feat: improve AI Chat UX, add notebook summary, and fix shared/reminders routing

memento-note/app/(main)/page.tsx

@@ -25,6 +25,7 @@ export default async function HomePage() {
         notesViewMode,
         noteHistory: settings?.noteHistory === true,
         noteHistoryMode: (settings?.noteHistoryMode ?? 'manual') as 'manual' | 'auto',
+        aiAssistantEnabled: settings?.paragraphRefactor !== false,
       }}
     />
   )