Purchase order line description

This module changes what appears in the description field of a purchase order line when a product is selected.

Normally Odoo builds that description from the product name plus other text. With this module installed, if the product has a purchase description set (the vendor-oriented description stored on the product), that text is used on its own as the line description.

• It applies to purchase order lines (purchase.order.line), so it is visible on the Purchase Orders screen when editing an order line.
• The change happens automatically when the product is chosen; users do not need to press any button.
• If the product has no purchase description, the standard behaviour is kept.
• A small screen-side adjustment makes the description field show the text as-is on purchase order lines, without the usual label formatting.

It does not add menus, reports, checks or scheduled actions. It only touches the purchase module and the way line descriptions are generated and displayed.