BGTaskSchedulerPermittedIdentifiers io.nekohasekai.sfavt.update_profiles CFBundleURLTypes CFBundleTypeRole Viewer CFBundleURLIconFile AppIcon.icns CFBundleURLName sing-box CFBundleURLSchemes sing-box ITSAppUsesNonExemptEncryption NSApplicationServices Browses NSApplicationServiceIdentifier sing-box:profile NSApplicationServicePlatformSupport iOS iPadOS NSApplicationServiceUsageDescription Import sing-box profile from other devices UIBackgroundModes fetch