Account Invoices - UoM Column

This module changes the layout of the standard invoice report (the document customers receive). Instead of showing the unit of measure squeezed inside the quantity cell, the report now has two distinct columns: a narrower "Qty" column and a new "UoM" column right after it.

• The header of the quantity column is shortened to "Qty".
• A new "UoM" header is inserted after it.
• In each invoice line, the unit of measure value is removed from the quantity cell and displayed in the new column instead.

The new column is only visible to users who have the unit of measure feature enabled (the standard Odoo unit of measure group), so companies that do not use units of measure see no change. The module only touches the invoice report template account.report_invoice_document; it adds no new menus, screens, buttons, models, business rules, checks or automated actions. It does not change how invoices are created, computed or posted — only how they look when printed or previewed.