feat: add persistent mobile notifications

app/Notifications/NewFollowerNotification.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Notifications;
+
+use App\Models\User;
+use App\Services\MobileDeepLink;
+
+class NewFollowerNotification extends MobileNotification
+{
+    public function __construct(private readonly User $follower)
+    {
+        parent::__construct();
+    }
+
+    protected function category(): string
+    {
+        return self::CATEGORY_SOCIAL;
+    }
+
+    protected function payload(object $notifiable): array
+    {
+        return [
+            'type' => 'new_follower',
+            'title' => __('api.notifications.new_follower_title'),
+            'body' => __('api.notifications.new_follower_body', [
+                'name' => $this->follower->name ?: __('api.notifications.someone'),
+            ]),
+            'url' => MobileDeepLink::to("users/{$this->follower->getKey()}"),
+        ];
+    }
+}