v3.5.3版本更新1

packages/domain/src/index.ts

@@ -33,14 +33,25 @@ export function validateMinPurchase(
   return { ok: true };
 }
 
+export const DEFAULT_STORE_SETTLEMENT_RATE = 0.6;
+
+export function resolveSettlementRate(raw: unknown): number {
+  const n = Number(raw);
+  return Number.isFinite(n) && n > 0 ? n : DEFAULT_STORE_SETTLEMENT_RATE;
+}
+
 export function validateRedeemAmount(
   balance: number,
   amount: number,
   documentAmount?: number | null,
 ): { ok: boolean; message?: string } {
-  if (amount <= 0) return { ok: false, message: '核销金额必须大于 0' };
-  if (amount > balance) return { ok: false, message: '核销金额不能超过可用余额' };
-  if (documentAmount != null && amount > documentAmount) {
+  if (!Number.isFinite(amount) || amount <= 0) {
+    return { ok: false, message: '核销金额必须大于 0' };
+  }
+  if (!Number.isFinite(balance) || amount > balance) {
+    return { ok: false, message: '核销金额不能超过可用余额' };
+  }
+  if (documentAmount != null && Number.isFinite(documentAmount) && amount > documentAmount) {
     return { ok: false, message: '核销金额不能超过该核销单可用金额' };
   }
   return { ok: true };