hjhan
a86b496f87
test(margin): 新增 CalcMarginInterest 影子对账——保证金计息消除 orginPv/差分,与旧管线数值一致
- 新增 CalcMarginInterest(SwapDealService):保证金专属计息,复用 SimpleInterestAccrual 纯函数,notional 直接取保证金余额(EOD=昨日终本金/盘中=今日本金),消除融资腿差分公式 accrualBasis=TdInterestPrincipal+posiPrincipal-orginPv 与 orginPv 维度 hack(对保证金 accrualBasis 恒等于 posiPrincipal,差分冗余)
- 保留累计语义(priorAccrued+增量),满足下游 SwapEodPositionService 字段契约
- 新增 MarginInterestShadowTest:5 场景对账(EOD 续接/首日、盘中全平/部分平仓/互换),新旧 InterestAmount/TdInterestAmount 严格一致
- 本提交仅影子对账,生产路径未改(GetInterests 仍走 CalcEodInterest/CalcUnwindInterest);下一步提交2 切换生产 + 删 orginPv hack
零生产风险;编译 0 错误;影子对账 5/5 + 现有保证金/利息回归 60/60 通过。
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