restore composer.json, add mysqli extension

app/Models/NotificationAvailable.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class NotificationAvailable extends Model
+{
+    /**
+     * @var array
+     */
+    protected $guarded = ['id'];
+
+    /**
+     * @var array
+     */
+    protected $casts = [
+        'phone' => 'integer',
+        'product_id' => 'integer'
+    ];
+
+    /**
+     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
+     */
+    public function product()
+    {
+        return $this->belongsTo(Product::class);
+    }
+}