Release 4.1.0+1: Store-compliance UI rework — tabs Защита/Мои серверы/Настройки/Статистика/Помощь; provider chooser (EvilFox highlighted + NordVPN/ExpressVPN/Surfshark, clean links); «Активировать ключ» wording; human-readable server names (host:port in server properties only); proxy ports moved to advanced settings/stats; traffic progress bar on main; account info on Мои серверы; connect spinner; ping test buttons. Windows 4.1.0.1.

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

internal/apphost/app.go

@@ -419,12 +419,16 @@ func (a *App) AutoCheckUpdate() {
 }
 
 // allowedLinkHosts are the only hosts the UI may open in the default browser
-// (shop button + «Рекомендуемые сервисы» block in index.html).
+// (shop button, «Рекомендуемые сервисы» and provider cards in index.html).
+// Competitor links are plain URLs without referral codes (Store policy).
 var allowedLinkHosts = map[string]bool{
-	"evilfox.win":   true,
-	"t.me":          true,
-	"de4ima.uk":     true,
-	"git.de4ima.uk": true,
+	"evilfox.win":    true,
+	"t.me":           true,
+	"de4ima.uk":      true,
+	"git.de4ima.uk":  true,
+	"nordvpn.com":    true,
+	"expressvpn.com": true,
+	"surfshark.com":  true,
 }
 
 // LinkAllowed validates that raw is an http(s) URL pointing at one of the