```

feat(shopro): 完善汇付分账功能的错误处理和调试信息

- 添加主商户号验证逻辑，当platform_huifu_id为空时使用插件主商户
- 改进分账剩余金额显示逻辑，区分主商户留存和平台分账情况
- 更新错误提示信息，明确2200002错误的处理方式
- 新增acct_infos预览功能，便于调试分账配置
- 优化分账服务中的商户号处理，避免主商户重复分账

fix(shopro_huifu): 修复汇付分账配置错误提示和分账逻辑

- 更新22000002错误排查说明，简化表述并突出关键点
- 修复分账服务中构建分账信息的逻辑，确保不包含收款主商户
- 添加日志记录，当跳过分账方为自己时进行警告
- 优化剩余金额处理，当日志平台即收款主商户时剩余款项保留在主商户
- 增强分账验证，当无有效分账接收方时抛出异常
```

addons/shopro/tests/split_commission_verify.php

@@ -428,13 +428,18 @@ function diagnoseOrderSplitBlockers($orderId)
             );
         }
         $payFee = number_format((float) $order['pay_fee'], 2, '.', '');
+        $payHuifuId = trim((string) Db::name('shopro_huifu_config')->where('name', 'huifu_id')->value('value'));
         $platformId = trim((string) ($sc['platform_huifu_id'] ?? ''));
+        if ($platformId === '') {
+            $platformId = $payHuifuId;
+        }
         $remain = bcsub($payFee, number_format($sum, 2, '.', ''), 2);
         if (bccomp($remain, '0.00', 2) > 0) {
-            $reasons[] = '  → platform 剩余 huifu_id=' . ($platformId !== '' ? $platformId : '(未配 platform_huifu_id，将用插件主商户)') . ' 金额=' . $remain;
-        }
-        if ($platformId === '') {
-            $reasons[] = '  ⚠ platform_huifu_id 为空，请与汇付收款主商户 huifu_id 一致，否则易 22000002';
+            if ($platformId !== '' && $platformId === $payHuifuId) {
+                $reasons[] = '  → 主商户留存（不写 acct_infos）huifu_id=' . $payHuifuId . ' 金额=' . $remain;
+            } else {
+                $reasons[] = '  → 平台分账 huifu_id=' . $platformId . ' 金额=' . $remain;
+            }
         }
     }
 
@@ -488,7 +493,7 @@ function printTrySplitChannelHints(array $order)
     if ($latest && intval($latest['status']) === 4 && !empty($latest['wx_result'])) {
         $raw = is_string($latest['wx_result']) ? $latest['wx_result'] : json_encode($latest['wx_result'], JSON_UNESCAPED_UNICODE);
         if (strpos($raw, '22000002') !== false || strpos($raw, '分账配置') !== false) {
-            echo "\n【最近失败】id={$latest['id']} → 22000002 分账配置有误：控台绑定上述 huifu_id 后再重试\n";
+            echo "\n【最近失败】id={$latest['id']} → 22000002：若已部署「主商户不写 acct_infos」仍失败，请在控台绑定子商户分账关系\n";
         } elseif (strpos($raw, 'FREEZE') !== false) {
             echo "\n【最近失败】id={$latest['id']} → 资金冻结，见上查单\n";
         }
@@ -498,6 +503,44 @@ function printTrySplitChannelHints(array $order)
     if ($payHuifuId) {
         echo "  · 插件支付 huifu_id={$payHuifuId}（应与 platform_huifu_id / 控台主商户一致）\n";
     }
+
+    printHuifuAcctInfosPreview($order);
+}
+
+function printHuifuAcctInfosPreview(array $order)
+{
+    if (!class_exists('\\addons\\shopro\\library\\split\\SplitCalculator')
+        || !class_exists('\\addons\\shopro_huifu\\library\\HuifuSplitService')) {
+        return;
+    }
+    $items = (new \addons\shopro\library\split\SplitCalculator())->calculate($order['id']);
+    if (empty($items)) {
+        return;
+    }
+    $service = new \addons\shopro_huifu\library\HuifuSplitService();
+    $payFee = number_format((float) $order['pay_fee'], 2, '.', '');
+    $confirmBase = $service->previewConfirmPayFee($order['order_sn'], $payFee);
+    $ref = new \ReflectionClass($service);
+    $method = $ref->getMethod('buildAcctInfos');
+    $method->setAccessible(true);
+    try {
+        $acctInfos = $method->invoke($service, $items, $confirmBase);
+    } catch (\Throwable $e) {
+        echo "\n【acct_infos 预览】组装失败: " . $e->getMessage() . "\n";
+        return;
+    }
+    echo "\n【将提交汇付 acct_infos】confirm_base={$confirmBase}\n";
+    foreach ($acctInfos as $row) {
+        echo '  · huifu_id=' . ($row['huifu_id'] ?? '-') . ' div_amt=' . ($row['div_amt'] ?? '-') . "\n";
+    }
+    $splitSum = '0.00';
+    foreach ($acctInfos as $row) {
+        $splitSum = bcadd($splitSum, number_format((float) ($row['div_amt'] ?? 0), 2, '.', ''), 2);
+    }
+    $stay = bcsub($confirmBase, $splitSum, 2);
+    if (bccomp($stay, '0.00', 2) > 0) {
+        echo "  · （其余 {$stay} 元留在收款主商户，不写入分账串）\n";
+    }
 }
 
 function diagnoseMissingSplitOrders($limit)