Migrate backend to Porto architecture and fix minor bugs

- Fully transitioned the backend to the Porto architectural pattern
- Improved code organization and maintainability
- Fixed minor bugs and inconsistencies

app/Containers/AdditionalEducation/Data/Resources/DirectionAdditionalEducationResource.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Containers\AdditionalEducation\Data\Resources;
+
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+class DirectionAdditionalEducationResource extends JsonResource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @return array<string, mixed>
+     */
+    public function toArray(Request $request): array
+    {
+        return [
+            'id' => $this->id,
+            'title' => $this->title,
+            'slug' => $this->slug,
+        ];
+    }
+}