Add dedicated local admin domain routing

app/_admin/portfolio/page.tsx

@@ -3,6 +3,7 @@ import { redirect } from "next/navigation";
 import { AdminDashboardShell } from "@/components/admin/admin-dashboard-shell";
 import { PortfolioProjectsOverview } from "@/components/admin/portfolio-projects-overview";
 import { clearAdminSessionCookie, isAdminAuthenticated } from "@/lib/admin-auth";
+import { getAdminAppPath } from "@/lib/admin-routing";
 import { getAdminPortfolioCategories, getAdminPortfolioProjects } from "@/lib/portfolio";
 
 export const dynamic = "force-dynamic";
@@ -33,14 +34,14 @@ export default async function AdminPortfolioPage({ searchParams }: AdminPortfoli
   const resolvedSearchParams = await searchParams;
 
   if (!(await isAdminAuthenticated())) {
-    redirect("/");
+    redirect(getAdminAppPath("/"));
   }
 
   async function logoutAction() {
     "use server";
 
     await clearAdminSessionCookie();
-    redirect("/");
+    redirect(getAdminAppPath("/"));
   }
 
   const selectedCategory = resolvedSearchParams?.category && resolvedSearchParams.category !== "__all__"