fix(partner): 修复 PHP 8 下微小浮点数科学计数法导致 bcmul 参数格式错误的 500 异常

application/admin/controller/shopro/Dashboard.php

@@ -235,7 +235,7 @@ class Dashboard extends Common
             foreach ($allAgents as $ag) {
                 if ($filterCallback($ag)) {
                     $uCount++;
-                    $madowTotal = (float) bcadd((string)$madowTotal, (string)($ag->madow ?? 0), 8);
+                    $madowTotal = round($madowTotal + (float) ($ag->madow ?? 0), 8);
                     $uid = (int) $ag->user_id;
 
                     // 收益按角色类型精准归集