feat(orders): 号主可从自己的列表隐藏已结束订单

只写入隐藏时间，订单和款项仍保留给租客与后台。详情按钮固定对齐，删除跟在后面。

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/internal/modules/order/owner_hide_test.go

@@ -0,0 +1,61 @@
+package order
+
+import (
+	"testing"
+	"time"
+
+	"hfb_sys/backend/internal/model"
+)
+
+func settledHistoryOrder() model.RentalOrder {
+	return model.RentalOrder{
+		Status:                  orderStatusCompleted,
+		SettlementStatus:        settlementStatusSettled,
+		RefundStatus:            "none",
+		DepositHoldStatus:       model.DepositHoldStatusNone,
+		OfflineSettlementStatus: offlineSettlementStatusNone,
+	}
+}
+
+func TestOwnerMayHideSettledHistory(t *testing.T) {
+	if !ownerMayHideOrder(settledHistoryOrder(), false, "") {
+		t.Fatal("已结算完成的订单应允许号主隐藏")
+	}
+	cancelled := settledHistoryOrder()
+	cancelled.Status = orderStatusCancelled
+	cancelled.SettlementStatus = settlementStatusUnsettled
+	if !ownerMayHideOrder(cancelled, false, "") {
+		t.Fatal("已取消且没有在途退款的订单应允许号主隐藏")
+	}
+}
+
+func TestOwnerMayHideBlocksUnfinishedOrders(t *testing.T) {
+	cases := []struct {
+		name    string
+		edit    func(*model.RentalOrder)
+		dispute bool
+		dist    string
+	}{
+		{name: "租用中", edit: func(order *model.RentalOrder) { order.Status = orderStatusRenting }},
+		{name: "退款审核中", edit: func(order *model.RentalOrder) { order.RefundStatus = refundStatusPendingReview }},
+		{name: "押金暂扣", edit: func(order *model.RentalOrder) { order.DepositHoldStatus = model.DepositHoldStatusHeld }},
+		{name: "线下结算未完成", edit: func(order *model.RentalOrder) { order.OfflineSettlementStatus = offlineSettlementStatusPending }},
+		{name: "进行中争议", dispute: true},
+		{name: "分销尚未释放", dist: "pending"},
+		{name: "已经隐藏", edit: func(order *model.RentalOrder) {
+			now := time.Now()
+			order.OwnerHiddenAt = &now
+		}},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			order := settledHistoryOrder()
+			if tc.edit != nil {
+				tc.edit(&order)
+			}
+			if ownerMayHideOrder(order, tc.dispute, tc.dist) {
+				t.Fatal("该订单不应允许号主隐藏")
+			}
+		})
+	}
+}