AES-256 encryption option for project files, progress on importing KiCad symbols

docs/schema.html

@@ -1,9 +1,3 @@
-<!--
-  ~ Copyright (c) 2025-2026 Taras Greben
-  ~ SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Commercial-pcb-retrace
-  ~ See LICENSE file for details.
--->
-
 <!DOCTYPE html>
 <html lang="en">
 <head>
@@ -14,7 +8,7 @@
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>Schematic ReTrace</title>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/jszip/3.10.1/jszip.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/@zip.js/zip.js@2.8.26/dist/zip.min.js"></script>
 <script src="db-core.js"></script>
 <style>
 	@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Rajdhani:wght@400;500;600;700&family=Space+Mono:wght@400;700&display=swap');