diff --git a/frontend/js/config.js b/frontend/js/config.js
index 85a54c2..93f8817 100644
--- a/frontend/js/config.js
+++ b/frontend/js/config.js
@@ -2,7 +2,7 @@
 import { api } from './auth.js';
 import { state } from './state.js';
 import { el, icon, openFile } from './viewer.js';
-import { syncVaultSelectors, setSelectedVaultContext, refreshSidebarForContext, loadVaults, loadTags, TagFilterService } from './sidebar.js';
+import { syncVaultSelectors, setSelectedVaultContext, refreshSidebarForContext, loadVaults, loadTags, TagFilterService, refreshSidebarTreePreservingState } from './sidebar.js';
 import {  escapeHtml, safeCreateIcons } from './utils.js';
 import { showToast, closeHeaderMenu, closeMobileSidebar } from './ui.js';
 
diff --git a/frontend/js/ui.js b/frontend/js/ui.js
index 4511a46..f828b90 100644
--- a/frontend/js/ui.js
+++ b/frontend/js/ui.js
@@ -3,7 +3,7 @@ import { api, AuthManager, initLoginForm } from './auth.js';
 import { state } from './state.js';
 import { openFile, showWelcome, renderFile, el } from './viewer.js';
 import { safeCreateIcons, getFileIcon, escapeHtml } from './utils.js';
-import { syncActiveFileTreeItem } from './sidebar.js';
+import { syncActiveFileTreeItem, refreshSidebarTreePreservingState } from './sidebar.js';
 import { GraphViewManager } from './graph.js';
 import { DashboardConflictsWidget } from './dashboard.js';
 // ---------------------------------------------------------------------------
diff --git a/frontend/js/viewer.js b/frontend/js/viewer.js
index 030e7c2..c8a2b52 100644
--- a/frontend/js/viewer.js
+++ b/frontend/js/viewer.js
@@ -3,7 +3,7 @@ import { api } from './auth.js';
 import { state } from './state.js';
 import { escapeHtml, safeCreateIcons, safeHighlight, getFileIcon, openEditor } from './utils.js';
 import { TabManager, closeMobileSidebar, ContextMenuManager, RightSidebarManager, showToast, buildFrontmatterCard } from './ui.js';
-import { syncActiveFileTreeItem, searchByTag, TagFilterService } from './sidebar.js';
+import { syncActiveFileTreeItem, searchByTag, TagFilterService, refreshSidebarTreePreservingState } from './sidebar.js';
 import { AutocompleteDropdown, performAdvancedSearch } from './search.js';
 import { initDashboardTabs } from './sync.js';
 import { DashboardStatsWidget, DashboardRecentWidget, DashboardBookmarkWidget, DashboardSharedWidget, DashboardConflictsWidget } from './dashboard.js';