feat: 實作機台日誌核心功能與 IoT 高併發處理架構

app/Models/Machine/Machine.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Models\Machine;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Machine extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'name',
+        'location',
+        'status',
+        'temperature',
+        'firmware_version',
+        'last_heartbeat_at',
+    ];
+
+    protected $casts = [
+        'last_heartbeat_at' => 'datetime',
+    ];
+
+    public function logs()
+    {
+        return $this->hasMany(MachineLog::class);
+    }
+
+}