sale_credit_note_reversal

Enable reversing customer credit notes so the resulting move becomes an invoice that stays linked to its sale order.

Key Features

account.move: Adds a Revert Credit Note button on posted customer credit notes to launch the reversal flow.
account.move: Forces reversals of customer credit notes to create customer invoices so sales order invoicing metrics stay consistent.
account.move.reversal: Renames the reversal reason and confirmation button to highlight that the process creates an invoice or credit note.