Initial commit: ANOUMA website with Payload CMS, WebRTC meetings, and booking system

- Next.js 16 App Router site with the ANOUMA design system
- Payload CMS (PostgreSQL) for offers, events, posts and page content
- WebRTC video-call system with custom signaling server
- SMTP email reminders and booking-request notifications
- Customer accounts, calendar-based availability, and booking workflow

components/PlaceholderNote.tsx

@@ -0,0 +1,10 @@
+import type { ReactNode } from "react";
+
+/** Visibly marks a section whose real copy is not yet available in texte.txt. */
+export function PlaceholderNote({ children }: { children: ReactNode }) {
+  return (
+    <div className="rounded-2xl border border-dashed border-anouma-dustyrose/50 bg-anouma-rose-pale/20 px-5 py-4 text-sm leading-relaxed text-anouma-plum">
+      <span className="font-medium">Platzhalter — noch zu ergänzen:</span> {children}
+    </div>
+  );
+}