feat(ui): open list items counter on Listen, none on Workspace

New stat listItemsOpenCount: unchecked items in all lists the user sees
(own, shared directly or through a group), shown as accent counter on
Listen in the header and the mobile bottom bar. Workspace loses its
counter. Stats refresh on list events and after deleting an item.

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

internal/storage/system.go

@@ -18,15 +18,18 @@ func (s *Store) GetDashboardStats(userID string) (*domain.DashboardStats, error)
 	_ = s.db.QueryRow(`SELECT COUNT(*) FROM thoughts WHERE `+taskScope+` AND is_completed = 1`, userID, userID, userID, userID).Scan(&st.TasksDoneCount)
 	_ = s.db.QueryRow(`SELECT COUNT(*) FROM documents WHERE user_id = ? AND is_archived = 0`, userID).Scan(&st.DocsCount)
 	_ = s.db.QueryRow(`SELECT COUNT(*) FROM thoughts WHERE user_id = ? AND status = 'discarded'`, userID).Scan(&st.DiscardedCount)
-	_ = s.db.QueryRow(`
-		SELECT COUNT(DISTINCT l.id) 
-		FROM lists l 
+	// Own lists and lists shared with the user directly or through a group
+	visibleLists := `
+		SELECT l.id
+		FROM lists l
 		LEFT JOIN list_shares ls ON ls.list_id = l.id AND (
 		    (ls.target_type = 'user' AND ls.target_id = ?)
 		    OR (ls.target_type = 'team' AND ls.target_id IN (SELECT team_id FROM team_members WHERE user_id = ?))
 		)
-		WHERE l.user_id = ? OR ls.id IS NOT NULL`,
-		userID, userID, userID).Scan(&st.ListsCount)
+		WHERE l.user_id = ? OR ls.id IS NOT NULL`
+	_ = s.db.QueryRow(`SELECT COUNT(DISTINCT id) FROM (`+visibleLists+`)`, userID, userID, userID).Scan(&st.ListsCount)
+	_ = s.db.QueryRow(`SELECT COUNT(*) FROM list_items WHERE is_completed = 0 AND list_id IN (`+visibleLists+`)`,
+		userID, userID, userID).Scan(&st.ListItemsOpenCount)
 
 	// Count open (uncompleted) To-Dos across accessible workspace documents (owned or shared)
 	docRows, err := s.db.Query(`