Add dedicated local admin domain routing

app/_admin/smtp/actions.ts

@@ -4,7 +4,7 @@ import { revalidatePath } from "next/cache";
 import { redirect } from "next/navigation";
 import { isRedirectError } from "next/dist/client/components/redirect-error";
 
-import { toInternalAdminPath } from "@/lib/admin-routing";
+import { getAdminAppPath, toInternalAdminPath } from "@/lib/admin-routing";
 import { clearAdminSessionCookie, isAdminAuthenticated } from "@/lib/admin-auth";
 import { isCheckedFormValue } from "@/lib/form-data";
 import {
@@ -17,7 +17,7 @@ import type { MailSettings } from "@/lib/mail-settings";
 async function ensureAdmin() {
   if (!(await isAdminAuthenticated())) {
     await clearAdminSessionCookie();
-    redirect("/");
+    redirect(getAdminAppPath("/"));
   }
 }
 
@@ -79,7 +79,7 @@ export async function saveMailSettingsAction(formData: FormData) {
 
     await updateMailSettings(nextMailSettings);
     revalidatePath(toInternalAdminPath("/smtp"));
-    redirect(withMessage("/smtp", "success", "SMTP Einstellungen gespeichert."));
+    redirect(withMessage(getAdminAppPath("/smtp"), "success", "SMTP Einstellungen gespeichert."));
   } catch (error) {
     if (isRedirectError(error)) {
       throw error;
@@ -90,7 +90,7 @@ export async function saveMailSettingsAction(formData: FormData) {
         ? error.message
         : "SMTP Einstellungen konnten nicht gespeichert werden.";
 
-    redirect(withMessage("/smtp", "error", message));
+    redirect(withMessage(getAdminAppPath("/smtp"), "error", message));
   }
 }
 
@@ -99,7 +99,7 @@ export async function sendTestEmailAction() {
 
   try {
     await sendTestEmail();
-    redirect(withMessage("/smtp", "success", "Test-E-Mail gesendet."));
+    redirect(withMessage(getAdminAppPath("/smtp"), "success", "Test-E-Mail gesendet."));
   } catch (error) {
     if (isRedirectError(error)) {
       throw error;
@@ -110,6 +110,6 @@ export async function sendTestEmailAction() {
         ? error.message
         : "Test-E-Mail konnte nicht gesendet werden.";
 
-    redirect(withMessage("/smtp", "error", message));
+    redirect(withMessage(getAdminAppPath("/smtp"), "error", message));
   }
 }