File version history (list, download, restore) for Seafile files

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

public/index.html

@@ -55,6 +55,7 @@
 <script src="/webauthn.js"></script>
 <script src="/links.js"></script>
 <script src="/palette.js"></script>
+<script src="/file-history.js"></script>
 <script src="/music-extras.js"></script>
 <script src="/calendar-views.js"></script>
 <script src="/app.js"></script>