feat: complete dynamic domain handling (#3482)

* feat: dynamic issuer

* feat: default language from context

* remove zitadel docs from defaults

* remove ConsoleOverwriteDir

* remove notification endpoints from defaults

* custom domains in emails

* remove (external) domain

* external domain completely removed, console handling fixed

* fix test

* fix defaults.yaml

internal/api/http/middleware/instance_interceptor_test.go

@@ -9,6 +9,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"golang.org/x/text/language"
 
 	"github.com/caos/zitadel/internal/api/authz"
 )
@@ -261,6 +262,14 @@ func (m *mockInstance) ConsoleApplicationID() string {
 	return "consoleApplicationID"
 }
 
+func (m *mockInstance) DefaultLanguage() language.Tag {
+	return language.English
+}
+
 func (m *mockInstance) RequestedDomain() string {
 	return "zitadel.cloud"
 }
+
+func (m *mockInstance) RequestedHost() string {
+	return "zitadel.cloud:443"
+}

internal/api/http/origin.go

@@ -32,7 +32,11 @@ func IsOrigin(rawOrigin string) bool {
 }
 
 func BuildHTTP(hostname string, externalPort uint16, secure bool) string {
-	return BuildOrigin(fmt.Sprintf("%s:%d", hostname, externalPort), secure)
+	host := hostname
+	if externalPort != 0 {
+		host = fmt.Sprintf("%s:%d", hostname, externalPort)
+	}
+	return BuildOrigin(host, secure)
 }
 
 func BuildOrigin(host string, secure bool) string {