fix: address code review feedback - emptyState icon support and Zod schema fix

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Copilot

packages/plugin-list/src/ListView.tsx

@@ -9,7 +9,7 @@
 import * as React from 'react';
 import { cn, Button, Input, Popover, PopoverContent, PopoverTrigger, FilterBuilder, SortBuilder, NavigationOverlay } from '@object-ui/components';
 import type { SortItem } from '@object-ui/components';
-import { Search, SlidersHorizontal, ArrowUpDown, X, EyeOff, Group, Paintbrush, Ruler, Inbox } from 'lucide-react';
+import { Search, SlidersHorizontal, ArrowUpDown, X, EyeOff, Group, Paintbrush, Ruler, Inbox, icons, type LucideIcon } from 'lucide-react';
 import type { FilterGroup } from '@object-ui/components';
 import { ViewSwitcher, ViewType } from './ViewSwitcher';
 import { SchemaRenderer, useNavigationOverlay } from '@object-ui/react';
@@ -593,15 +593,25 @@ export const ListView: React.FC<ListViewProps> = ({
       {/* View Content */}
       <div key={currentView} className="flex-1 min-h-0 bg-background relative overflow-hidden animate-in fade-in-0 duration-200">
         {!loading && data.length === 0 ? (
-          <div className="flex flex-col items-center justify-center h-full min-h-[200px] text-center p-8" data-testid="empty-state">
-            <Inbox className="h-12 w-12 text-muted-foreground/50 mb-4" />
-            <h3 className="text-lg font-medium text-foreground mb-1">
-              {(typeof schema.emptyState?.title === 'string' ? schema.emptyState.title : undefined) ?? 'No items found'}
-            </h3>
-            <p className="text-sm text-muted-foreground max-w-md">
-              {(typeof schema.emptyState?.message === 'string' ? schema.emptyState.message : undefined) ?? 'There are no records to display. Try adjusting your filters or adding new data.'}
-            </p>
-          </div>
+          (() => {
+            const iconName = schema.emptyState?.icon;
+            const ResolvedIcon: LucideIcon = iconName
+              ? ((icons as Record<string, LucideIcon>)[
+                  iconName.split('-').map(w => w.charAt(0).toUpperCase() + w.slice(1)).join('')
+                ] ?? Inbox)
+              : Inbox;
+            return (
+              <div className="flex flex-col items-center justify-center h-full min-h-[200px] text-center p-8" data-testid="empty-state">
+                <ResolvedIcon className="h-12 w-12 text-muted-foreground/50 mb-4" />
+                <h3 className="text-lg font-medium text-foreground mb-1">
+                  {(typeof schema.emptyState?.title === 'string' ? schema.emptyState.title : undefined) ?? 'No items found'}
+                </h3>
+                <p className="text-sm text-muted-foreground max-w-md">
+                  {(typeof schema.emptyState?.message === 'string' ? schema.emptyState.message : undefined) ?? 'There are no records to display. Try adjusting your filters or adding new data.'}
+                </p>
+              </div>
+            );
+          })()
         ) : (
           <SchemaRenderer 
             schema={viewComponentSchema} 

packages/plugin-timeline/src/ObjectTimeline.tsx

@@ -32,7 +32,7 @@ const TimelineExtensionSchema = z.object({
    descriptionField: z.string().optional(),
    groupByField: z.string().optional(),
    colorField: z.string().optional(),
-   scale: z.enum(['hour', 'day', 'week', 'month', 'quarter', 'year']).default('day').optional(),
+   scale: z.enum(['hour', 'day', 'week', 'month', 'quarter', 'year']).optional(),
 });
 
 export interface ObjectTimelineProps {