fix(mining-admin-web): 修复用户列表页面类型错误

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/mining-admin-web/src/app/(dashboard)/users/page.tsx

@@ -174,7 +174,7 @@ export default function UsersPage() {
                       </TableCell>
                       {/* 推荐人 */}
                       <TableCell className="font-mono text-sm text-muted-foreground">
-                        {user.referrerId || user.referrerAccountSequence || '-'}
+                        {user.referrerId || '-'}
                       </TableCell>
                       {/* 注册时间 */}
                       <TableCell className="text-sm text-muted-foreground">