修正分组命名,不再自行创造: - CN_GROWTH/CN_VALUE → A - US_TECH → US - JP_BROAD → JP - EU_BROAD → EU - HK_BROAD/HK_TECH → HK - FIXED_INCOME → BOND - COMMODITY → COMMODITY (不变) 同步更新 market_overrides: - CN_EQUITY → A - HK_EQUITY → HK - US_EQUITY → US 现在 group 字段完全映射 V1 的 market 字段值