export interface AuthSession {
  sessionId: string;
  telegramUserId: number;
  username: string | null;
  displayName: string;
  active: boolean;
  expiresAt: string;
}

export interface TelegramAuthData {
  id: number;
  first_name: string;
  last_name?: string;
  username?: string;
  photo_url?: string;
  auth_date: number;
  hash: string;
}

export type AuthStatus = 'unknown' | 'checking' | 'authenticated' | 'expired' | 'unauthenticated';