export interface LessonProgress {
  topic_id: string;
  lesson_id: string;
  completed: boolean;
  best_score: number;
  completed_at: string | null;
}

export interface UserStats {
  xp: number;
  streak_days: number;
  hearts: number;
  streak_freezes: number;
}

export interface ProgressData {
  lessons: LessonProgress[];
  stats: UserStats;
}