refactor(online-status): consolidate updates and add cleanup command

app/Console/Commands/CleanupExpiredOnlineStatus.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace App\Console\Commands;
+
+use Illuminate\Console\Command;
+use App\Models\User;
+use Illuminate\Support\Facades\Log;
+
+class CleanupExpiredOnlineStatus extends Command
+{
+    /**
+     * The name and signature of the console command.
+     *
+     * @var string
+     */
+    protected $signature = 'cleanup:expired-online-status';
+
+    /**
+     * The console command description.
+     *
+     * @var string
+     */
+    protected $description = 'Reset online_count to 0 for users stale for 5+ minutes';
+
+    /**
+     * Execute the console command.
+     */
+    public function handle()
+    {
+        try {
+            $affected = 0;
+            User::query()
+                ->where('online_count', '>', 0)
+                ->where('last_online_at', '<', now()->subMinutes(5))
+                ->chunkById(1000, function ($users) use (&$affected) {
+                    if ($users->isEmpty()) {
+                        return;
+                    }
+                    $count = User::whereIn('id', $users->pluck('id'))
+                        ->update(['online_count' => 0]);
+                    $affected += $count;
+                }, 'id');
+
+            $this->info("Expired online status cleaned. Affected: {$affected}");
+            return self::SUCCESS;
+        } catch (\Throwable $e) {
+            Log::error('CleanupExpiredOnlineStatus failed', ['error' => $e->getMessage()]);
+            $this->error('Cleanup failed: ' . $e->getMessage());
+            return self::FAILURE;
+        }
+    }
+}