release: alle hardcodierten IPs entfernt, Konfiguration via Env-Variablen und Auto-Discovery

frontend/src/components/AgentPanel.jsx

@@ -1166,7 +1166,7 @@ function WireGuardTab({ agentId, sys }) {
   const [peers, setPeers] = useState([])
   const [loading, setLoading] = useState(true)
   const [adding, setAdding] = useState(false)
-  const [newPeer, setNewPeer] = useState({ name: '', dns: '10.172.100.210, 10.172.100.220' })
+  const [newPeer, setNewPeer] = useState({ name: '', dns: '' })
   const [result, setResult] = useState(null)
   const [copied, setCopied] = useState(false)
   const [error, setError] = useState('')
@@ -1201,7 +1201,7 @@ function WireGuardTab({ agentId, sys }) {
       })
       setResult(resp?.data || resp)
       setAdding(false)
-      setNewPeer({ name: '', dns: '10.172.100.210, 10.172.100.220' })
+      setNewPeer({ name: '', dns: '' })
       loadPeers()
     } catch (e) {
       setError(e.message)

frontend/src/pages/SettingsPage.jsx

@@ -415,7 +415,7 @@ function SystemSettingsSection() {
             type="text"
             value={form.backend_url_internal || ''}
             onChange={(e) => setForm({ ...form, backend_url_internal: e.target.value })}
-            placeholder="https://192.168.85.13:8443"
+            placeholder="https://<BACKEND-IP>:8443"
             className="w-full bg-gray-800 border border-gray-700 rounded px-3 py-2 text-white text-sm focus:outline-none focus:border-orange-500 mt-1"
           />
           <div className="text-[10px] text-gray-600 mt-0.5">Fuer Tunnel-Zugriff und lokale Verbindungen</div>