This update restructures how inventory value changes are recorded, preparing Odoo to use dedicated stock valuation layers instead of older price history records. It also improves consistency when valuing purchase returns and makes required accounting setup clearer for users.

task-1875873

Inventory value reporting now uses valuation layer data so reported inventory values better reflect the current financial valuation. Subscription access is adjusted after product price history removal, and SEPA direct debit payment processing is fixed for invoices opened under the updated flow.

Use the valuation layers instead of move.value.
"Inventory value" should always contain the valuation right now.

task-1875873