feat: 完善分销中心与团队明细接口，增强商户与帖子交互细节

application/api/controller/AdminMember.php

@@ -41,7 +41,7 @@ class AdminMember extends V1
         $list = [];
         foreach ($rows as $row) {
             $isMember = (int)$row['is_member'] === 1
-                && (!$row['member_expiretime'] || (int)$row['member_expiretime'] > $now);
+                && !empty($row['member_expiretime']) && (int)$row['member_expiretime'] > $now;
             $list[] = [
                 'id'         => (int)$row['id'],
                 'nickname'   => (string)$row['nickname'],