chore: move the go code into a subfolder

apps/api/internal/project/model/project_grant.go

@@ -0,0 +1,22 @@
+package model
+
+import (
+	es_models "github.com/zitadel/zitadel/internal/eventstore/v1/models"
+)
+
+type ProjectGrant struct {
+	es_models.ObjectRoot
+
+	GrantID      string
+	GrantedOrgID string
+	State        ProjectGrantState
+	RoleKeys     []string
+	Members      []*ProjectGrantMember
+}
+
+type ProjectGrantState int32
+
+const (
+	ProjectGrantStateActive ProjectGrantState = iota
+	ProjectGrantStateInactive
+)