Security fixes: swarm signature verification and error handling

src/app/settings/layout.tsx

@@ -1,13 +1,13 @@
 'use client';
 
 import { useAuth } from '@/lib/contexts/AuthContext';
-import { IdentityLockScreen } from '@/components/IdentityLockScreen';
 import { Loader2 } from 'lucide-react';
 
 export default function SettingsLayout({ children }: { children: React.ReactNode }) {
-    const { isIdentityUnlocked, loading } = useAuth();
+    const { isIdentityUnlocked, isRestoring, loading } = useAuth();
 
-    if (loading) {
+    // Show loading while restoring or initial load
+    if (loading || isRestoring) {
         return (
             <div style={{
                 minHeight: '60vh',
@@ -21,12 +21,33 @@ export default function SettingsLayout({ children }: { children: React.ReactNode
         );
     }
 
+    // If not unlocked after restoration, user needs to re-login
+    // (This is rare - only happens if browser was closed or session expired)
     if (!isIdentityUnlocked) {
         return (
-            <IdentityLockScreen
-                title="Settings Locked"
-                description="To view or change your settings, you must unlock your identity. Your private keys are required to sign any changes you make."
-            />
+            <div style={{
+                minHeight: '60vh',
+                display: 'flex',
+                flexDirection: 'column',
+                alignItems: 'center',
+                justifyContent: 'center',
+                gap: '16px',
+                padding: '24px',
+                textAlign: 'center'
+            }}>
+                <h2 style={{ fontSize: '20px', fontWeight: 600 }}>
+                    Session Expired
+                </h2>
+                <p style={{ color: 'var(--foreground-secondary)', maxWidth: '400px' }}>
+                    Your session has expired. Please log out and log back in to access settings.
+                </p>
+                <button
+                    onClick={() => window.location.href = '/login'}
+                    className="btn btn-primary"
+                >
+                    Go to Login
+                </button>
+            </div>
         );
     }