feat: custom domain feature (#1618)

* fix: custom domain

* fix: custom domain

* fix: custom domain

* fix: custom domain feature in proto

* fix: remove custom domains on feature downgrade

* fix test

* fix: custom domain feature in proto

* ensure tests work

Co-authored-by: fabi <[email protected]>

internal/command/iam_features_model.go

@@ -62,7 +62,8 @@ func (wm *IAMFeaturesWriteModel) NewSetEvent(
 	loginPolicyRegistration,
 	loginPolicyUsernameLogin,
 	passwordComplexityPolicy,
-	labelPolicy bool,
+	labelPolicy,
+	customDomain bool,
 ) (*iam.FeaturesSetEvent, bool) {
 
 	changes := make([]features.FeaturesChanges, 0)
@@ -103,6 +104,9 @@ func (wm *IAMFeaturesWriteModel) NewSetEvent(
 	if wm.LabelPolicy != labelPolicy {
 		changes = append(changes, features.ChangeLabelPolicy(labelPolicy))
 	}
+	if wm.CustomDomain != customDomain {
+		changes = append(changes, features.ChangeCustomDomain(customDomain))
+	}
 
 	if len(changes) == 0 {
 		return nil, false