Add bonus relation creation entrypoint

app/pages/bonus-system/index.vue

@@ -308,7 +308,17 @@ function compactProductTitle(product: ProductCard) {
         : activeTab === 'withdrawals'
           ? 'Номер выплаты, клиент или сумма'
           : 'Название или номинал'"
-    />
+    >
+      <template #controls>
+        <NuxtLink
+          v-if="activeTab === 'balances'"
+          to="/admin/bonuses/referrals/new"
+          class="btn btn-primary border-0"
+        >
+          Добавить
+        </NuxtLink>
+      </template>
+    </UiSectionSearchHero>
 
     <template v-if="activeTab === 'balances'">
       <div v-if="balancesQuery.loading.value || referralLinksQuery.loading.value || usersQuery.loading.value" class="manager-empty-state">