PoS reuse pricelist

This module changes how the Point of Sale screen behaves when a cashier finishes one order and starts the next one.

Normally, each new order in the Point of Sale starts with the default pricelist configured for that point of sale. With this module installed, when an order is removed or closed and a new order is automatically created, the new order inherits the pricelist that was used on the order that was just removed.

• The behaviour is triggered when an order is removed from the order list, for example when it is abandoned or when a temporary order is replaced.
• If no other order remains in the list, a new order is created and it takes over the pricelist of the removed order.
• If other orders are still open, or the removal was not an abandon/temporary case, the pricelist is not copied.

This is useful in shops where the same customer or the same price conditions apply to several consecutive orders, so the cashier does not have to reselect the pricelist every time.

The module only touches the Point of Sale front-end behaviour; it adds no new menus, screens, database models or reports. It works together with the standard point_of_sale module and its order handling logic.