Add full portal expansion: 2FA, change password, history, announcements, recording guidelines, Seafile link, draft saving, file validation; v2.0.17

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

package.json

@@ -1,7 +1,7 @@
 {
   "name": "siteforge",
   "private": true,
-  "version": "2.0.16",
+  "version": "2.0.17",
   "type": "module",
   "scripts": {
     "dev": "vite",