Product weekly sales hint on sales recommendation wizard

This module adds two extra columns to the product recommendation wizard used when preparing a sales order.

• "Weekly Sold" shows a formatted summary of how much of each product was sold and delivered per week, calculated for the customer's company (commercial entity) on the order.
• "Qty. On Hand" shows the current stock available for each product.

Both values appear in the list of recommended lines, in the detailed line form, and in the kanban card view of the wizard, where they are labelled "Available" and "Weekly sales". The weekly sales figure is computed automatically when the wizard loads and is not stored, so it always reflects current data. Service-type products are skipped and show no weekly sales value.

The module installs automatically when both the weekly sales reporting and the sales recommendation wizard modules are present. It does not add menus of its own; it enriches the existing recommendation screen reached from a sales order.