退款审核功能：待交接取消不再自动退款，改为客服审核后原路退回

- 租客在待交接状态取消订单不再自动退款，改为 refund_status=pending_review
- 新增退款审核页面 /admin/orders/refund-review，客服可逐个审核
- 新增 POST /refund/approve 通过退款、POST /refund/reject 驳回退款
- 新增 GET /orders/refund-pending 查询待审核退款订单列表
- 优化状态标签表述：已取消→租客已取消、已关闭→客服已关闭、异常→客服介入
- 新增 refund_status: pending_review 及其前端标签「待客服审核退款」
- AdminOrderDetailView 退款状态改用统一 refundStatusLabel

frontend/src/shared/utils/statusLabels.ts

@@ -40,29 +40,29 @@ const orderStatusMap: Record<OrderStatus, string> = {
   pending_checkout_accept: '待租客确认修正',
   checkout_disputing: '结账争议中',
   completed: '已完成',
-  cancelled: '已取消',
-  closed: '已关闭',
+  cancelled: '租客已取消',
+  closed: '客服已关闭',
   disputing: '申诉中',
-  abnormal: '异常',
+  abnormal: '客服介入',
 }
 
 const handoffStatusMap: Record<HandoffStatus, string> = {
   pending_owner: '待号主交接',
   pending_renter_confirm: '待租客确认',
-  received: '已确认收号',
+  received: '租客已收号',
   pending_owner_return_confirm: '待号主确认结账',
   pending_owner_checkout: '待号主确认结账',
   pending_renter_checkout: '待租客确认修正',
   checkout_disputed: '结账争议中',
   returned: '已归还',
-  cancelled: '已取消',
+  cancelled: '租客已取消',
   owner_timeout: '号主交接超时',
   renter_confirm_timeout: '租客确认超时',
   return_overdue: '归还逾期',
   owner_return_confirm_timeout: '号主确认结账超时',
   owner_checkout_confirm_timeout: '号主确认结账超时',
-  admin_closed: '客服关闭',
-  admin_abnormal: '客服标记异常',
+  admin_closed: '客服已关闭',
+  admin_abnormal: '客服介入',
   arbitrated: '已仲裁',
 }
 
@@ -72,12 +72,21 @@ const settlementStatusMap: Record<SettlementStatus, string> = {
   frozen: '冻结中',
   settled: '已结算',
   refunded: '已退款',
-  cancelled: '已取消',
-  closed: '已关闭',
+  cancelled: '结算已取消',
+  closed: '结算已关闭',
   disputed: '争议中',
   arbitrated: '已仲裁',
 }
 
+const refundStatusMap: Record<string, string> = {
+  none: '未退款',
+  pending_review: '待客服审核退款',
+  pending: '待退款',
+  refunding: '退款中',
+  refunded: '已退款',
+  failed: '退款失败',
+}
+
 const realnameStatusMap: Partial<Record<RealnameStatusValue, string>> = {
   unverified: '未认证',
   pending: '认证中',
@@ -148,6 +157,10 @@ export function settlementStatusLabel(status: string) {
   return readLabel(settlementStatusMap, status)
 }
 
+export function refundStatusLabel(status: string) {
+  return readLabel(refundStatusMap, status)
+}
+
 export function realnameStatusLabel(status: string) {
   return readLabel(realnameStatusMap, status)
 }