<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
class Event extends Model {
 public $timestamps = false;
 protected $fillable = ['device_id','event_type','severity','payload','occurred_at'];
 protected $casts = ['payload'=>'array','occurred_at'=>'datetime'];
 public function device(): BelongsTo { return $this->belongsTo(Device::class); }
}