Refactor admin area and remove legacy root paths

app/root/portfolio/projects/new/page.tsx

@@ -1,66 +0,0 @@
-import { redirect } from "next/navigation";
-
-import { MotionFade } from "@/components/motion-fade";
-import { PortfolioProjectForm } from "@/components/root/portfolio-project-form";
-import { RootDashboardShell } from "@/components/root/root-dashboard-shell";
-import { clearAdminSessionCookie, isAdminAuthenticated } from "@/lib/admin-auth";
-import { getMediaOptions } from "@/lib/media";
-import { getActivePortfolioCategories } from "@/lib/portfolio";
-
-import { saveProjectAction } from "../../actions";
-
-export const dynamic = "force-dynamic";
-
-const copy = {
-  title: "Neues Portfolio Projekt",
-  subtitle: "Projekt mit Kategorie, Abschnitten und Dateien anlegen.",
-  overview: "Uebersicht",
-  maintenance: "Wartungsmodus",
-  uiKit: "UI Kit",
-  media: "Media",
-  siteSettings: "Settings",
-  portfolio: "Portfolio",
-  logout: "Ausloggen",
-  backToSite: "Zur Website",
-};
-
-export default async function RootNewPortfolioProjectPage() {
-  if (!(await isAdminAuthenticated())) {
-    redirect("/");
-  }
-
-  async function logoutAction() {
-    "use server";
-
-    await clearAdminSessionCookie();
-    redirect("/");
-  }
-
-  const [categories, mediaOptions] = await Promise.all([
-    getActivePortfolioCategories(),
-    getMediaOptions(),
-  ]);
-
-  return (
-    <RootDashboardShell
-      copy={copy}
-      active="portfolio"
-      portfolioChild="new-project"
-      logoutAction={logoutAction}
-      headerTitle={copy.title}
-      headerDescription={copy.subtitle}
-    >
-      <div className="space-y-6">
-        <MotionFade delay={0.15}>
-          <PortfolioProjectForm
-            action={saveProjectAction}
-            categories={categories}
-            mediaOptions={mediaOptions}
-            formId="portfolio-project-form"
-            redirectPath="/portfolio/projects/new"
-          />
-        </MotionFade>
-      </div>
-    </RootDashboardShell>
-  );
-}