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- schema ComparisonResultIn 显式声明 coupon_saved(否则 model_dump 丢字段) - 上报→落库→读出贯通, 加 passthrough 测试(目标带值/源平台 null) - 更新 api/database 文档 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>