feat: add all Eloquent models with relationships

app/Models/ActivityLog.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class ActivityLog extends Model
+{
+    protected $fillable = ['user_id', 'action', 'model_type', 'model_id', 'description'];
+
+    public function user(): BelongsTo
+    {
+        return $this->belongsTo(User::class);
+    }
+}