fix: constrain ScrollArea maxHeight to force dialog scrolling

shop/components/admin/create-product-dialog.tsx

@@ -135,8 +135,8 @@ export function CreateProductDialog({ children, categories, product }: { childre
         </DialogHeader>
 
         <Form {...form}>
-          <form onSubmit={form.handleSubmit(onSubmit)} className="space-y-6 flex-1 min-h-0 overflow-hidden flex flex-col">
-            <ScrollArea className="flex-1 min-h-0 pr-4">
+          <form onSubmit={form.handleSubmit(onSubmit)} className="space-y-6 flex flex-col">
+            <ScrollArea className="pr-4" style={{ maxHeight: 'calc(90vh - 220px)' }}>
               <div className="space-y-6 py-4">
                 <div className="grid grid-cols-2 gap-4">
                   <FormField