cahnges to the decryption

Web/app.py

@@ -3075,6 +3075,9 @@ def library_loans_admin():
 
     _ensure_audit_indexes_once()
 
+    # IMPORT HINZUGEFÜGT: Entschlüsselungs-Tool importieren
+    from modules.inventarsystem.data_protection import decrypt_text
+
     def fmt_dt(dt):
         try:
             return dt.strftime('%d.%m.%Y %H:%M') if dt else ''
@@ -3121,6 +3124,9 @@ def library_loans_admin():
             item_has_damage = bool(item_doc.get('HasDamage')) or condition_value == 'destroyed' or bool(item_doc.get('DamageReports'))
             damage_reports = item_doc.get('DamageReports', []) or []
 
+            raw_user = record.get('User', '')
+            decrypted_user = decrypt_text(raw_user) if raw_user else ''
+
             loan_entries.append({
                 'id': str(record.get('_id')),
                 'item_id': item_id,
@@ -3128,7 +3134,7 @@ def library_loans_admin():
                 'item_code': item_doc.get('Code_4', ''),
                 'item_author': item_doc.get('Author', ''),
                 'item_isbn': item_doc.get('ISBN', ''),
-                'user': record.get('User', ''),
+                'user': decrypted_user, 
                 'status': record.get('Status', ''),
                 'start': fmt_dt(record.get('Start')),
                 'end': fmt_dt(record.get('End')),
@@ -3181,7 +3187,6 @@ def library_loans_admin():
         if client:
             client.close()
 
-
 @app.route('/api/library_items')
 def api_library_items():
     """