fix: Улучшения системы ценообразования комплектов

Исправлены 4 проблемы:
1. Расчёт цены первого товара - улучшена валидация в getProductPrice и calculateFinalPrice
2. Отображение actual_price в Select2 вместо обычной цены
3. Количество по умолчанию = 1 для новых форм компонентов
4. Auto-select текста при клике на поле количества для удобства редактирования

Изменённые файлы:
- products/forms.py: добавлен __init__ в KitItemForm для quantity.initial = 1
- products/templates/includes/select2-product-init.html: обновлена formatSelectResult
- products/templates/productkit_create.html: добавлен focus handler для auto-select
- products/templates/productkit_edit.html: добавлен focus handler для auto-select

🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>

test_order_signals.py

@@ -0,0 +1,116 @@
+import os
+import sys
+import django
+from decimal import Decimal
+from datetime import datetime, timedelta
+
+sys.path.insert(0, 'C:/Users/team_/Desktop/test_qwen/myproject')
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'myproject.settings')
+django.setup()
+
+from tenants.models import Client
+from django.db import connection
+from products.models import Product
+from inventory.models import Warehouse, Incoming, Reservation, Sale
+from orders.models import Order, OrderItem
+from customers.models import Customer
+
+grach = Client.objects.get(schema_name='grach')
+connection.set_tenant(grach)
+
+print("=== Order Signals Test ===\n")
+
+# Получаем товар и склад
+product = Product.objects.get(sku='FLOWER-001')
+warehouse = Warehouse.objects.get(name='Main Warehouse')
+
+# Создаем приходы
+print("Step 1: Creating incoming batches\n")
+
+Incoming.objects.create(
+    product=product,
+    warehouse=warehouse,
+    quantity=Decimal('50'),
+    cost_price=Decimal('100.00')
+)
+print("  Incoming: qty=50, cost=100.00")
+
+# Создаем клиента
+print("\nStep 2: Creating customer\n")
+
+customer, created = Customer.objects.get_or_create(
+    phone='+375291234567',
+    defaults={
+        'name': 'Test Customer',
+        'email': 'test@example.com'
+    }
+)
+print("  Customer: {} ({})".format(customer.name, customer.phone))
+
+# Создаем заказ
+print("\nStep 3: Creating order\n")
+
+try:
+    delivery_date = datetime.now() + timedelta(days=1)
+    
+    order = Order.objects.create(
+        order_number='ORD-001',
+        customer=customer,
+        status='pending',
+        delivery_type='courier',
+        delivery_date=delivery_date
+    )
+    print("  Order created: ORD-001, status=pending")
+    
+    # Создаем позицию заказа
+    order_item = OrderItem.objects.create(
+        order=order,
+        product=product,
+        quantity=Decimal('5'),
+        price=Decimal('200.00')
+    )
+    print("  OrderItem: 5 units")
+    
+    # Проверяем резервирование
+    print("\nStep 4: Checking reservations\n")
+    
+    reservations = Reservation.objects.filter(order_item=order_item, status='reserved')
+    print("Reservations count: {}".format(reservations.count()))
+    
+    if reservations.exists():
+        for res in reservations:
+            print("  PASS: Reservation created - qty={}, status={}".format(res.quantity, res.status))
+    else:
+        print("  FAIL: No reservations found!")
+    
+    # Меняем статус на in_delivery
+    print("\nStep 5: Changing order status to in_delivery\n")
+    
+    order.status = 'in_delivery'
+    order.save()
+    print("  Order status changed to in_delivery")
+    
+    # Проверяем продажу
+    print("\nStep 6: Checking sales\n")
+    
+    sales = Sale.objects.filter(order=order)
+    print("Sales count: {}".format(sales.count()))
+    
+    if sales.exists():
+        for sale in sales:
+            print("  PASS: Sale created - qty={}, price={}".format(sale.quantity, sale.sale_price))
+            print("       processed={}".format(sale.processed))
+    else:
+        print("  FAIL: No sales found!")
+    
+    # Проверяем обновленное резервирование
+    print("\nStep 7: Checking updated reservations\n")
+    
+    updated_reservations = Reservation.objects.filter(order_item=order_item)
+    for res in updated_reservations:
+        print("  Reservation status: {}".format(res.status))
+    
+except Exception as e:
+    print("ERROR: {}".format(str(e)))
+    import traceback
+    traceback.print_exc()