fix(AlibabaAgent): 修复退款退货原因列表格式化逻辑

- 简化了数据解析逻辑，直接从 result.result.reasons 路径获取数据
- 修正了字段映射，将 reasonId 和 reasonText 改为 id 和 name
- 移除了冗余的嵌套结构处理和不必要的 refundList 包装
- 更新了返回数据结构，只返回实际的原因列表数组
- 添加了详细的返回数据结构注释说明

app/services/ThirdParty/AlibabaAgent/OrderService.php

@@ -583,39 +583,33 @@ class OrderService extends AlibabaAgentBaseService
     /**
      * 格式化退款退货原因列表返回结果
      *
+     * 实际返回数据结构:
+     * {
+     *   "result": {
+     *     "result": {
+     *       "reasons": [
+     *         {"id": 20006, "name": "不想买了", "needVoucher": false, "noRefundCarriage": false, "tip": ""}
+     *       ]
+     *     },
+     *     "success": true
+     *   }
+     * }
+     *
      * @param array $result API原始返回数据
      * @return array
      */
     protected function formatRefundReasonListResult(array $result): array
     {
-        $success = $result['success'] ?? false;
-        $refundList = [];
-
-        if (isset($result['result']) && is_array($result['result'])) {
-            foreach ($result['result'] as $item) {
-                $reasons = [];
-                if (isset($item['refundReasonList']) && is_array($item['refundReasonList'])) {
-                    foreach ($item['refundReasonList'] as $reason) {
-                        $reasons[] = [
-                            'reasonId'   => $reason['reasonId'] ?? '',
-                            'reasonText' => $reason['reasonText'] ?? '',
-                        ];
-                    }
-                }
-
-                $refundList[] = [
-                    'refundId'         => $item['refundId'] ?? '',
-                    'refundType'       => $item['refundType'] ?? '',
-                    'refundStatus'     => $item['refundStatus'] ?? '',
-                    'refundReasonList' => $reasons,
+        $reasons = [];
+        if (isset($result['result']['result']['reasons']) && is_array($result['result']['result']['reasons'])) {
+            foreach ($result['result']['result']['reasons'] as $reason) {
+                $reasons[] = [
+                    'id'   => $reason['id'] ?? '',
+                    'name' => $reason['name'] ?? '',
                 ];
             }
         }
 
-        return [
-            'success'    => $success,
-            'refundList' => $refundList,
-            'rawData'    => $result,
-        ];
+        return $reasons;
     }
 }