feat(core): Improve XML processing and error handling for PDF invoice attachments

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@fin.cx/xinvoice',
-  version: '1.1.2',
+  version: '1.2.0',
   description: 'A TypeScript module for creating, manipulating, and embedding XML data within PDF files specifically tailored for xinvoice packages.'
 }