Move sidebar and offline imports to lazy loading

frontend/js/auth.js

@@ -4,7 +4,6 @@ import { safeCreateIcons } from './utils.js';
 import { showToast, closeHeaderMenu } from './ui.js';
 import { t, getLocale, setLocale } from './i18n.js';
 import { showWelcome } from './viewer.js';
-import { loadVaults, loadTags } from './sidebar.js';
 
 // ── Global logout handler for header dropdown onclick ────────────────────
 // Defined at module top level so it's always available, even if
@@ -317,10 +316,15 @@ function initLoginForm() {
 
       // Load app data after successful login
       try {
+        // Dynamic imports to avoid circular dependency with sidebar.js
+        const { loadVaults, loadTags } = await import('./sidebar.js');
         await Promise.all([loadVaults(), loadTags()]);
         // Start SSE sync now that auth cookie is set (dynamic import to avoid circular dep)
         const { IndexUpdateManager } = await import('./sync.js');
         IndexUpdateManager.connect();
+        // Sync offline file index now that we're authenticated
+        const { syncFileIndexFromServer } = await import('./offline.js');
+        syncFileIndexFromServer();
         // Show dashboard
         showWelcome();
       } catch (err) {