feat: add Company model and TrackedModel trait; update Park model to use Company as owner

app/Traits/TrackedModel.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace App\Traits;
+
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Auth;
+use Illuminate\Database\Eloquent\Model;
+
+trait TrackedModel {
+    protected static function bootTrackedModel() {
+        static::created(function (Model $model) {
+            static::logChange($model, 'created');
+        });
+
+        static::updated(function (Model $model) {
+            static::logChange($model, 'updated');
+        });
+
+        static::deleted(function (Model $model) {
+            static::logChange($model, 'deleted');
+        });
+    }
+
+    protected static function logChange(Model $model, string $action) {
+        $changes = $action === 'updated' 
+            ? [
+                'old' => $model->getOriginal(),
+                'new' => $model->getDirty()
+              ]
+            : $model->getAttributes();
+
+        DB::table('model_history')->insert([
+            'model_type' => get_class($model),
+            'model_id' => $model->getKey(),
+            'user_id' => Auth::check() ? Auth::id() : null,
+            'action' => $action,
+            'changes' => json_encode($changes),
+            'created_at' => now(),
+            'updated_at' => now(),
+        ]);
+    }
+}