Add dedicated local admin domain routing

app/_admin/smtp/contact-protection/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 {
@@ -16,7 +16,7 @@ import type { ContactProtectionSettings } from "@/lib/contact-protection";
 async function ensureAdmin() {
   if (!(await isAdminAuthenticated())) {
     await clearAdminSessionCookie();
-    redirect("/");
+    redirect(getAdminAppPath("/"));
   }
 }
 
@@ -92,7 +92,7 @@ export async function saveContactProtectionSettingsAction(formData: FormData) {
     revalidatePath("/en/contact");
     redirect(
       withMessage(
-        "/smtp/contact-protection",
+        getAdminAppPath("/smtp/contact-protection"),
         "success",
         "Contact Protection gespeichert.",
       ),
@@ -107,6 +107,6 @@ export async function saveContactProtectionSettingsAction(formData: FormData) {
         ? error.message
         : "Contact Protection konnte nicht gespeichert werden.";
 
-    redirect(withMessage("/smtp/contact-protection", "error", message));
+    redirect(withMessage(getAdminAppPath("/smtp/contact-protection"), "error", message));
   }
 }