BREAKING CHANGE(XInvoice): Refactor XInvoice API for XML handling and PDF export by replacing deprecated methods (addXmlString and getParsedXmlData) with fromXml and loadXml, and by introducing a new ExportFormat type for type-safe export. Update tests accordingly.

ts/interfaces.ts

@@ -45,6 +45,13 @@ export enum InvoiceFormat {
   FATTURAPA = 'fatturapa' // FatturaPA (Italian e-invoice format)
 }
 
+/**
+ * Formats supported for export operations
+ * This is a subset of InvoiceFormat that only includes formats
+ * that can be generated and embedded in PDFs
+ */
+export type ExportFormat = 'facturx' | 'zugferd' | 'xrechnung' | 'ubl';
+
 /**
  * Describes a validation level for invoice validation
  */