ladill-queue/app/Console/Commands/MarkDevicesOfflineCommand.php

<?php

namespace App\Console\Commands;

use App\Services\Qms\DeviceService;
use Illuminate\Console\Command;

class MarkDevicesOfflineCommand extends Command
{
    protected $signature = 'qms:mark-devices-offline';

    protected $description = 'Mark queue devices offline when heartbeat is stale';

    public function handle(DeviceService $devices): int
    {
        $count = $devices->markStaleOffline();

        $this->info("Marked {$count} device(s) offline.");

        return self::SUCCESS;
    }
}