Sale Loyalty Product Exclude

This module adds a simple switch on the product form to keep certain products out of loyalty programs.

• On the product form, in the Sales tab, a new "Loyalty" group contains the checkbox "loyalty_exclude". When ticked, the product is excluded from loyalty programs.

• When a product is excluded, its order lines are treated as having no effect on the minimum amount required to reach a loyalty threshold. This means those lines are ignored when Odoo checks whether the customer has spent enough to earn a reward.

• The module also filters the product selection fields used when setting up loyalty rules and rewards: products marked as excluded no longer appear in the product list of a loyalty rule or in the discounted product list of a reward.

It touches the product form, the sale order calculation of threshold lines, and the loyalty rule and reward configuration screens. No new menus or reports are added.