K-pop Fans Spending Dynamics

@Doi Execute deep-dive web research and synthesis on K-pop fan spending behaviors (bulk album purchasing, photocard financialization, gacha/gambling mechanics, social bragging rights, and emotional value) using the initialized workspace at /home/user/.assets-research/Kpop_Fans_Spending_Research_bc5135d7a9da4f8a94a8c2ba5ebca413. Deliver the final output as a comprehensive, structured Markdown research report (.md file).