refactor(stock): implement expiration for stock reservations and add configuration

tests/Feature/Cart/CartControllerTest.php

@@ -80,6 +80,30 @@ class CartControllerTest extends TestCase
         ]);
     }
 
+    public function test_it_sets_the_configured_expiration_when_creating_a_stock_reservation(): void
+    {
+        config()->set('catalog.stock_reservation_expiration_minutes', 45);
+        $now = now()->startOfSecond();
+        $this->travelTo($now);
+
+        $tenant = $this->createTenant('acme');
+        $item = $this->createDirectItem($tenant, 10, '49.90');
+
+        $this->postJson('/api/tenants/acme/cart/items', [
+            'catalog_item_id' => $item->id,
+            'cantidad' => 2,
+        ])->assertOk();
+
+        $this->assertDatabaseHas('stock_reservations', [
+            'inventory_id' => $item->inventory_id,
+            'quantity' => 2,
+            'status' => 'active',
+            'expires_at' => $now->copy()->addMinutes(45)->toDateTimeString(),
+        ]);
+
+        $this->travelBack();
+    }
+
     public function test_it_filters_item_images_when_the_tenant_disables_them(): void
     {
         $tenant = $this->createTenant('acme');