Add follow system, activity feed, notifications, sitemap, caching, Scout search

app/Services/ActivityService.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace App\Services;
+
+use App\Models\Activity;
+use App\Models\User;
+use Illuminate\Database\Eloquent\Model;
+
+class ActivityService
+{
+    public static function log(User $user, string $type, Model $subject, array $data = []): void
+    {
+        Activity::log($user->id, $type, $subject, $data);
+    }
+}