FlowMetadata interface exported

export interface FlowMetadata {
  /** Human-readable name */
  name: string;
  /** Optional description */
  description?: string;
  /** Base URL where the flow was recorded */
  baseUrl: string;
  /** Seed string for deterministic PRNG */
  seed: string;
  /** When the flow was created (epoch ms) */
  createdAt: number;
  /** When the flow was last updated (epoch ms) */
  updatedAt: number;
  /** Schema version for forward-compatibility */
  version: number;
  /** Tags for categorisation */
  tags?: string[];
}