feat(distribution): 补齐退款加价回退、本站自卖与开通默认规则

退款时压缩卖方加价，人工/自动批次仅完结单可入账，号主收入进主站钱包；仲裁后重算释放并支持作废未入账 DS。开通时四种模式按默认生效，对外口径合并为 35/40/25，不再单独展示通道费。

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

backend/internal/modules/distribution/release.go

@@ -39,7 +39,7 @@ func (r *Repository) AutoReleaseDueSettlements(ctx context.Context) (int, error)
 		Select("DISTINCT f.order_id").
 		Joins("JOIN rental_orders ro ON ro.id = f.order_id").
 		Where("f.settlement_status = ? AND f.release_at IS NOT NULL AND f.release_at <= ?", "pending", now).
-		Where("ro.status = ?", "completed").
+		Where("ro.status IN ?", settlementReadyOrderStatuses).
 		Where("ro.refund_status NOT IN ?", autoReleaseBlockedRefundStatuses).
 		Where("NOT EXISTS (SELECT 1 FROM disputes d WHERE d.order_id = ro.id AND d.status IN ?)", autoReleaseBlockedDisputeStatuses).
 		Order("f.order_id ASC").
@@ -189,7 +189,7 @@ func releasableOrder(tx *gorm.DB, orderID uint64, now time.Time) (bool, error) {
 	if err := tx.Select("id, status, refund_status").First(&order, orderID).Error; err != nil {
 		return false, err
 	}
-	if order.Status != "completed" || slices.Contains(autoReleaseBlockedRefundStatuses, order.RefundStatus) {
+	if !orderStatusAllowsRelease(order.Status) || slices.Contains(autoReleaseBlockedRefundStatuses, order.RefundStatus) {
 		return false, nil
 	}
 	var openDisputes int64