chore: move the go code into a subfolder

apps/api/internal/command/resource_owner_model.go

@@ -0,0 +1,41 @@
+package command
+
+import (
+	"github.com/zitadel/zitadel/internal/eventstore"
+)
+
+// resourceOwnerModel can be used to retrieve the resourceOwner of an aggregate
+// by checking the first event it.
+type resourceOwnerModel struct {
+	instanceID    string
+	aggregateType eventstore.AggregateType
+	aggregateID   string
+
+	resourceOwner string
+}
+
+func NewResourceOwnerModel(instanceID string, aggregateType eventstore.AggregateType, aggregateID string) *resourceOwnerModel {
+	return &resourceOwnerModel{
+		instanceID:    instanceID,
+		aggregateType: aggregateType,
+		aggregateID:   aggregateID,
+	}
+}
+
+func (r *resourceOwnerModel) Reduce() error {
+	return nil
+}
+func (r *resourceOwnerModel) AppendEvents(events ...eventstore.Event) {
+	if len(events) == 1 {
+		r.resourceOwner = events[0].Aggregate().ResourceOwner
+	}
+}
+func (r *resourceOwnerModel) Query() *eventstore.SearchQueryBuilder {
+	return eventstore.NewSearchQueryBuilder(eventstore.ColumnsEvent).
+		InstanceID(r.instanceID).
+		AddQuery().
+		AggregateTypes(r.aggregateType).
+		AggregateIDs(r.aggregateID).
+		Builder().
+		Limit(1)
+}