fix of the json upload format

Web/app.py

@@ -18,7 +18,6 @@ Features:
 """
 
 from flask import Flask, render_template, request, redirect, url_for, session, flash, send_from_directory, get_flashed_messages, jsonify, Response, make_response, send_file, abort
-from flask_wtf import csrf
 from werkzeug.utils import secure_filename
 from werkzeug.middleware.proxy_fix import ProxyFix
 from werkzeug.exceptions import HTTPException
@@ -11866,7 +11865,6 @@ 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.
@@ -11906,7 +11904,7 @@ def upload_csv_batch():
 
     # 2. CSV Einlesen und Validieren
     try:
-        df = pd.read_csv(csv_file, sep=';')
+        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