Add dedicated local admin domain routing

app/_admin/media/actions.ts

@@ -5,7 +5,7 @@ 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 { countMediaUsageReferences, getMediaAssetById } from "@/lib/media";
 import { createStandaloneMediaAsset, deleteMediaAssetAndFile } from "@/lib/media-service";
@@ -15,7 +15,7 @@ import { prisma } from "@/lib/prisma";
 async function ensureAdmin() {
   if (!(await isAdminAuthenticated())) {
     await clearAdminSessionCookie();
-    redirect("/");
+    redirect(getAdminAppPath("/"));
   }
 }
 
@@ -47,14 +47,14 @@ export async function createMediaAssetAction(formData: FormData) {
     });
 
     revalidateMediaPages();
-    redirect(withMessage("/media", "success", "Datei gespeichert."));
+    redirect(withMessage(getAdminAppPath("/media"), "success", "Datei gespeichert."));
   } catch (error) {
     if (isRedirectError(error)) {
       throw error;
     }
 
     const message = error instanceof Error ? error.message : "Datei konnte nicht gespeichert werden.";
-    redirect(withMessage("/media", "error", message));
+    redirect(withMessage(getAdminAppPath("/media"), "error", message));
   }
 }
 
@@ -67,13 +67,13 @@ export async function deleteMediaAssetAction(formData: FormData) {
     const asset = await getMediaAssetById(assetId);
 
     if (!asset) {
-      redirect(withMessage("/media", "error", "Datei nicht gefunden."));
+      redirect(withMessage(getAdminAppPath("/media"), "error", "Datei nicht gefunden."));
     }
 
     const usageCount = await countMediaUsageReferences(asset.id);
 
     if (usageCount > 0) {
-      redirect(withMessage("/media", "error", "Datei wird noch verwendet."));
+      redirect(withMessage(getAdminAppPath("/media"), "error", "Datei wird noch verwendet."));
     }
 
     await prisma.mediaAsset.delete({
@@ -90,13 +90,13 @@ export async function deleteMediaAssetAction(formData: FormData) {
     }
 
     revalidateMediaPages();
-    redirect(withMessage("/media", "success", "Datei geloescht."));
+    redirect(withMessage(getAdminAppPath("/media"), "success", "Datei geloescht."));
   } catch (error) {
     if (isRedirectError(error)) {
       throw error;
     }
 
     const message = error instanceof Error ? error.message : "Datei konnte nicht geloescht werden.";
-    redirect(withMessage("/media", "error", message));
+    redirect(withMessage(getAdminAppPath("/media"), "error", message));
   }
 }

app/_admin/media/page.tsx

@@ -3,6 +3,7 @@ import { redirect } from "next/navigation";
 import { MediaLibraryManager } from "@/components/admin/media-library-manager";
 import { AdminDashboardShell } from "@/components/admin/admin-dashboard-shell";
 import { clearAdminSessionCookie, isAdminAuthenticated } from "@/lib/admin-auth";
+import { getAdminAppPath } from "@/lib/admin-routing";
 import { getAdminMediaAssets } from "@/lib/media";
 
 export const dynamic = "force-dynamic";
@@ -22,14 +23,14 @@ const copy = {
 
 export default async function AdminMediaPage() {
   if (!(await isAdminAuthenticated())) {
-    redirect("/");
+    redirect(getAdminAppPath("/"));
   }
 
   async function logoutAction() {
     "use server";
 
     await clearAdminSessionCookie();
-    redirect("/");
+    redirect(getAdminAppPath("/"));
   }
 
   const mediaAssets = await getAdminMediaAssets();