fix: improve promotion tabs and referral layout

inc/helpers/aksrt-user-center.php

@@ -538,7 +538,7 @@ if (!function_exists('aksrt_get_user_center_render_context')) {
 			'orders_url'                => isset($tabs['tabs']['orders']) ? aksrt_get_user_center_tab_url('orders') : '',
 			'show_vip'                  => !empty($vip_settings['enabled']),
 			'show_credit_tabs'          => $show_credit_tabs,
-			'affiliate_enabled'         => $show_credit_tabs && !empty($affiliate_settings['enabled']),
+			'affiliate_enabled'         => !empty($affiliate_settings['enabled']),
 			'currency_name'             => $currency_name,
 			'credit_balance'            => (float) ($dashboard['credit_balance'] ?? 0.0),
 			'credits_enabled'           => $show_credit_tabs,

inc/helpers/user-center-renderers/sidebar-nav.php

@@ -13,6 +13,8 @@ $level_url = isset($dashboard_tabs['level'])
 $auth_url = isset($dashboard_tabs['auth']) ? aksrt_get_user_center_tab_url('auth') : '';
 $orders_available = isset($dashboard_tabs['orders']);
 $orders_url = $orders_available ? (string) ($orders_url ?? '') : '';
+$revenue_available = isset($dashboard_tabs['revenue']);
+$revenue_url = $revenue_available ? aksrt_get_user_center_tab_url('revenue') : '';
 
 $services = array_values(array_filter([
 	[
@@ -36,6 +38,13 @@ $services = array_values(array_filter([
 		'url'   => $orders_url,
 		'tab'   => 'orders',
 	],
+	[
+		'label' => __('推广收益', 'aksrt'),
+		'icon'  => 'chart-line',
+		'tone'  => 'revenue',
+		'url'   => $revenue_url,
+		'tab'   => 'revenue',
+	],
 ], static fn(array $item): bool => (string) $item['url'] !== ''));
 
 $settings = array_values(array_filter([