message: change: ThreadMetadata#archiverId has been removed
diff: export interface ThreadMetadata {
  /** Whether the thread is archived */
  archived: boolean;
  - /** Id of the user that last archived or unarchived the thread */
  - archiverId?: string;
  /** Duration in minutes to automatically archive the thread after recent activity */
  autoArchiveDuration: 60 | 1440 | 4320 | 10080;
  // TODO(threads): channel struct should convert this to a unixx
  