feat: add backend_v1 migration

backend_v1/app/events/subscribers/provider.gen.go

@@ -0,0 +1,27 @@
+package subscribers
+
+import (
+	"quyun/v2/providers/event"
+
+	"go.ipao.vip/atom"
+	"go.ipao.vip/atom/container"
+	"go.ipao.vip/atom/contracts"
+	"go.ipao.vip/atom/opt"
+)
+
+func Provide(opts ...opt.Option) error {
+	if err := container.Container.Provide(func(
+		__event *event.PubSub,
+	) (contracts.Initial, error) {
+		obj := &UserRegister{}
+		if err := obj.Prepare(); err != nil {
+			return nil, err
+		}
+		__event.Handle("handler:UserRegister", obj)
+
+		return obj, nil
+	}, atom.GroupInitial); err != nil {
+		return err
+	}
+	return nil
+}