feat: display per-campaign stats on partner detail page

- Add registrations_count, referrals_count, earnings_kopeks to campaign type
- Show per-campaign stats grid (registrations, referrals, earnings) under each campaign card
- Use conditional coloring for zero earnings (neutral instead of green)

src/api/partners.ts

@@ -105,7 +105,15 @@ export interface AdminPartnerDetailResponse {
   earnings_week: number;
   earnings_month: number;
   conversion_to_paid: number;
-  campaigns: { id: number; name: string; start_parameter: string; is_active: boolean }[];
+  campaigns: {
+    id: number;
+    name: string;
+    start_parameter: string;
+    is_active: boolean;
+    registrations_count: number;
+    referrals_count: number;
+    earnings_kopeks: number;
+  }[];
   created_at: string;
 }
 

src/pages/AdminPartnerDetail.tsx

@@ -232,10 +232,11 @@ export default function AdminPartnerDetail() {
               {partner.campaigns.map((campaign) => (
                 <div
                   key={campaign.id}
-                  className={`flex items-center justify-between rounded-lg bg-dark-700/50 p-3 ${
+                  className={`rounded-lg bg-dark-700/50 p-3 ${
                     !campaign.is_active ? 'opacity-60' : ''
                   }`}
                 >
+                  <div className="flex items-center justify-between">
                     <div className="min-w-0 flex-1">
                       <div className="font-medium text-dark-100">{campaign.name}</div>
                       <div className="font-mono text-xs text-dark-500">
@@ -274,6 +275,35 @@ export default function AdminPartnerDetail() {
                       </button>
                     </div>
                   </div>
+                  <div className="mt-2 grid grid-cols-3 gap-2 border-t border-dark-600/50 pt-2">
+                    <div className="text-center">
+                      <div className="text-sm font-medium text-dark-200">
+                        {campaign.registrations_count}
+                      </div>
+                      <div className="text-[10px] text-dark-500">
+                        {t('admin.partnerDetail.campaigns.registrations', 'Регистрации')}
+                      </div>
+                    </div>
+                    <div className="text-center">
+                      <div className="text-sm font-medium text-dark-200">
+                        {campaign.referrals_count}
+                      </div>
+                      <div className="text-[10px] text-dark-500">
+                        {t('admin.partnerDetail.campaigns.referrals', 'Рефералы')}
+                      </div>
+                    </div>
+                    <div className="text-center">
+                      <div
+                        className={`text-sm font-medium ${campaign.earnings_kopeks > 0 ? 'text-success-400' : 'text-dark-400'}`}
+                      >
+                        {formatWithCurrency(campaign.earnings_kopeks / 100)}
+                      </div>
+                      <div className="text-[10px] text-dark-500">
+                        {t('admin.partnerDetail.campaigns.earnings', 'Доход')}
+                      </div>
+                    </div>
+                  </div>
+                </div>
               ))}
             </div>
           )}