docker-mailserver LXC für Proxmox: Stack + Admin-UI + Webmail + Hardening

- dms-lxc.sh: Proxmox-Host-Installer (unprivilegierter LXC, Debian 13, Docker),
  curl-Self-Download, Multi-Domain-DKIM, SnappyMail-Provisionierung, PVE-Firewall
- Stack: docker-mailserver, Node-Admin-API (Supabase-Auth), React-Admin-UI
  (OPENBUREAU-Look), SnappyMail (Shibui-Theme), Rspamd-Web-UI, docker-socket-proxy
- Admin: Postfächer/Aliase/Catch-all/Quota, editierbare Domains+Settings,
  Server (Quota/Queue über abgesicherte Bridge), Status & DNS
- Hardening: no-new-privileges, Whitelisted exec-Bridge, Rspamd-Passwort,
  .env chmod 600, PVE-CT-Firewall, generisch/teilbar (keine festen Domains)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

stack/admin/vite.config.js

@@ -0,0 +1,19 @@
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react';
+
+// In der Produktion serviert nginx die statischen Dateien und proxyt /api
+// an den admin-api Container. Im Dev-Modus proxyen wir /api lokal.
+export default defineConfig({
+  plugins: [react()],
+  base: '/',
+  server: {
+    port: 5173,
+    proxy: {
+      '/api': {
+        target: 'http://localhost:3000',
+        changeOrigin: true,
+        rewrite: (p) => p.replace(/^\/api/, ''),
+      },
+    },
+  },
+});