Merge branch 'feature/search-emoji-demo' into dev

Gemini: full emoji picker (desktop + mobile bottom sheet), global search
with SQLite FTS5 and Cmd+K palette (access-checked), demo mode resets the
database on every start.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

frontend/src/features/lists/SharedListsView.tsx

@@ -20,6 +20,7 @@ import { useMobileActions } from '../../context/MobileActionContext';
 interface SharedListsViewProps {
   onRefreshGlobal: () => void;
   currentUser?: User | null;
+  initialListId?: string | null;
 }
 
 export function parseListItemInput(rawText: string, defaultQty?: string): {
@@ -79,10 +80,16 @@ export function deduplicateItems(items: ListItem[]): ListItem[] {
   return result;
 }
 
-export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGlobal, currentUser }) => {
+export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGlobal, currentUser, initialListId }) => {
   const { setGroups, setPrimaryAction } = useMobileActions();
   const [lists, setLists] = useState<SharedList[]>([]);
-  const [activeListId, setActiveListId] = useState<string>('');
+  const [activeListId, setActiveListId] = useState<string>(initialListId || '');
+
+  useEffect(() => {
+    if (initialListId) {
+      setActiveListId(initialListId);
+    }
+  }, [initialListId]);
 
   const [newItemText, setNewItemText] = useState('');
   const [newItemQty, setNewItemQty] = useState('');
@@ -128,7 +135,9 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
         items: deduplicateItems(l.items || []),
       }));
       setLists(deduplicated);
-      if (deduplicated.length > 0 && (!activeListId || !deduplicated.some((l) => l.id === activeListId))) {
+      if (initialListId && deduplicated.some((l) => l.id === initialListId)) {
+        setActiveListId(initialListId);
+      } else if (deduplicated.length > 0 && (!activeListId || !deduplicated.some((l) => l.id === activeListId))) {
         setActiveListId(deduplicated[0].id);
       }
     } catch {