feat(topup): direct-open payment page when method.open_url_direct is set

User asked for the gift-style seamless flow on balance top-up: provider
checkout opens inside Telegram MiniApp WebView without a click-to-open link
panel. Made it an admin per-method toggle so it can be enabled selectively.

src/pages/TopUpAmount.tsx — on topup mutation success:
* Move saveTopUpPendingInfo to BEFORE any redirect so /balance/top-up/result
  can still pick up the pending payment after the provider's return_url fires
* If method?.open_url_direct === true AND the URL is not a t.me/ deep link
  (Stars/CryptoBot), window.location.href = redirectUrl and return early
* Otherwise fall through to the existing setPaymentUrl panel — preserves
  current behavior for methods without the flag enabled

The t.me/ guard is important: window.location.href to a Telegram deep link
inside a MiniApp WebView is unreliable (native shell cant always intercept).
Those URLs continue to go through openTelegramLink / openInvoice in the panel
path. Stars never reaches topUpMutation.onSuccess anyway (handled by the
separate starsPaymentMutation); the guard is defense-in-depth for CryptoBot
and any future t.me-deep-link providers.

src/pages/AdminPaymentMethodEdit.tsx — added Open URL directly toggle with
the same slider styling as the is_enabled toggle. Defaults to off.

src/types/index.ts
* PaymentMethod.open_url_direct?: boolean (user-facing)
* PaymentMethodConfig.open_url_direct: boolean (admin shape)

Translations added for ru/en/zh/fa with a hint clarifying behavior and the
t.me/ exemption.

src/types/index.ts

@@ -442,6 +442,9 @@ export interface PaymentMethod {
   max_amount_kopeks: number;
   is_available: boolean;
   options?: PaymentMethodOption[] | null;
+  // Если true — после получения payment_url кабинет сразу делает
+  // window.location.href вместо показа панели с кнопкой "Открыть".
+  open_url_direct?: boolean;
 }
 
 // Referral types
@@ -682,6 +685,7 @@ export interface PaymentMethodConfig {
   first_topup_filter: 'any' | 'yes' | 'no';
   promo_group_filter_mode: 'all' | 'selected';
   allowed_promo_group_ids: number[];
+  open_url_direct: boolean;
   is_provider_configured: boolean;
   created_at: string | null;
   updated_at: string | null;