feat(#17): add commands and jobs to poll, download and update firmware

feat(#17): add commands and jobs to poll, download and update firmware

feat(#17): update firmware modal

feat(#17): add tests

app/Models/Firmware.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Firmware extends Model
+{
+    use HasFactory;
+
+    protected $guarded = ['id'];
+
+    protected function casts(): array
+    {
+        return [
+            'latest' => 'boolean',
+        ];
+    }
+
+    public static function getLatest(): ?self
+    {
+        return self::where('latest', true)->first();
+    }
+}