feat: update DatePicker to use latest Calendar with dropdown navigation

- Updated DatePicker to use the new Calendar component with advanced features
- Added support for captionLayout='dropdown' for month/year dropdowns
- Maintained backward compatibility with existing DatePicker interface
- Now includes all latest shadcn/ui Calendar improvements:
  - Month/year dropdown navigation
  - Advanced styling with CSS custom properties
  - Improved accessibility and focus management
  - RTL support

This addresses the user's request to use the latest calendar component
with month/year dropdown functionality as shown in the image.

Author: codegen-sh[bot]

packages/components/src/ui/date-picker.tsx

@@ -1,52 +1,27 @@
-import { ChevronLeft, ChevronRight } from 'lucide-react';
 import type * as React from 'react';
-import { type CustomComponents, DayPicker } from 'react-day-picker';
-import { buttonVariants } from './button';
-import { cn } from './utils';
+import { DayPicker } from 'react-day-picker';
+import { Calendar } from './calendar';
 
-export type DatePickerProps = React.ComponentProps<typeof DayPicker>;
+export type DatePickerProps = React.ComponentProps<typeof DayPicker> & {
+  buttonVariant?: React.ComponentProps<typeof Calendar>['buttonVariant'];
+};
 
-function DatePicker({ className, classNames, showOutsideDays = true, ...props }: DatePickerProps) {
+function DatePicker({ 
+  className, 
+  classNames, 
+  showOutsideDays = true, 
+  captionLayout = 'dropdown',
+  buttonVariant = 'ghost',
+  ...props 
+}: DatePickerProps) {
   return (
-    <DayPicker
+    <Calendar
       showOutsideDays={showOutsideDays}
-      className={cn('p-3', className)}
+      className={className}
+      classNames={classNames}
+      captionLayout={captionLayout}
+      buttonVariant={buttonVariant}
       data-slot="date-picker"
-      classNames={{
-        months: 'flex flex-col sm:flex-row space-y-4 sm:space-x-4 sm:space-y-0',
-        month: 'space-y-4',
-        caption: 'flex justify-center pt-1 relative items-center',
-        caption_label: 'text-sm font-medium',
-        nav: 'space-x-1 flex items-center',
-        nav_button: cn(
-          buttonVariants({ variant: 'outline' }),
-          'h-7 w-7 bg-transparent p-0 opacity-50 hover:opacity-100',
-        ),
-        nav_button_previous: 'absolute left-1',
-        nav_button_next: 'absolute right-1',
-        table: 'w-full border-collapse space-y-1',
-        head_row: 'flex',
-        head_cell: 'text-muted-foreground rounded-md w-9 font-normal text-[0.8rem]',
-        row: 'flex w-full mt-2',
-        cell: 'h-9 w-9 text-center text-sm p-0 relative [&:has([aria-selected].day-range-end)]:rounded-r-md [&:has([aria-selected].day-outside)]:bg-accent/50 [&:has([aria-selected])]:bg-accent first:[&:has([aria-selected])]:rounded-l-md last:[&:has([aria-selected])]:rounded-r-md focus-within:relative focus-within:z-20',
-        day: cn(buttonVariants({ variant: 'ghost' }), 'h-9 w-9 p-0 font-normal aria-selected:opacity-100'),
-        day_range_end: 'day-range-end',
-        day_selected:
-          'bg-primary text-primary-foreground hover:bg-primary hover:text-primary-foreground focus:bg-primary focus:text-primary-foreground',
-        day_today: 'bg-accent text-accent-foreground',
-        day_outside:
-          'day-outside text-muted-foreground aria-selected:bg-accent/50 aria-selected:text-muted-foreground',
-        day_disabled: 'text-muted-foreground opacity-50',
-        day_range_middle: 'aria-selected:bg-accent aria-selected:text-accent-foreground',
-        day_hidden: 'invisible',
-        ...classNames,
-      }}
-      components={
-        {
-          IconLeft: ({ ...props }) => <ChevronLeft className="h-4 w-4" {...props} />,
-          IconRight: ({ ...props }) => <ChevronRight className="h-4 w-4" {...props} />,
-        } as Partial<CustomComponents>
-      }
       {...props}
     />
   );