This update reorganizes how barcode check digits are calculated, preparing Odoo for broader GS1-128 barcode support. It helps make barcode handling more consistent across inventory and point-of-sale workflows, with little immediate change for end users.

Description of the issue/feature this PR addresses:

Current behavior before PR:

Desired behavior after PR is merged:




--
I confirm I have signed the CLA and read the PR guidelines at www.odoo.com/submit-pr