[Invoices] Improved currency conversion handling during invoice editing, including more stable switching between invoice-level and item-level conversion and better support for mixed invoices where only selected items use conversion
[Invoices] Extended the retention period for imported external purchase invoices from 30 to 60 days, giving users more time to review and save documents before automatic cleanup
[Invoices] Added a new period filter option by payment term
[Invoices] Added purchase invoice counterparty history to the customer picker in invoice create and edit forms, so users can select counterparties that already exist on earlier purchase invoices even if they are not saved in the counterparty database.
[Dispo-Plan] Fixed driver filtering so permitted countries now work correctly together with other driver category filters such as ADR and AVSEC
[Counterparties] Improved VAT lookup handling:
- VAT numbers with formatting characters are now recognized correctly
- Valid VIES results without returned company details no longer show a misleading company-not-found error