export interface Attachment { id: number; uid: string; task_id: number; user_id: number; original_filename: string; stored_filename: string; file_size: number; mime_type: string; file_path: string; file_url?: string; created_at: string; updated_at: string; } export type AttachmentType = | 'image' | 'pdf' | 'text' | 'document' | 'spreadsheet' | 'archive' | 'other';