chore: release v1.0.3

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/internal/handler/stock_out.go

@@ -44,7 +44,7 @@ func (h *StockOutHandler) List(c *gin.Context) {
 	var total int64
 	query.Count(&total)
 
-	var orders []model.StockOutOrder
+	orders := make([]model.StockOutOrder, 0)
 	query.Preload("Warehouse").Preload("Partner").Preload("Operator").Preload("Reviewer").
 		Offset((page - 1) * pageSize).Limit(pageSize).
 		Order("id DESC").Find(&orders)