kennethcheng 84b8dc3226 feat(db): 新增 exchange_rates 汇率表，支持联合主键与基础交叉汇率数据		2026-04-27 23:36:14 +08:00
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seed-exchange.ts	feat(db): 新增 exchange_rates 汇率表，支持联合主键与基础交叉汇率数据	2026-04-27 23:36:14 +08:00