feat: Privacy policy (#1957)

* feat: command side privacy policy

* feat: add privacy policy to api

* feat: add privacy policy query side

* fix: add privacy policy to mgmt api

* fix: add privacy policy to auth and base data

* feat: use privacyPolicy in login gui

* feat: use privacyPolicy in login gui

* feat: test org fatures

* feat: typos

* feat: tos in register

internal/command/policy_privacy_model.go

@@ -0,0 +1,36 @@
+package command
+
+import (
+	"github.com/caos/zitadel/internal/domain"
+	"github.com/caos/zitadel/internal/eventstore"
+	"github.com/caos/zitadel/internal/repository/policy"
+)
+
+type PrivacyPolicyWriteModel struct {
+	eventstore.WriteModel
+
+	TOSLink     string
+	PrivacyLink string
+	State       domain.PolicyState
+}
+
+func (wm *PrivacyPolicyWriteModel) Reduce() error {
+	for _, event := range wm.Events {
+		switch e := event.(type) {
+		case *policy.PrivacyPolicyAddedEvent:
+			wm.TOSLink = e.TOSLink
+			wm.PrivacyLink = e.PrivacyLink
+			wm.State = domain.PolicyStateActive
+		case *policy.PrivacyPolicyChangedEvent:
+			if e.PrivacyLink != nil {
+				wm.PrivacyLink = *e.PrivacyLink
+			}
+			if e.TOSLink != nil {
+				wm.TOSLink = *e.TOSLink
+			}
+		case *policy.PrivacyPolicyRemovedEvent:
+			wm.State = domain.PolicyStateRemoved
+		}
+	}
+	return wm.WriteModel.Reduce()
+}