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- 移除 PeriodContext.preSignedOrderByOutcome,周期开始仅预取参数(账户、解密、费率、CLOB 等) - ensurePeriodContext 不再预签两个 outcome 的订单 - placeOrderForTrigger 统一 FIXED/RATIO 流程,均于触发时计算 size 并签名提交 - 每次触发仅对当前 outcome 签名一次,避免预签两张仅用一张的浪费 Co-authored-by: Cursor <cursoragent@cursor.com>