fix(orders): enforce configured expiry

Apply the configured order lifetime to all checkout flows and close unpaid orders once their expiry is reached.

src/Payment/OrderRepositoryAdmin.php

@@ -125,6 +125,7 @@ trait OrderRepositoryAdmin {
     public function get_orders_admin(array $args = [], string $search = ''): array {
         global $wpdb;
 
+        $this->expire_pending_orders();
         [$where, $params] = $this->build_admin_order_filters($args, $search);
 
         $limit  = max(1, min(100, (int) ($args['limit'] ?? 20)));
@@ -147,6 +148,7 @@ trait OrderRepositoryAdmin {
     public function get_orders_count(array $args = [], string $search = ''): int {
         global $wpdb;
 
+        $this->expire_pending_orders();
         [$where, $params] = $this->build_admin_order_filters($args, $search);
 
         $where_sql = $where ? 'WHERE ' . implode(' AND ', $where) : '';