feat: add partner management and withdrawal admin pages

- Admin partners page: list partners, view applications, approve/reject
- Admin partner detail: stats, commission management, campaign assignment
- Admin withdrawals page: list with risk scoring, status filters including cancelled
- Admin withdrawal detail: fraud analysis, approve/reject/complete actions
- Partner API client with full TypeScript interfaces
- Withdrawal API client with admin and user endpoints
- Referral page: partner application form, withdrawal balance and history
- Navigation: partners and withdrawals in admin panel marketing group
- i18n: full translations for ru, en, zh, fa locales
- Neutral fallbacks for unknown status badges

src/pages/AdminPanel.tsx

@@ -186,6 +186,16 @@ const SparklesIcon = () => (
   </svg>
 );
 
+const HandshakeIcon = () => (
+  <svg className="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={1.5}>
+    <path
+      strokeLinecap="round"
+      strokeLinejoin="round"
+      d="M15 19.128a9.38 9.38 0 0 0 2.625.372 9.337 9.337 0 0 0 4.121-.952 4.125 4.125 0 0 0-7.533-2.493M15 19.128v-.003c0-1.113-.285-2.16-.786-3.07M15 19.128v.106A12.318 12.318 0 0 1 8.624 21c-2.331 0-4.512-.645-6.374-1.766l-.001-.109a6.375 6.375 0 0 1 11.964-3.07M12 6.375a3.375 3.375 0 1 1-6.75 0 3.375 3.375 0 0 1 6.75 0Zm8.25 2.25a2.625 2.625 0 1 1-5.25 0 2.625 2.625 0 0 1 5.25 0Z"
+    />
+  </svg>
+);
+
 const CogIcon = () => (
   <svg className="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={1.5}>
     <path
@@ -449,6 +459,18 @@ export default function AdminPanel() {
           title: t('admin.nav.wheel'),
           description: t('admin.panel.wheelDesc'),
         },
+        {
+          to: '/admin/partners',
+          icon: <HandshakeIcon />,
+          title: t('admin.nav.partners'),
+          description: t('admin.panel.partnersDesc'),
+        },
+        {
+          to: '/admin/withdrawals',
+          icon: <BanknotesIcon />,
+          title: t('admin.nav.withdrawals'),
+          description: t('admin.panel.withdrawalsDesc'),
+        },
       ],
     },
     {