DB Import und Export sowie Backup und kleinere Fehlerbeseitigung

public/Test.html

@@ -77,6 +77,15 @@
       <button class="secondary" onclick="exportPDF()">PDF Export</button>
       <button class="secondary" onclick="startShowMode()">Show Mode</button>
     </div>
+
+    <hr class="menu-divider">
+
+    <div class="menu-section">
+      <div class="menu-label">Backup</div>
+      <button class="secondary" onclick="exportCSV()">CSV Export</button>
+      <button class="secondary" onclick="downloadBackup()">DB Backup</button>
+      <button class="secondary" onclick="importDb()">DB Import</button>
+    </div>
   </div>
 </div>
 
@@ -238,6 +247,9 @@
 <script src="/js/showmode.js?v=5"></script>
 <script src="/js/tabs-auth.js?v=5"></script>
 <script src="/js/pdf.js?v=5"></script>
+<script src="/js/csv.js?v=1"></script>
+<script src="/js/backup.js?v=1"></script>
+<script src="/js/import.js?v=1"></script>
 <script src="/js/init.js?v=5"></script>
 </body>
 </html>