```

feat(split): 新增分账接收方明细功能

新增 SplitOrderHelper 类用于同步分账接收方明细数据，包括接收方角色、
姓名、账户和金额等信息。优化管理后台分账订单列表页面，显示详细的
接收方信息和失败原因，提升分账流程的可视化和可追溯性。
```

addons/shopro/library/split/SplitOrderHelper.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace addons\shopro\library\split;
+
+use addons\shopro\model\split\SplitOrderReceiver;
+
+/**
+ * 分账订单明细写入（成功/失败均需落库，便于后台展示）
+ */
+class SplitOrderHelper
+{
+    public static function syncReceivers($splitOrderId, array $items, $replace = false)
+    {
+        if (!$splitOrderId || empty($items)) {
+            return;
+        }
+        if ($replace) {
+            SplitOrderReceiver::where('split_order_id', $splitOrderId)->delete();
+        }
+        $exists = SplitOrderReceiver::where('split_order_id', $splitOrderId)->count();
+        if ($exists > 0 && !$replace) {
+            return;
+        }
+        foreach ($items as $item) {
+            $amount = floatval($item['amount'] ?? 0);
+            if ($amount <= 0) {
+                continue;
+            }
+            SplitOrderReceiver::create([
+                'split_order_id' => $splitOrderId,
+                'receiver_id'    => intval($item['receiver_id'] ?? 0),
+                'role_type'      => $item['role_type'] ?? '',
+                'amount'         => round($amount, 2),
+                'description'    => $item['description'] ?? '',
+                'status'         => 0,
+            ]);
+        }
+    }
+}