fix(finance): preserve voided receivables and return current revisions

finance/src/main/java/com/baiyue/finance/service/ReconciliationStatementService.java

@@ -114,6 +114,7 @@ public class ReconciliationStatementService {
         return detail(request.customerId(), statementId);
     }
 
+    /** 推进对账单状态并保存修订，响应包含本次操作刚写入的审计记录。 */
     @Transactional
     public ReconciliationDetail action(long operatorId, long statementId, String key, ReconciliationActionRequest request) {
         validateAction(statementId, request);
@@ -152,9 +153,11 @@ public class ReconciliationStatementService {
         ReconciliationDetail after = detail(before.customerId(), statementId);
         audit(before.customerId(), statementId, "RECONCILIATION_" + action, request.reason(), before, after, operatorId);
         complete(before.customerId(), operatorId, "RECONCILIATION_ACTION", key, statementId);
-        return after;
+        // 审计在金额/状态快照之后写入，返回前重新读取，避免首个响应缺少最新修订。
+        return detail(before.customerId(), statementId);
     }
 
+    /** 调整已出账明细并保留前后金额，响应与随后查询的修订历史一致。 */
     private ReconciliationDetail adjust(long operatorId, long statementId, String key,
                                         ReconciliationActionRequest request, Bill before) {
         if (!"ISSUED".equals(before.status())) throw error("FIN_409", "仅已出账对账单允许调整");
@@ -176,7 +179,7 @@ public class ReconciliationStatementService {
         ReconciliationDetail after = detail(before.customerId(), statementId);
         audit(before.customerId(), statementId, "RECONCILIATION_ADJUST", request.reason(), before, after, operatorId);
         complete(before.customerId(), operatorId, "RECONCILIATION_ACTION", key, statementId);
-        return after;
+        return detail(before.customerId(), statementId);
     }
 
     public ReconciliationDetail detail(long customerId, long statementId) {

finance/src/main/resources/db/finance.sql

@@ -437,6 +437,7 @@ CREATE TABLE IF NOT EXISTS fin_settlement (
   due_date DATE NOT NULL COMMENT '结算到期日期',
   payment_status VARCHAR(24) NOT NULL DEFAULT 'UNPAID' COMMENT '收付款状态：UNPAID未收付、PARTIALLY_PAID部分收付、PAID已结清',
   status VARCHAR(24) NOT NULL DEFAULT 'ISSUED' COMMENT '结算状态：ISSUED已生效、PARTIALLY_PAID部分收付、PAID已结清、VOIDED已作废',
+  active_receivable_statement_id BIGINT UNSIGNED GENERATED ALWAYS AS (CASE WHEN direction='RECEIVABLE' AND status<>'VOIDED' THEN reconciliation_statement_id ELSE NULL END) VIRTUAL COMMENT '有效应收占用的对账单；作废单不占用，历史关联仍保留',
   version INT UNSIGNED NOT NULL DEFAULT 0 COMMENT '乐观锁版本号',
   created_by BIGINT UNSIGNED NOT NULL COMMENT '创建操作人ID',
   updated_by BIGINT UNSIGNED NOT NULL COMMENT '最后修改操作人ID',
@@ -444,7 +445,7 @@ CREATE TABLE IF NOT EXISTS fin_settlement (
   updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3) COMMENT '最后更新时间',
   PRIMARY KEY (id),
   UNIQUE KEY uk_fin_settlement_no (tenant_id, settlement_no),
-  UNIQUE KEY uk_fin_settlement_receivable_statement (tenant_id, reconciliation_statement_id, direction),
+  UNIQUE KEY uk_fin_settlement_active_receivable (tenant_id, active_receivable_statement_id),
   KEY idx_fin_settlement_customer_direction_status (tenant_id, direction, status),
   KEY idx_fin_settlement_supplier_status (supplier_id, direction, status),
   KEY idx_fin_settlement_receivable_statistics (direction, currency_code, generated_date, status, tenant_id),