restore composer.json, add mysqli extension

app/Providers/EventServiceProvider.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace App\Providers;
+
+use Illuminate\Auth\Events\Registered;
+use Illuminate\Auth\Listeners\SendEmailVerificationNotification;
+use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;
+use App\Models\Partner;
+use App\Models\Brand;
+use App\Observers\PartnerObserver;
+use App\Observers\BrandObServer;
+
+class EventServiceProvider extends ServiceProvider
+{
+    /**
+     * The event listener mappings for the application.
+     *
+     * @var array
+     */
+    protected $listen = [
+        Registered::class => [
+            SendEmailVerificationNotification::class,
+        ],
+    ];
+
+    /**
+     * Register any events for your application.
+     *
+     * @return void
+     */
+    public function boot()
+    {
+        parent::boot();
+        Partner::observe(PartnerObserver::class);
+        Brand::observe(BrandObServer::class);
+    }
+}