```

feat(shopro_huifu): 完善汇付分账服务功能

- 实现分账确认金额解析逻辑，确保与汇付待确认金额一致
- 添加分账项目缩放调整功能，防止分配总额超出限制
- 优化分账金额计算精度处理，使用BC数学函数保证准确性
- 改进后台重试接口错误提示，提供详细的失败原因信息
```

application/admin/controller/shopro/split/Order.php

@@ -31,8 +31,36 @@ class Order extends Base
     public function retry($ids = null)
     {
         $id = $ids ?: $this->request->post('id');
+        $row = $this->model->get($id);
         $result = (new SplitExecutor())->retry($id);
-        $result ? $this->success('重试成功') : $this->error('重试失败，请查看记录');
+        if ($result) {
+            $this->success('重试成功');
+        }
+        $hint = '';
+        if ($row) {
+            $latest = $this->model->where('order_id', $row['order_id'])
+                ->where('channel', $row['channel'] ?? 'wechat')
+                ->order('id', 'desc')
+                ->find();
+            if ($latest && !empty($latest['wx_result'])) {
+                $raw = is_string($latest['wx_result']) ? $latest['wx_result'] : json_encode($latest['wx_result'], JSON_UNESCAPED_UNICODE);
+                $decoded = json_decode($raw, true);
+                if (is_array($decoded)) {
+                    $parts = array_filter([
+                        $decoded['resp_desc'] ?? '',
+                        $decoded['resp_code'] ?? '',
+                        $decoded['bank_message'] ?? '',
+                    ]);
+                    $hint = $parts ? ('：' . implode(' ', $parts)) : ('：' . mb_substr($raw, 0, 300));
+                } else {
+                    $hint = '：' . mb_substr($raw, 0, 300);
+                }
+            }
+        }
+        if ($hint === '') {
+            $hint = '：常见为分账明细为空(佣金/规则未匹配到汇付接收方)、汇付未开通分账/延时分账权限、接收方未绑定分账关系';
+        }
+        $this->error('重试失败，请查看分账记录 wx_result' . $hint);
     }
 
     public function query($ids = null)