refactor: convert partner/withdrawal modals to separate pages

Replace 7 modal dialogs with 8 dedicated page routes for better
mobile/Telegram WebApp UX. Add campaign management (assign/create
with auto-assign) to partner detail page.

New pages: AdminApplicationReview, AdminPartnerCommission,
AdminPartnerRevoke, AdminWithdrawalReject, AdminPartnerCampaignAssign,
AdminPartnerCampaignCreate, ReferralPartnerApply,
ReferralWithdrawalRequest.

~610 lines removed from parent pages, ~425 lines removed net.

src/pages/AdminPartnerCommission.tsx

@@ -0,0 +1,107 @@
+import { useState, useEffect } from 'react';
+import { useParams, useNavigate, useLocation } from 'react-router';
+import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
+import { useTranslation } from 'react-i18next';
+import { partnerApi } from '../api/partners';
+import { AdminBackButton } from '../components/admin';
+
+export default function AdminPartnerCommission() {
+  const { t } = useTranslation();
+  const { userId } = useParams<{ userId: string }>();
+  const navigate = useNavigate();
+  const location = useLocation();
+  const queryClient = useQueryClient();
+
+  // Try to get current commission from navigate state
+  const passedCommission = (location.state as { currentCommission?: number } | null)
+    ?.currentCommission;
+
+  const { data: partner } = useQuery({
+    queryKey: ['admin-partner-detail', userId],
+    queryFn: () => partnerApi.getPartnerDetail(Number(userId)),
+    enabled: passedCommission === undefined && !!userId,
+  });
+
+  const currentCommission = passedCommission ?? partner?.commission_percent ?? 0;
+  const [commissionValue, setCommissionValue] = useState(String(currentCommission));
+
+  // Sync commission value when data loads asynchronously
+  useEffect(() => {
+    if (partner?.commission_percent != null && passedCommission === undefined) {
+      setCommissionValue(String(partner.commission_percent));
+    }
+  }, [partner?.commission_percent, passedCommission]);
+
+  const updateMutation = useMutation({
+    mutationFn: (commission: number) => partnerApi.updateCommission(Number(userId), commission),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['admin-partner-detail', userId] });
+      queryClient.invalidateQueries({ queryKey: ['admin-partners'] });
+      navigate(`/admin/partners/${userId}`);
+    },
+  });
+
+  return (
+    <div className="animate-fade-in">
+      {/* Header */}
+      <div className="mb-6 flex items-center gap-3">
+        <AdminBackButton to={`/admin/partners/${userId}`} />
+        <h1 className="text-xl font-semibold text-dark-100">
+          {t('admin.partnerDetail.commissionDialog.title')}
+        </h1>
+      </div>
+
+      <div className="rounded-xl border border-dark-700 bg-dark-800 p-6">
+        <p className="mb-4 text-sm text-dark-400">
+          {t('admin.partnerDetail.commissionDialog.description')}
+        </p>
+
+        <div className="mb-2 text-sm text-dark-500">
+          {t('admin.partnerDetail.commission.title')}: {currentCommission}%
+        </div>
+
+        <label className="mb-1 block text-sm font-medium text-dark-300">
+          {t('admin.partnerDetail.commissionDialog.label')}
+        </label>
+        <input
+          type="number"
+          min="1"
+          max="100"
+          value={commissionValue}
+          onChange={(e) => setCommissionValue(e.target.value)}
+          className="mb-6 w-full rounded-lg border border-dark-600 bg-dark-700 px-3 py-2 text-dark-100 outline-none focus:border-accent-500"
+        />
+
+        <div className="flex gap-3">
+          <button
+            onClick={() => navigate(`/admin/partners/${userId}`)}
+            className="flex-1 rounded-lg bg-dark-700 px-4 py-3 text-dark-300 transition-colors hover:bg-dark-600 hover:text-dark-100"
+          >
+            {t('common.cancel')}
+          </button>
+          <button
+            onClick={() => {
+              const val = Number(commissionValue);
+              if (val >= 1 && val <= 100) updateMutation.mutate(val);
+            }}
+            disabled={
+              updateMutation.isPending ||
+              !commissionValue ||
+              Number(commissionValue) < 1 ||
+              Number(commissionValue) > 100
+            }
+            className="flex-1 rounded-lg bg-accent-500 px-4 py-3 font-medium text-white transition-colors hover:bg-accent-600 disabled:opacity-50"
+          >
+            {updateMutation.isPending ? t('common.saving') : t('common.save')}
+          </button>
+        </div>
+
+        {updateMutation.isError && (
+          <div className="mt-4 rounded-lg bg-error-500/10 p-3 text-sm text-error-400">
+            {t('common.error')}
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}