feat(admin): clear closed orders and bulk content-pay edit

Add zibll-style clear/delete for closed orders and bulk/quick fields
for post pay_type, modo, prices, and virtual_sales.

inc/classes/class-aksrt-order-repository.php

@@ -648,6 +648,39 @@ class AKSRT_Order_Repository {
         return [$where, $params];
     }
 
+    /**
+     * Delete closed (cancelled/expired) orders older than $days days.
+     * Mirrors zibll ZibPay::clear_order(14).
+     *
+     * @return int Number of rows deleted.
+     */
+    public function clear_closed_orders(int $days = 14): int {
+        global $wpdb;
+
+        $days = max(1, min(3650, $days));
+        $table = $this->table();
+        $cutoff = gmdate('Y-m-d H:i:s', time() - ($days * DAY_IN_SECONDS));
+        // Prefer cancelled_at when set; fall back to created_at for older rows.
+        $sql = "DELETE FROM {$table}
+                WHERE status IN ('cancelled', 'expired')
+                  AND COALESCE(NULLIF(cancelled_at, ''), created_at) < %s";
+        $deleted = $wpdb->query($wpdb->prepare($sql, $cutoff));
+        return $deleted === false ? 0 : (int) $deleted;
+    }
+
+    /**
+     * Hard-delete a single order by order_number (admin hygiene).
+     */
+    public function delete_order(string $order_number): bool {
+        global $wpdb;
+        $order_number = sanitize_text_field($order_number);
+        if ($order_number === '') {
+            return false;
+        }
+        $ok = $wpdb->delete($this->table(), ['order_number' => $order_number], ['%s']);
+        return $ok !== false && $ok > 0;
+    }
+
     /**
      * 获取订单统计
      */