fix(cabinet): sweep mobile flex-overflow across all pages + components

Full scan of every page/component for the Connected-Accounts overflow class
(long user data with no truncation pushing siblings off the card on mobile),
adversarially verified. Applied min-w-0 + truncate (break-all for copyable
values, break-words for titles) on text columns and shrink-0 on fixed
siblings across ~23 files: AppHeader, dashboard/SubscriptionCardActive,
subscription purchase/sheets (TariffPurchaseForm, ClassicPurchaseWizard,
SwitchTariffSheet), SuccessNotificationModal, PurchaseSuccess, Wheel sub
picker, ReferralNetwork UserDetailPanel, and the admin pages (AnalyticsTab,
BrandingTab, SubscriptionSubRow, user-detail Info/Referrals tabs,
ApplicationReview, PartnerCampaignAssign, Partners, PromocodeStats,
PromoOfferSend, RemnawaveSquadDetail, TariffCreate, Tickets, Withdrawals).

src/pages/PurchaseSuccess.tsx

@@ -60,9 +60,9 @@ function CopyableField({ label, value }: { label: string; value: string }) {
 
   return (
     <div className="flex items-center gap-2 rounded-xl bg-dark-800/50 px-4 py-3">
-      <div className="flex-1 text-left">
+      <div className="min-w-0 flex-1 text-left">
         <p className="text-xs text-dark-400">{label}</p>
-        <p className="mt-0.5 font-mono text-sm text-dark-100">{value}</p>
+        <p className="mt-0.5 break-all font-mono text-sm text-dark-100">{value}</p>
       </div>
       <button
         type="button"