test(utils): 添加事件驱动模型测试

- 在 sqrt_test.go 中添加了 fastSqr1 测试函数，用于测试事件驱动模型
- 新增了 Event 和 Uint32AsyncEvent 类型用于测试
- 更新了 go.work、go.mod 和

common/utils/event/test_scenarios/request-reply-callback/orders/service.go

@@ -0,0 +1,35 @@
+package orders
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/badu/bus"
+	"github.com/badu/bus/test_scenarios/request-reply-callback/events"
+)
+
+type ServiceImpl struct {
+	sb *strings.Builder
+}
+
+func NewService(sb *strings.Builder) ServiceImpl {
+	result := ServiceImpl{sb: sb}
+	return result
+}
+
+func (s *ServiceImpl) RegisterOrder(ctx context.Context, productIDs []int) (*Order, error) {
+	event := events.NewRequestEvent[Order](Order{ProductIDs: productIDs})
+	s.sb.WriteString(fmt.Sprintf("dispatching event typed %T\n", event))
+	bus.Pub(event)
+	<-event.Done            // wait for "reply"
+	return event.Callback() // return the callback, which is containing the actual result
+}
+
+func (s *ServiceImpl) GetOrderStatus(ctx context.Context, orderID int) (*OrderStatus, error) {
+	event := events.NewRequestEvent[OrderStatus](OrderStatus{OrderID: orderID})
+	s.sb.WriteString(fmt.Sprintf("dispatching event typed %T\n", event))
+	bus.Pub(event)
+	<-event.Done            // wait for "reply"
+	return event.Callback() // return the callback, which is containing the actual result
+}