function snakeToCamel(str: string): string {
  return str.replace(/_([a-z])/g, (_, char) => char.toUpperCase());
}

/** Рекурсивно преобразует все ключи объекта из snake_case в camelCase. */
export function convertSnakeKeysToCamel<T = any>(input: any): T {
  if (Array.isArray(input)) {
    return input.map(item => convertSnakeKeysToCamel(item)) as T;
  }

  if (input !== null && typeof input === 'object') {
    const result: any = {};

    Object.keys(input).forEach(key => {
      const camelKey = snakeToCamel(key);
      result[camelKey] = convertSnakeKeysToCamel(input[key]);
    });

    return result as T;
  }

  return input as T;
}