feat(core): improve in-memory validation, FatturaPA detection coverage, and published type compatibility

ts/formats/converters/xml-to-einvoice.converter.ts

@@ -6,17 +6,16 @@
 import * as plugins from '../../plugins.js';
 import type { EInvoice } from '../../einvoice.js';
 import type { TAccountingDocItem } from '@tsclass/tsclass/dist_ts/finance/index.js';
-import { DOMParser } from '@xmldom/xmldom';
 
 /**
  * Converter for XML formats to EInvoice - simplified version
  * This is a basic converter that extracts essential fields for testing
  */
 export class XMLToEInvoiceConverter {
-  private parser: DOMParser;
+  private parser: InstanceType<typeof plugins.DOMParser>;
   
   constructor() {
-    this.parser = new DOMParser();
+    this.parser = new plugins.DOMParser();
   }
   
   /**
@@ -116,7 +115,7 @@ export class XMLToEInvoiceConverter {
       console.warn('Error parsing XML:', error);
     }
     
-    return mockInvoice as EInvoice;
+    return mockInvoice as unknown as EInvoice;
   }
   
   /**
@@ -139,4 +138,4 @@ export class XMLToEInvoiceConverter {
     
     return null;
   }
-}
+}