외부 커넥션 모달에 스크롤 생성

frontend/components/admin/RestApiConnectionModal.tsx

@@ -276,12 +276,12 @@ export function RestApiConnectionModal({ isOpen, onClose, onSave, connection }:
 
   return (
     <Dialog open={isOpen} onOpenChange={onClose}>
-      <DialogContent className="max-h-[90vh] max-w-3xl overflow-hidden">
-        <DialogHeader>
+      <DialogContent className="flex max-h-[90vh] max-w-3xl flex-col">
+        <DialogHeader className="flex-shrink-0">
           <DialogTitle>{connection ? "REST API 연결 수정" : "새 REST API 연결 추가"}</DialogTitle>
         </DialogHeader>
 
-        <div className="space-y-6 py-4">
+        <div className="flex-1 space-y-6 overflow-y-auto py-4 pr-2">
           {/* 기본 정보 */}
           <div className="space-y-4">
             <h3 className="text-sm font-semibold">기본 정보</h3>
@@ -588,7 +588,7 @@ export function RestApiConnectionModal({ isOpen, onClose, onSave, connection }:
           </div>
         </div>
 
-        <DialogFooter>
+        <DialogFooter className="flex-shrink-0 border-t pt-4">
           <Button type="button" variant="outline" onClick={onClose}>
             <X className="mr-2 h-4 w-4" />
             취소