complete new audit system

backend/src/services/backup.service.ts

@@ -4,15 +4,13 @@
  * Ermöglicht Backup und Restore der Datenbank und Uploads über die Web-Oberfläche.
  */
 
-import { PrismaClient } from '@prisma/client';
+import prisma from '../lib/prisma.js';
 import * as fs from 'fs';
 import * as path from 'path';
 import archiver from 'archiver';
 import AdmZip from 'adm-zip';
 import bcrypt from 'bcryptjs';
 
-const prisma = new PrismaClient();
-
 // Verzeichnisse
 const BACKUPS_DIR = path.join(__dirname, '../../prisma/backups');
 const UPLOADS_DIR = path.join(process.cwd(), 'uploads');