			return err
 		}
 	}
-	if p, err := a.Mgr.Config().ActiveProfile(); err != nil {
+	proxy, err := a.Mgr.ActiveProxyURI()
+	if err != nil {
 		a.mu.Unlock()
 		return err
-	} else if strings.TrimSpace(p.Proxy) == "" {
+	}
+	if strings.TrimSpace(proxy) == "" {
 		a.mu.Unlock()
 		return fmt.Errorf("сначала вставьте ссылку сервера")
 	}
@@ -420,10 +422,12 @@ func (a *App) PingBest(autoConnect bool) (PingBestResult, error) {
 		out.Connected = true
 		return out, nil
 	}
-	if p, err := a.Mgr.Config().ActiveProfile(); err != nil {
+	proxy, err := a.Mgr.ActiveProxyURI()
+	if err != nil {
 		a.mu.Unlock()
 		return out, err
-	} else if strings.TrimSpace(p.Proxy) == "" {
+	}
+	if strings.TrimSpace(proxy) == "" {
 		a.mu.Unlock()
 		return out, fmt.Errorf("пустая ссылка у лучшего сервера")
 	}