diff --git a/backend/nachrichten.js b/backend/nachrichten.js
deleted file mode 100644
index 063f6e0..0000000
--- a/backend/nachrichten.js
+++ /dev/null
@@ -1,168 +0,0 @@
-const express   = require('express');
-const webpush   = require('web-push');
-const db        = require('../db');
-const { authenticate } = require('../middleware/auth');
-const router    = express.Router();
-
-// ── VAPID-Setup (einmalig, in DB gespeichert) ─────────────────────────────────
-function getVapidKeys() {
-  const pub  = db.prepare("SELECT value FROM admin_settings WHERE key='vapid_public'").get();
-  const priv = db.prepare("SELECT value FROM admin_settings WHERE key='vapid_private'").get();
-  if (pub && priv) return { publicKey: pub.value, privateKey: priv.value };
-  const keys = webpush.generateVAPIDKeys();
-  db.prepare("INSERT OR REPLACE INTO admin_settings (key,value) VALUES ('vapid_public',?)").run(keys.publicKey);
-  db.prepare("INSERT OR REPLACE INTO admin_settings (key,value) VALUES ('vapid_private',?)").run(keys.privateKey);
-  return keys;
-}
-const vapid = getVapidKeys();
-webpush.setVapidDetails('mailto:admin@dickendock.local', vapid.publicKey, vapid.privateKey);
-
-// GET /vapid-key – öffentlicher VAPID-Schlüssel für den Browser
-router.get('/vapid-key', authenticate, (req, res) => {
-  res.json({ publicKey: vapid.publicKey });
-});
-
-// ── Öffentliche Schlüssel ─────────────────────────────────────────────────────
-// POST /keys – eigenen öffentlichen Schlüssel speichern
-router.post('/keys', authenticate, (req, res) => {
-  const { publicKey } = req.body;
-  if (!publicKey) return res.status(400).json({ error: 'Kein Schlüssel' });
-  db.prepare('INSERT OR REPLACE INTO user_keys (user_id,public_key,updated_at) VALUES (?,?,CURRENT_TIMESTAMP)').run(req.user.id, publicKey);
-  res.json({ success: true });
-});
-
-// GET /keys/:username – öffentlichen Schlüssel eines Users abrufen
-router.get('/keys/:username', authenticate, (req, res) => {
-  const user = db.prepare('SELECT id FROM users WHERE username=?').get(req.params.username);
-  if (!user) return res.status(404).json({ error: 'User nicht gefunden' });
-  const key = db.prepare('SELECT public_key FROM user_keys WHERE user_id=?').get(user.id);
-  if (!key) return res.status(404).json({ error: 'Noch kein Schlüssel hinterlegt' });
-  res.json({ publicKey: key.public_key });
-});
-
-// ── Push-Subscriptions ────────────────────────────────────────────────────────
-router.post('/subscribe', authenticate, (req, res) => {
-  const { endpoint, keys } = req.body;
-  if (!endpoint || !keys?.p256dh || !keys?.auth) return res.status(400).json({ error: 'Ungültige Subscription' });
-  db.prepare('INSERT OR REPLACE INTO push_subscriptions (user_id,endpoint,p256dh,auth) VALUES (?,?,?,?)')
-    .run(req.user.id, endpoint, keys.p256dh, keys.auth);
-  res.json({ success: true });
-});
-
-router.delete('/subscribe', authenticate, (req, res) => {
-  db.prepare('DELETE FROM push_subscriptions WHERE user_id=?').run(req.user.id);
-  res.json({ success: true });
-});
-
-// ── Nachrichten ───────────────────────────────────────────────────────────────
-// GET /conversations – alle Gesprächspartner mit ungelesener Anzahl
-router.get('/conversations', authenticate, (req, res) => {
-  const uid = req.user.id;
-  const convs = db.prepare(`
-    SELECT
-      CASE WHEN m.sender_id=? THEN m.recipient_id ELSE m.sender_id END AS partner_id,
-      u.username AS partner_name,
-      MAX(m.created_at) AS last_at,
-      COUNT(CASE WHEN m.recipient_id=? AND m.deleted_by_recipient=0 THEN 1 END) AS unread
-    FROM messages m
-    JOIN users u ON u.id=(CASE WHEN m.sender_id=? THEN m.recipient_id ELSE m.sender_id END)
-    WHERE (m.sender_id=? AND m.deleted_by_sender=0)
-       OR (m.recipient_id=? AND m.deleted_by_recipient=0)
-    GROUP BY partner_id
-    ORDER BY last_at DESC
-  `).all(uid, uid, uid, uid, uid);
-  res.json(convs);
-});
-
-// GET /unread-count – Gesamtanzahl ungelesener Nachrichten
-router.get('/unread-count', authenticate, (req, res) => {
-  const count = db.prepare('SELECT COUNT(*) c FROM messages WHERE recipient_id=? AND deleted_by_recipient=0').get(req.user.id).c;
-  res.json({ count });
-});
-
-// GET /with/:username – Nachrichten mit einem User
-router.get('/with/:username', authenticate, (req, res) => {
-  const uid     = req.user.id;
-  const partner = db.prepare('SELECT id FROM users WHERE username=?').get(req.params.username);
-  if (!partner) return res.status(404).json({ error: 'User nicht gefunden' });
-  const msgs = db.prepare(`
-    SELECT m.id, m.sender_id, m.encrypted_content, m.iv, m.created_at,
-      s.username AS sender_name
-    FROM messages m
-    JOIN users s ON s.id=m.sender_id
-    WHERE ((m.sender_id=? AND m.recipient_id=? AND m.deleted_by_sender=0)
-        OR (m.sender_id=? AND m.recipient_id=? AND m.deleted_by_recipient=0))
-    ORDER BY m.created_at ASC
-  `).all(uid, partner.id, partner.id, uid);
-  res.json(msgs);
-});
-
-// GET /users – alle User außer sich selbst (für neues Gespräch)
-router.get('/users', authenticate, (req, res) => {
-  const users = db.prepare('SELECT id,username FROM users WHERE id!=? ORDER BY username').all(req.user.id);
-  res.json(users);
-});
-
-// POST /send – verschlüsselte Nachricht senden
-router.post('/send', authenticate, async (req, res) => {
-  const { recipient_username, encrypted_content, iv } = req.body;
-  if (!recipient_username || !encrypted_content || !iv)
-    return res.status(400).json({ error: 'Fehlende Felder' });
-  const recipient = db.prepare('SELECT id FROM users WHERE username=?').get(recipient_username);
-  if (!recipient) return res.status(404).json({ error: 'Empfänger nicht gefunden' });
-
-  const r = db.prepare('INSERT INTO messages (sender_id,recipient_id,encrypted_content,iv) VALUES (?,?,?,?)')
-    .run(req.user.id, recipient.id, encrypted_content, iv);
-
-  // Push-Benachrichtigung an Empfänger
-  const subs = db.prepare('SELECT * FROM push_subscriptions WHERE user_id=?').all(recipient.id);
-  const sender = db.prepare('SELECT username FROM users WHERE id=?').get(req.user.id);
-  for (const sub of subs) {
-    try {
-      await webpush.sendNotification(
-        { endpoint: sub.endpoint, keys: { p256dh: sub.p256dh, auth: sub.auth } },
-        JSON.stringify({ title: `Nachricht von ${sender.username}`, body: '🔒 Verschlüsselte Nachricht', icon: '/favicon.svg' })
-      );
-    } catch(e) {
-      if (e.statusCode === 410) db.prepare('DELETE FROM push_subscriptions WHERE endpoint=?').run(sub.endpoint);
-    }
-  }
-
-  res.json({ id: r.lastInsertRowid, success: true });
-});
-
-// DELETE /:id – Nachricht für sich löschen
-router.delete('/:id', authenticate, (req, res) => {
-  const uid = req.user.id;
-  const msg = db.prepare('SELECT * FROM messages WHERE id=?').get(req.params.id);
-  if (!msg) return res.status(404).json({ error: 'Nicht gefunden' });
-  if (msg.sender_id !== uid && msg.recipient_id !== uid)
-    return res.status(403).json({ error: 'Kein Zugriff' });
-
-  if (msg.sender_id === uid) db.prepare('UPDATE messages SET deleted_by_sender=1 WHERE id=?').run(msg.id);
-  else db.prepare('UPDATE messages SET deleted_by_recipient=1 WHERE id=?').run(msg.id);
-
-  // Wenn beide gelöscht → komplett entfernen
-  const updated = db.prepare('SELECT * FROM messages WHERE id=?').get(msg.id);
-  if (updated?.deleted_by_sender && updated?.deleted_by_recipient)
-    db.prepare('DELETE FROM messages WHERE id=?').run(msg.id);
-
-  res.json({ success: true });
-});
-
-// DELETE /conversation/:username – ganzes Gespräch für sich löschen
-router.delete('/conversation/:username', authenticate, (req, res) => {
-  const uid     = req.user.id;
-  const partner = db.prepare('SELECT id FROM users WHERE username=?').get(req.params.username);
-  if (!partner) return res.status(404).json({ error: 'User nicht gefunden' });
-
-  db.prepare('UPDATE messages SET deleted_by_sender=1 WHERE sender_id=? AND recipient_id=?').run(uid, partner.id);
-  db.prepare('UPDATE messages SET deleted_by_recipient=1 WHERE recipient_id=? AND sender_id=?').run(uid, partner.id);
-  // Komplett löschen wenn beide weg
-  db.prepare('DELETE FROM messages WHERE sender_id IN (?,?) AND recipient_id IN (?,?) AND deleted_by_sender=1 AND deleted_by_recipient=1')
-    .run(uid, partner.id, uid, partner.id);
-
-  res.json({ success: true });
-});
-
-module.exports = router;