This update streamlines how the website shop calculates and displays product variants and prices. Customers should see more consistent pricing across currencies, tax positions, companies, and pricelists, with better performance in ecommerce flows.

Clean, factorize and optimize the code related to product variants display and price computation, especially the whole `combination_info` logic, which can now be moved to `website_sale` since the new product configurator used for backend doesn't rely on it anymore.

Enterprise PR: https://github.com/odoo/enterprise/pull/41308

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This update cleans up how product option and pricing details are calculated for online rental and subscription sales. It improves consistency across companies, currencies, taxes, and price lists while reducing unnecessary processing, helping customers see more accurate website prices.

Community PR: https://github.com/odoo/odoo/pull/121986