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

app/Domains/Purchase/Controllers/AdminApp/PurchaseController.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Domains\Purchase\Controllers\AdminApp;
+
+use App\Domains\Purchase\Resources\AdminApp\PurchaseModificationResource;
+use App\Domains\Purchase\Resources\PurchaseResource;
+use App\Domains\Purchase\Services\AdminAppPurchaseService;
+use App\Http\Controllers\Controller;
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\AnonymousResourceCollection;
+
+class PurchaseController extends Controller
+{
+    public function __construct(protected AdminAppPurchaseService $purchaseService) {}
+
+    public function index(Request $request): AnonymousResourceCollection
+    {
+        $tenant = $request->user()->tenant()->firstOrFail();
+
+        return PurchaseResource::collection(
+            $this->purchaseService->purchases($tenant)
+        )->additional([
+            'confirmed_sales_total' => $this->purchaseService->confirmedSalesTotal($tenant),
+        ]);
+    }
+
+    public function modifications(Request $request): AnonymousResourceCollection
+    {
+        return PurchaseModificationResource::collection(
+            $this->purchaseService->modifications(
+                $request->user()->tenant()->firstOrFail()
+            )
+        );
+    }
+}