feat: add Jupiter and Donut payment provider support

- METHOD_LABELS entries for jupiter and donut
- Custom SVG icons: Jupiter (planet with ring), Donut (glazed donut)
- Admin settings tree nodes: payments_jupiter, payments_donut
- Locale strings (ru/en/zh/fa) for descriptions and admin labels

src/constants/paymentMethods.ts

@@ -20,6 +20,8 @@ export const METHOD_LABELS: Record<string, string> = {
   aurapay: 'AuraPay',
   etoplatezhi: 'Etoplatezhi',
   antilopay: 'Antilopay',
+  jupiter: 'Jupiter',
+  donut: 'Donut',
   apple_iap: 'Apple In-App Purchase',
   manual: 'Ручное пополнение',
 };