feat: Add tenant code to value changes; implement PurchaseController and related services for tenant-specific purchase management

app/Domains/Purchase/Resources/AdminApp/PurchaseModificationResource.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Domains\Purchase\Resources\AdminApp;
+
+use App\Domains\Logging\Models\ValueChange;
+use App\Domains\Purchase\Models\Purchase;
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+/** @mixin ValueChange */
+class PurchaseModificationResource extends JsonResource
+{
+    /** @return array<string, mixed> */
+    public function toArray(Request $request): array
+    {
+        /** @var Purchase|null $purchase */
+        $purchase = $this->whenLoaded('trackable');
+        $user = $this->whenLoaded('user');
+
+        return [
+            'id' => $this->id,
+            'purchase_id' => $this->trackable_id,
+            'attribute' => $this->attribute,
+            'old_value' => $this->old_value,
+            'new_value' => $this->new_value,
+            'changed_at' => $this->changed_at,
+            'actor_type' => $this->actor_type->value,
+            'purchase' => $purchase instanceof Purchase ? [
+                'id' => $purchase->id,
+                'customer_name' => $purchase->nombre_apellido,
+                'status' => $purchase->status,
+            ] : null,
+            'modified_by' => $user ? [
+                'id' => $user->id,
+                'name' => $user->nombre_apellido,
+                'email' => $user->email,
+            ] : null,
+        ];
+    }
+}