Backup: export everything (hosts, groups, keys, passwords, snippets, forwards, VPNs, known hosts, history, settings), optionally encrypted with a password (scrypt + AES-256-GCM); import asks for the password, can merge or replace existing data and optionally restore settings; old backups still import; shared module for desktop, web and Android (src/core/backup.js)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/core/backend.js

@@ -12,6 +12,7 @@ const { DockerManager } = require('../main/docker');
 const { FirewallManager } = require('../main/firewall');
 const { NetworkConfigManager } = require('../main/network');
 const i18n = require('../i18n');
+const backup = require('./backup');
 
 function createBackend({ store, send, platform, version = '0.0.0', withSync = false, onLanguage = () => {} }) {
   // Rückfragen an die Oberfläche (Hostschlüssel, Passwörter, Kopplungscode)
@@ -107,11 +108,12 @@ function createBackend({ store, send, platform, version = '0.0.0', withSync = fa
   });
   handle('vault:settings', (s) => { store.setSettings(s); if ('language' in s) onLanguage(s.language); });
   handle('vault:forgetHost', (id) => store.forgetKnownHost(id));
-  handle('vault:exportData', () => publicData());
-  handle('vault:importData', (data) => {
-    for (const col of ['groups', 'hosts', 'keys', 'snippets', 'forwards', 'vpns'])
-      for (const item of data?.[col] || []) store.upsert(col, item);
-    return true;
+  handle('backup:export', (opts) => backup.createBackup(store, { ...opts, version }));
+  handle('backup:inspect', (content) => backup.inspectBackup(content));
+  handle('backup:import', (content, password, opts) => {
+    const r = backup.importBackup(store, content, password, opts);
+    if (opts?.settings) onLanguage(store.get().settings.language);
+    return r;
   });
   // entries: [{ folder: ['A','B'], host?: {...} }] – wie am Desktop (Import aus Remote Desktop Manager)
   handle('vault:bulkImport', (entries) => {