feat: close overseas wallet and pallet cost flow

common-event-contract/src/main/java/com/baiyue/common/event/WalletCommandRequestedV1.java

@@ -0,0 +1,18 @@
+package com.baiyue.common.event;
+
+import java.math.BigDecimal;
+import java.time.Instant;
+
+/** 海外业务向国内 Finance 发起的客户资金冻结、结算或释放指令。 */
+public record WalletCommandRequestedV1(
+    String operation,
+    long customerId,
+    String businessType,
+    String businessNo,
+    BigDecimal amount,
+    String remark,
+    String idempotencyKey,
+    Instant requestedAt
+) {
+    public static final int VERSION = 1;
+}