v3.5.3版本更新1

packages/domain/src/index.test.ts

@@ -2,6 +2,7 @@ import { describe, expect, it } from 'vitest';
 import {
   calcBenefitAmount,
   calcRedeemSettleAmount,
+  resolveSettlementRate,
   calcLogisticsFeeByBottles,
   calcOrderBoxCount,
   shouldHoldAutoCourierDispatch,
@@ -92,6 +93,7 @@ describe('validateRedeemAmount', () => {
     expect(validateRedeemAmount(100, 100).ok).toBe(true);
     expect(validateRedeemAmount(50, 60).ok).toBe(false);
     expect(validateRedeemAmount(100, 0).ok).toBe(false);
+    expect(validateRedeemAmount(100, Number.NaN).ok).toBe(false);
   });
 
   it('allows direct redeem up to total balance without a document cap', () => {
@@ -114,6 +116,15 @@ describe('calcRedeemSettleAmount', () => {
   });
 });
 
+describe('resolveSettlementRate', () => {
+  it('falls back to 0.6 when missing or invalid', () => {
+    expect(resolveSettlementRate(0.6)).toBe(0.6);
+    expect(resolveSettlementRate(0)).toBe(0.6);
+    expect(resolveSettlementRate(Number.NaN)).toBe(0.6);
+    expect(resolveSettlementRate(undefined)).toBe(0.6);
+  });
+});
+
 describe('calcLogisticsFeeByBottles', () => {
   const xfx = {
     baseBottles: 2,