export const get = (key: string): string | null => typeof window === 'undefined' ? null : localStorage.getItem(key); export const set = (key: string, value: string): void => { if (typeof window === 'undefined') return; localStorage.setItem(key, value); }; export const remove = (key: string): void => { if (typeof window === 'undefined') return; localStorage.removeItem(key); };