fix of the json upload format

Web/app.py

@@ -11864,6 +11864,7 @@ def batch_upload_page():
 
 
 @app.route('/upload_csv_batch', methods=['POST'])
+@csrf.exempt
 def upload_csv_batch():
     """
     Route for batch adding new items to the inventory via CSV.
@@ -11903,7 +11904,7 @@ def upload_csv_batch():
 
     # 2. CSV Einlesen und Validieren
     try:
-        df = pd.read_csv(csv_file)
+        df = pd.read_csv(csv_file, sep=';')
     except Exception as e:
         app.logger.error(f"[Upload {upload_session_id}] Fehler beim Lesen der CSV: {str(e)}")
         return jsonify({"success": False, "message": f"Fehler beim Lesen der CSV: {str(e)}"}), 400