- registerType 'prompt' + skipWaiting/clientsClaim false: new SW waits
instead of silently hijacking running sessions
- main.ts registers via virtual:pwa-register; onNeedRefresh shows
dismissible toast (i18n en/ru/cu) with Update button -> updateSW(true)
- No polling — update check only on navigation, zero extra traffic
- Settings About shows __BUILD_DATE__ build stamp for remote debugging
- Button hidden by default; async isPwaInstalled() check (standalone mode,
ponomar-installed flag, getInstalledRelatedApps) unhides only if installable
- Click hint 'already installed' branch uses same multi-signal detection
- manifest id '/' for getInstalledRelatedApps matching on desktop Chrome
catarrh