export interface CreateVideoDto {
  model_name?: string; // e.g., kling-v1
  prompt: string;
  negative_prompt?: string;
  sound?: 'on' | 'off';
  cfg_scale?: number;
  mode?: 'std' | 'pro';
  camera_control?: any;
  aspect_ratio?: '16:9' | '9:16' | '1:1';
  duration?: string; // seconds
  callback_url?: string;
  external_task_id?: string;
}