fix: resolve TS errors from missing createAddressBook in demo client and client ref in thread view

components/email/thread-conversation-view.tsx

@@ -88,6 +88,7 @@ export function ThreadConversationView({
   const trustedSendersAddressBook = useSettingsStore((state) => state.trustedSendersAddressBook);
   const isTrustedAddressBookSender = useContactStore((state) => state.isTrustedAddressBookSender);
   const addToTrustedSendersBook = useContactStore((state) => state.addToTrustedSendersBook);
+  const { client } = useAuthStore();
 
   // Track which emails are expanded (most recent by default)
   const [expandedIds, setExpandedIds] = useState<Set<string>>(new Set());