Account Tax Group Widget Base Amount

This module changes how the tax totals widget looks on accounting documents. In Odoo, the tax totals widget is the small summary block that lists each tax group with its tax amount. Before this module, that block only showed the tax group name and the tax amount.

With this module installed, the label of each tax group in the widget is extended to also display the base amount, formatted as a monetary value. For example, instead of just showing a tax group name, the widget shows the group name followed by "on" and the base amount the tax was computed from.

The change is purely a display change in the backend web interface. It applies wherever the tax group widget is used, which in practice means the tax totals area of invoices and receipts. No new menus, screens, buttons, reports, or database fields are added by this module.

No business rules, checks, default values, restrictions, emails, or scheduled jobs are introduced. The module only depends on the standard Accounting application and extends its existing tax group component template. Because the change is visual, existing data and calculations are not affected.