fix: remove getDefaultClassNames import for react-day-picker v9 compatibility

- Remove getDefaultClassNames import which was removed in react-day-picker v9
- Update Calendar component to use custom class names directly without merging with default classes
- Update CalendarDayButton component to remove defaultClassNames usage
- Maintains existing styling while ensuring compatibility with react-day-picker v9.7.0

Fixes build error: 'getDefaultClassNames' is not exported by react-day-picker

Author: codegen-sh[bot]

packages/components/src/ui/calendar.tsx

@@ -1,6 +1,6 @@
 import { ChevronDownIcon, ChevronLeftIcon, ChevronRightIcon } from 'lucide-react';
 import * as React from 'react';
-import { type DayButton, DayPicker, getDefaultClassNames } from 'react-day-picker';
+import { type DayButton, DayPicker } from 'react-day-picker';
 
 import { Button, buttonVariants } from './button';
 import { cn } from './utils';
@@ -17,7 +17,6 @@ function Calendar({
 }: React.ComponentProps<typeof DayPicker> & {
   buttonVariant?: React.ComponentProps<typeof Button>['variant'];
 }) {
-  const defaultClassNames = getDefaultClassNames();
 
   return (
     <DayPicker
@@ -34,63 +33,42 @@ function Calendar({
         ...formatters,
       }}
       classNames={{
-        root: cn('w-fit', defaultClassNames.root),
-        months: cn('flex gap-4 flex-col md:flex-row relative', defaultClassNames.months),
-        month: cn('flex flex-col w-full gap-4', defaultClassNames.month),
-        nav: cn('flex items-center gap-1 w-full absolute top-0 inset-x-0 justify-between', defaultClassNames.nav),
+        root: 'w-fit',
+        months: 'flex gap-4 flex-col md:flex-row relative',
+        month: 'flex flex-col w-full gap-4',
+        nav: 'flex items-center gap-1 w-full absolute top-0 inset-x-0 justify-between',
         button_previous: cn(
           buttonVariants({ variant: buttonVariant }),
           'size-(--cell-size) aria-disabled:opacity-50 p-0 select-none',
-          defaultClassNames.button_previous,
         ),
         button_next: cn(
           buttonVariants({ variant: buttonVariant }),
           'size-(--cell-size) aria-disabled:opacity-50 p-0 select-none',
-          defaultClassNames.button_next,
         ),
-        month_caption: cn(
-          'flex items-center justify-center h-(--cell-size) w-full px-(--cell-size)',
-          defaultClassNames.month_caption,
-        ),
-        dropdowns: cn(
-          'w-full flex items-center text-sm font-medium justify-center h-(--cell-size) gap-1.5',
-          defaultClassNames.dropdowns,
-        ),
-        dropdown_root: cn(
-          'relative has-focus:border-ring border border-input shadow-xs has-focus:ring-ring/50 has-focus:ring-[3px] rounded-md',
-          defaultClassNames.dropdown_root,
-        ),
-        dropdown: cn('absolute inset-0 opacity-0', defaultClassNames.dropdown),
+        month_caption: 'flex items-center justify-center h-(--cell-size) w-full px-(--cell-size)',
+        dropdowns: 'w-full flex items-center text-sm font-medium justify-center h-(--cell-size) gap-1.5',
+        dropdown_root: 'relative has-focus:border-ring border border-input shadow-xs has-focus:ring-ring/50 has-focus:ring-[3px] rounded-md',
+        dropdown: 'absolute inset-0 opacity-0',
         caption_label: cn(
           'select-none font-medium',
           captionLayout === 'label'
             ? 'text-sm'
             : 'rounded-md pl-2 pr-1 flex items-center gap-1 text-sm h-8 [&>svg]:text-muted-foreground [&>svg]:size-3.5',
-          defaultClassNames.caption_label,
         ),
         table: 'w-full border-collapse',
-        weekdays: cn('flex', defaultClassNames.weekdays),
-        weekday: cn(
-          'text-muted-foreground rounded-md flex-1 font-normal text-[0.8rem] select-none',
-          defaultClassNames.weekday,
-        ),
-        week: cn('flex w-full mt-2', defaultClassNames.week),
-        week_number_header: cn('select-none w-(--cell-size)', defaultClassNames.week_number_header),
-        week_number: cn('text-[0.8rem] select-none text-muted-foreground', defaultClassNames.week_number),
-        day: cn(
-          'relative w-full h-full p-0 text-center [&:first-child[data-selected=true]_button]:rounded-l-md [&:last-child[data-selected=true]_button]:rounded-r-md group/day aspect-square select-none',
-          defaultClassNames.day,
-        ),
-        range_start: cn('rounded-l-md bg-accent', defaultClassNames.range_start),
-        range_middle: cn('rounded-none', defaultClassNames.range_middle),
-        range_end: cn('rounded-r-md bg-accent', defaultClassNames.range_end),
-        today: cn(
-          'bg-accent text-accent-foreground rounded-md data-[selected=true]:rounded-none',
-          defaultClassNames.today,
-        ),
-        outside: cn('text-muted-foreground aria-selected:text-muted-foreground', defaultClassNames.outside),
-        disabled: cn('text-muted-foreground opacity-50', defaultClassNames.disabled),
-        hidden: cn('invisible', defaultClassNames.hidden),
+        weekdays: 'flex',
+        weekday: 'text-muted-foreground rounded-md flex-1 font-normal text-[0.8rem] select-none',
+        week: 'flex w-full mt-2',
+        week_number_header: 'select-none w-(--cell-size)',
+        week_number: 'text-[0.8rem] select-none text-muted-foreground',
+        day: 'relative w-full h-full p-0 text-center [&:first-child[data-selected=true]_button]:rounded-l-md [&:last-child[data-selected=true]_button]:rounded-r-md group/day aspect-square select-none',
+        range_start: 'rounded-l-md bg-accent',
+        range_middle: 'rounded-none',
+        range_end: 'rounded-r-md bg-accent',
+        today: 'bg-accent text-accent-foreground rounded-md data-[selected=true]:rounded-none',
+        outside: 'text-muted-foreground aria-selected:text-muted-foreground',
+        disabled: 'text-muted-foreground opacity-50',
+        hidden: 'invisible',
         ...classNames,
       }}
       components={{
@@ -124,8 +102,6 @@ function Calendar({
 }
 
 function CalendarDayButton({ className, day, modifiers, ...props }: React.ComponentProps<typeof DayButton>) {
-  const defaultClassNames = getDefaultClassNames();
-
   const ref = React.useRef<HTMLButtonElement>(null);
   React.useEffect(() => {
     if (modifiers.focused) ref.current?.focus();
@@ -145,7 +121,6 @@ function CalendarDayButton({ className, day, modifiers, ...props }: React.Compon
       data-range-middle={modifiers.range_middle}
       className={cn(
         'data-[selected-single=true]:bg-primary data-[selected-single=true]:text-primary-foreground data-[range-middle=true]:bg-accent data-[range-middle=true]:text-accent-foreground data-[range-start=true]:bg-primary data-[range-start=true]:text-primary-foreground data-[range-end=true]:bg-primary data-[range-end=true]:text-primary-foreground group-data-[focused=true]/day:border-ring group-data-[focused=true]/day:ring-ring/50 dark:hover:text-accent-foreground flex aspect-square size-auto w-full min-w-(--cell-size) flex-col gap-1 leading-none font-normal group-data-[focused=true]/day:relative group-data-[focused=true]/day:z-10 group-data-[focused=true]/day:ring-[3px] data-[range-end=true]:rounded-md data-[range-end=true]:rounded-r-md data-[range-middle=true]:rounded-none data-[range-start=true]:rounded-md data-[range-start=true]:rounded-l-md [&>span]:text-xs [&>span]:opacity-70',
-        defaultClassNames.day,
         className,
       )}
       {...props}