fix: rename iam to instance (#3345)

* fix: rename iam command side to instance

* fix: rename iam command side to instance

* fix: rename iam command side to instance

* fix: rename iam command side to instance

* fix: rename orgiampolicy to domain policy

* fix: merge conflicts

* fix: protos

* fix: md files

* implement deprecated org iam policy again

Co-authored-by: Livio Amstutz <livio.a@gmail.com>

internal/command/policy_org_model.go

@@ -0,0 +1,29 @@
+package command
+
+import (
+	"github.com/caos/zitadel/internal/domain"
+	"github.com/caos/zitadel/internal/eventstore"
+	"github.com/caos/zitadel/internal/repository/policy"
+)
+
+type PolicyDomainWriteModel struct {
+	eventstore.WriteModel
+
+	UserLoginMustBeDomain bool
+	State                 domain.PolicyState
+}
+
+func (wm *PolicyDomainWriteModel) Reduce() error {
+	for _, event := range wm.Events {
+		switch e := event.(type) {
+		case *policy.DomainPolicyAddedEvent:
+			wm.UserLoginMustBeDomain = e.UserLoginMustBeDomain
+			wm.State = domain.PolicyStateActive
+		case *policy.DomainPolicyChangedEvent:
+			if e.UserLoginMustBeDomain != nil {
+				wm.UserLoginMustBeDomain = *e.UserLoginMustBeDomain
+			}
+		}
+	}
+	return wm.WriteModel.Reduce()
+}