Version 0.19.0

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

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "mrterm",
-  "version": "0.16.0",
+  "version": "0.19.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "mrterm",
-      "version": "0.16.0",
+      "version": "0.19.0",
       "license": "MIT",
       "dependencies": {
         "@xterm/addon-fit": "^0.11.0",

package.json

@@ -1,7 +1,7 @@
 {
   "name": "mrterm",
   "productName": "MrTerm",
-  "version": "0.16.0",
+  "version": "0.19.0",
   "description": "Moderner SSH-, SFTP- und RDP-Client",
   "main": "src/main/main.js",
   "author": "MrBlake",
@@ -53,6 +53,7 @@
     "directories": {
       "buildResources": "build"
     },
+    "beforePack": "scripts/ensure-koffi.js",
     "asarUnpack": [
       "node_modules/koffi/**",
       "node_modules/@koromix/**"

scripts/ensure-koffi.js

@@ -0,0 +1,19 @@
+// electron-builder beforePack: stellt sicher, dass die native koffi-Binary der Zielplattform in node_modules liegt.
+// npm installiert nur die Binary der Build-Plattform – beim Cross-Build (z. B. Windows-Paket auf Linux) fehlt sie sonst,
+// und RDP im Tab fällt mit "koffi nicht verfügbar" auf ein externes Fenster zurück.
+const fs = require('fs');
+const path = require('path');
+const { execSync } = require('child_process');
+const { Arch } = require('electron-builder');
+
+module.exports = async (context) => {
+  const platform = context.electronPlatformName;
+  const arch = Arch[context.arch];
+  const pkg = `@koromix/koffi-${platform}-${arch}`;
+  const root = path.join(__dirname, '..');
+  if (fs.existsSync(path.join(root, 'node_modules', pkg))) return;
+  const { version } = require(path.join(root, 'node_modules', 'koffi', 'package.json'));
+  console.log(`  • koffi-Binary für ${platform}-${arch} fehlt – installiere ${pkg}@${version}`);
+  execSync(`npm install --no-save --force ${pkg}@${version}`, { cwd: root, stdio: 'inherit' });
+  if (!fs.existsSync(path.join(root, 'node_modules', pkg))) throw new Error(`${pkg} konnte nicht installiert werden`);
+};

src/core/backend.js

@@ -11,6 +11,7 @@ const { SshManager } = require('../main/ssh');
 const { DockerManager } = require('../main/docker');
 const { FirewallManager } = require('../main/firewall');
 const { NetworkConfigManager } = require('../main/network');
+const { AiAssistant } = require('../main/ai');
 const i18n = require('../i18n');
 const backup = require('./backup');
 const composeTemplates = require('../main/compose-templates');
@@ -34,6 +35,7 @@ function createBackend({ store, send, platform, version = '0.0.0', withSync = fa
   const docker = new DockerManager(ssh);
   const firewall = new FirewallManager(ssh);
   const network = new NetworkConfigManager(ssh);
+  const ai = new AiAssistant(store, send);
   let sync = null;
   if (withSync) {
     const { SyncService } = require('../main/sync');
@@ -206,6 +208,11 @@ function createBackend({ store, send, platform, version = '0.0.0', withSync = fa
   handle('network:writeFile', (id, path, content, verify) => network.writeFile(id, path, content, verify));
   handle('network:close', (id) => network.close(id));
 
+  // ---------- Support-Assistent (Ollama) ----------
+  handle('ai:models', (url) => ai.models(url));
+  handle('ai:chat', (id, messages, context) => ai.chat(id, messages, context));
+  handle('ai:stop', (id) => ai.stop(id));
+
   // ---------- Synchronisation ----------
   if (sync) {
     handle('sync:status', () => sync.status());
@@ -221,6 +228,7 @@ function createBackend({ store, send, platform, version = '0.0.0', withSync = fa
 
   function close() {
     ssh.closeAll?.();
+    ai.stopAll();
     sync?.stop();
     for (const r of pending.values()) r(null);
     pending.clear();

src/i18n.js

@@ -151,6 +151,35 @@
     'Send Enter automatically': 'Enter automatisch senden',
     'Command is missing.': 'Befehl fehlt.',
     'No open terminal': 'Kein offenes Terminal',
+    // Support-Assistent
+    'Delete chat': 'Chat löschen',
+    'Delete chat?': 'Chat löschen?',
+    'Saved chats': 'Gespeicherte Chats',
+    'Context:': 'Kontext:',
+    'Vault (no context)': 'Tresor (kein Kontext)',
+    'Explain this tab': 'Diesen Tab erklären',
+    'Look at the active tab, explain what you see and point out problems.': 'Sieh dir den aktiven Tab an, erkläre, was du siehst, und weise auf Probleme hin.',
+    'The content of the active tab is sent to the Ollama server.': 'Der Inhalt des aktiven Tabs wird an den Ollama-Server gesendet.',
+    'Ask about an error or let the assistant explain what you see. The content of the active tab is sent as context.': 'Frag nach einem Fehler oder lass dir erklären, was du siehst. Der Inhalt des aktiven Tabs wird als Kontext mitgesendet.',
+    'Copied – no terminal tab is active': 'Kopiert – kein Terminal-Tab aktiv',
+    'Helps with errors in the Linux console, Docker, firewall and network via a local <b>Ollama</b> instance. Open it with the chat button in the title bar or in a tab. The content of the active tab is sent to the Ollama server as context. Chats are stored in the vault.': 'Hilft bei Fehlern in Linux-Konsole, Docker, Firewall und Netzwerk über eine lokale <b>Ollama</b>-Instanz. Öffnen über den Chat-Button in der Titelleiste oder im Tab. Der Inhalt des aktiven Tabs wird als Kontext an den Ollama-Server gesendet. Chats werden im Tresor gespeichert.',
+    'Support assistant (Ollama)': 'Support-Assistent (Ollama)',
+    'Assistant': 'Assistent',
+    'Support assistant': 'Support-Assistent',
+    'New chat': 'Neuer Chat',
+    'Include terminal output': 'Terminalausgabe mitsenden',
+    'Describe the problem … (Enter = send)': 'Problem beschreiben … (Enter = senden)',
+    'Explain last error': 'Letzten Fehler erklären',
+    'Send': 'Senden',
+    'Explain the last error in the terminal output and how to fix it.': 'Erkläre den letzten Fehler in der Terminalausgabe und wie ich ihn behebe.',
+    'Please select an Ollama model in the settings first.': 'Bitte zuerst in den Einstellungen ein Ollama-Modell auswählen.',
+    'Insert into terminal (not executed)': 'Ins Terminal einfügen (wird nicht ausgeführt)',
+    'Insert': 'Einfügen',
+    'Ollama server': 'Ollama-Server',
+    'Model': 'Modell',
+    '– select –': '– auswählen –',
+    'No models installed (ollama pull …)': 'Keine Modelle installiert (ollama pull …)',
+    'Load models': 'Modelle laden',
     'No snippets yet.': 'Noch keine Snippets.',
 
     // Port Forwarding
@@ -277,6 +306,7 @@
     'Connecting to {host} … Login or certificate prompts may appear in a separate window.': 'Verbinde mit {host} … Anmelde- oder Zertifikatsabfragen erscheinen ggf. als eigenes Fenster.',
     'The RDP window could not be embedded.': 'Das RDP-Fenster konnte nicht eingebettet werden.',
     'RDP session ended.': 'RDP-Sitzung beendet.',
+    'Adjusting resolution …': 'Auflösung wird angepasst …',
     'RDP session ended (code {code}).': 'RDP-Sitzung beendet (Code {code}).',
     'Session continues in a separate window': 'Sitzung läuft als eigenes Fenster weiter',
 

src/main/ai.js

@@ -0,0 +1,93 @@
+// Support-Assistent über eine Ollama-Instanz (lokal oder im Netz).
+// Antworten werden gestreamt: send('ai:event', chatId, 'data' | 'done' | 'error', payload)
+const http = require('http');
+const https = require('https');
+
+const SYSTEM_PROMPT = `You are the MrTerm support assistant, an experienced Linux system administrator.
+The user manages Linux servers (typically Ubuntu, Debian or Proxmox) with MrTerm: SSH terminals, Docker containers
+and compose stacks, firewall (UFW/iptables), network configuration and SFTP.
+You may receive the content of the user's active MrTerm tab as context (terminal output, container list, compose file,
+firewall rules, …). Your job:
+- Explain errors briefly and clearly, name the most likely cause.
+- Suggest concrete, copy-pasteable shell commands in \`\`\`bash code blocks, one step at a time.
+- Warn explicitly before destructive commands (rm -rf, dd, mkfs, firewall changes that may lock out SSH, network changes).
+- If information is missing, say which command would provide it.
+Answer in the language of the user's question. Be concise.`;
+
+function request(base, path, { method = 'GET', body, signal } = {}) {
+  const url = new URL(path, base.endsWith('/') ? base : base + '/');
+  const lib = url.protocol === 'https:' ? https : http;
+  return new Promise((resolve, reject) => {
+    const req = lib.request(url, { method, headers: body ? { 'Content-Type': 'application/json' } : {}, signal, timeout: 15000 }, (res) => {
+      if (res.statusCode >= 400) {
+        let t = ''; res.on('data', (c) => (t += c));
+        res.on('end', () => { let m = t; try { m = JSON.parse(t).error || t; } catch {} reject(new Error(`Ollama: ${m || res.statusCode}`)); });
+        return;
+      }
+      resolve(res);
+    });
+    req.on('timeout', () => req.destroy(new Error('Ollama: timeout')));
+    req.on('error', (e) => reject(e.code === 'ECONNREFUSED' ? new Error(`Ollama not reachable at ${base}`) : e));
+    if (body) req.write(JSON.stringify(body));
+    req.end();
+  });
+}
+
+class AiAssistant {
+  constructor(store, send) {
+    this.store = store;
+    this.send = send;
+    this.running = new Map();
+  }
+
+  get cfg() {
+    const s = this.store.get().settings;
+    return { url: s.aiUrl || 'http://localhost:11434', model: s.aiModel || '' };
+  }
+
+  async models(url) {
+    const res = await request(url || this.cfg.url, 'api/tags');
+    let t = ''; for await (const c of res) t += c;
+    return (JSON.parse(t).models || []).map((m) => m.name);
+  }
+
+  // messages: [{ role: 'user' | 'assistant', content }], context: letzte Terminalausgabe
+  async chat(chatId, messages, context = '') {
+    const { url, model } = this.cfg;
+    if (!model) throw new Error('No Ollama model selected (Settings → Support assistant).');
+    this.stop(chatId);
+    const ctrl = new AbortController();
+    this.running.set(chatId, ctrl);
+    const sys = SYSTEM_PROMPT + (context ? `\n\nContent of the active tab:\n\`\`\`\n${context.slice(-12000)}\n\`\`\`` : '');
+    (async () => {
+      try {
+        const res = await request(url, 'api/chat', { method: 'POST', signal: ctrl.signal, body: { model, stream: true, messages: [{ role: 'system', content: sys }, ...messages] } });
+        res.setTimeout(0);
+        let buf = '';
+        for await (const chunk of res) {
+          buf += chunk;
+          let i;
+          while ((i = buf.indexOf('\n')) >= 0) {
+            const line = buf.slice(0, i).trim(); buf = buf.slice(i + 1);
+            if (!line) continue;
+            const m = JSON.parse(line);
+            if (m.error) throw new Error(`Ollama: ${m.error}`);
+            if (m.message?.content) this.send('ai:event', chatId, 'data', m.message.content);
+          }
+        }
+        this.send('ai:event', chatId, 'done');
+      } catch (e) {
+        if (ctrl.signal.aborted) this.send('ai:event', chatId, 'done');
+        else this.send('ai:event', chatId, 'error', e.message || String(e));
+      } finally {
+        if (this.running.get(chatId) === ctrl) this.running.delete(chatId);
+      }
+    })();
+    return true;
+  }
+
+  stop(chatId) { this.running.get(chatId)?.abort(); this.running.delete(chatId); }
+  stopAll() { for (const c of this.running.values()) c.abort(); this.running.clear(); }
+}
+
+module.exports = { AiAssistant };

src/main/docker.js

@@ -164,7 +164,10 @@ class DockerManager {
   async readStack(id, file) {
     const s = this.get(id);
     const f = absPath(file);
-    const r = await this.sh(s, `cat ${q(f)} && printf '\\n\\0' && { cat ${q(dirname(f) + '/.env')} 2>/dev/null || true; }`);
+    // .env wird mit umask 077 geschrieben – beim Speichern per sudo gehört sie root. Dann scheitert cat mit
+    // „Permission denied“ und sh() wiederholt das Lesen per sudo (vorher wurde der Fehler verschluckt).
+    const env = q(dirname(f) + '/.env');
+    const r = await this.sh(s, `cat ${q(f)} && printf '\\n\\0' && { [ ! -e ${env} ] || cat ${env}; }`);
     if (r.code) throw new Error(lastLine(r.err) || i18n.t('Could not read {file}', { file: f }));
     const i = r.out.lastIndexOf('\n\0');
     return { compose: r.out.slice(0, i), env: r.out.slice(i + 2) };

src/main/main.js

@@ -18,6 +18,7 @@ const { NetworkConfigManager } = require('./network');
 const { SyncService } = require('./sync');
 const backup = require('../core/backup');
 const composeTemplates = require('./compose-templates');
+const { AiAssistant } = require('./ai');
 const applyLanguage = () => i18n.setLanguage(store.get().settings.language, app.getLocale());
 
 let win;
@@ -77,6 +78,7 @@ const vpn = new VpnManager(store, app.getPath('userData'));
 const docker = new DockerManager(ssh);
 const firewall = new FirewallManager(ssh);
 const network = new NetworkConfigManager(ssh);
+const ai = new AiAssistant(store, send);
 
 // LAN-Synchronisation; Vergleichscode beim Koppeln bestätigt der Nutzer in der Oberfläche
 const pairReplies = new Map();
@@ -278,6 +280,11 @@ handle('sync:share', (sel) => sync.setShare(sel));
 handle('sync:shareItem', (c, id, yes) => sync.shareItem(c, id, yes));
 handle('sync:probe', (address) => sync.probe(address));
 
+// ---------- Support-Assistent (Ollama) ----------
+handle('ai:models', (url) => ai.models(url));
+handle('ai:chat', (id, messages, context) => ai.chat(id, messages, context));
+handle('ai:stop', (id) => ai.stop(id));
+
 // ---------- VPN ----------
 handle('vpn:status', () => vpn.status());
 handle('vpn:up', (id) => vpn.up(id));
@@ -466,30 +473,46 @@ handle('rdp:open', async (id, hostRef, bounds) => {
   const host = hostWithOverrides(hostRef);
   if (host.id) store.addHistory({ hostId: host.id, at: Date.now() });
   if (await vpn.ensureForHost(host)) send('vpn:changed');
-  const emb = createEmbed(win.getNativeWindowHandle());
+  const sess = { cancelled: false };
-  const sess = { emb, cancelled: false };
   rdpSessions.set(id, sess);
+  return startRdpEmbed(id, sess, host, bounds);
+});
+async function startRdpEmbed(id, sess, host, bounds, acceptCert = false) {
+  const emb = createEmbed(win.getNativeWindowHandle());
+  emb.acceptCert = acceptCert;
+  sess.emb = emb;
   const size = { width: bounds.width, height: bounds.height };
   let proc;
   if (process.platform === 'win32') {
-    const file = rdp.writeRdpFile(host, size);
+    const args = rdp.mstscArgs(host, size);
-    proc = await new Promise((resolve) => rdp.withWinCredentials(host, () => resolve(emb.start({ rdpFile: file }))));
+    proc = await new Promise((resolve) => rdp.withWinCredentials(host, () => resolve(emb.start({ args }))));
   } else {
     proc = emb.start({ client: rdp.linuxClient(null, true), args: rdp.freerdpArgs(host, size), password: host.password });
   }
-  proc.on('error', (e) => send('rdp:event', id, 'exit', { code: -1, message: e.message }));
+  const current = () => rdpSessions.get(id) === sess && sess.emb === emb;
+  proc.on('error', (e) => { if (current()) send('rdp:event', id, 'exit', { code: -1, message: e.message }); });
   proc.on('exit', (code) => {
+    if (!current()) return; // durch Neuverbindung ersetzt
     const err = (emb.err || '').split('\n').filter((l) => /ERROR|error/.test(l)).slice(-1)[0] || '';
-    if (rdpSessions.get(id) === sess) send('rdp:event', id, 'exit', { code, message: err });
+    send('rdp:event', id, 'exit', { code, message: err });
     rdpSessions.delete(id);
   });
-  const ok = await emb.attach(bounds, () => sess.cancelled);
+  // Server ohne dynamische Auflösung: mit neuer Größe neu verbinden (die Sitzung auf dem Server bleibt erhalten)
-  if (ok) {
+  emb.onResizeNeeded = (b) => {
+    if (!current()) return;
+    send('rdp:event', id, 'resizing');
+    emb.kill();
+    startRdpEmbed(id, sess, host, b, emb.certAccepted).then((ok) => {
+      if (!ok && rdpSessions.get(id) === sess && !sess.cancelled) send('rdp:event', id, 'exit', { code: -1, message: '' });
+    });
+  };
+  const ok = await emb.attach(bounds, () => sess.cancelled || !current());
+  if (ok && current()) {
     if (sess.hidden) emb.hide();
     send('rdp:event', id, 'attached');
   }
   return ok;
-});
+}
 ipcMain.on('rdp:bounds', (_e, id, b) => { try { rdpSessions.get(id)?.emb.setBounds(b); } catch {} });
 ipcMain.on('rdp:show', (_e, id) => { const s = rdpSessions.get(id); if (s) { s.hidden = false; try { s.emb.show(); s.emb.focus(); } catch {} } });
 ipcMain.on('rdp:hide', (_e, id) => { const s = rdpSessions.get(id); if (s) { s.hidden = true; try { s.emb.hide(); } catch {} } });

src/main/rdp-embed.js

@@ -1,5 +1,5 @@
 // Bettet externe RDP-Clients als Kindfenster in das MrTerm-Fenster ein (Anzeige im Tab).
-//   Windows: mstsc.exe wird gestartet, sein Hauptfenster (TscShellContainerClass) per SetParent eingehängt.
+//   Windows: mstsc.exe wird gestartet, sein Sitzungsfenster (TscShellContainerClass) rahmenlos über den Tab gelegt.
 //   Linux:   FreeRDP mit /parent-window:<XID>, Position/Größe/Sichtbarkeit über libX11 (MrTerm läuft dafür unter X11/XWayland).
 // Alle Koordinaten sind physische Pixel relativ zum Client-Bereich des MrTerm-Fensters.
 const { spawn } = require('child_process');
@@ -12,13 +12,25 @@ const i18n = require('../i18n');
 // Chromium zeichnet per DirectComposition über alle nativen Kindfenster – ein per SetParent eingehängtes
 // mstsc bliebe unsichtbar (schwarz). Stattdessen wird das Sitzungsfenster rahmenlos und als "owned window"
 // von MrTerm exakt über den Tab gelegt: Es liegt immer über MrTerm, minimiert sich mit und hat keinen Taskleisten-Eintrag.
+// Mit "dynamic resolution" passt mstsc die Auflösung der Sitzung an, sobald sich die Fenstergröße ändert.
 function winApi() {
   if (winApi.api) return winApi.api;
   const u = koffi.load('user32.dll');
   const EnumProc = koffi.proto('bool __stdcall MrTermEnumProc(intptr hwnd, intptr lParam)');
+  const WinEventProc = koffi.proto('void __stdcall MrTermWinEventProc(intptr hook, uint32 event, intptr hwnd, long idObject, long idChild, uint32 thread, uint32 time)');
   const POINT = koffi.struct('MrTermPOINT', { x: 'int', y: 'int' });
+  const RECT = koffi.struct('MrTermRECT', { left: 'int', top: 'int', right: 'int', bottom: 'int' });
   winApi.api = {
     EnumWindows: u.func('bool __stdcall EnumWindows(MrTermEnumProc *cb, intptr lParam)'),
+    EnumChildWindows: u.func('bool __stdcall EnumChildWindows(intptr hwnd, MrTermEnumProc *cb, intptr lParam)'),
+    SetWinEventHook: u.func('intptr __stdcall SetWinEventHook(uint32 min, uint32 max, intptr mod, MrTermWinEventProc *cb, uint32 pid, uint32 tid, uint32 flags)'),
+    UnhookWinEvent: u.func('bool __stdcall UnhookWinEvent(intptr hook)'),
+    GetDlgItem: u.func('intptr __stdcall GetDlgItem(intptr hwnd, int id)'),
+    PostMessageW: u.func('bool __stdcall PostMessageW(intptr hwnd, uint32 msg, uintptr w, intptr l)'),
+    GetAncestor: u.func('intptr __stdcall GetAncestor(intptr hwnd, uint32 flags)'),
+    GetWindowRect: u.func('bool __stdcall GetWindowRect(intptr hwnd, _Out_ MrTermRECT *rect)'),
+    SetLayeredWindowAttributes: u.func('bool __stdcall SetLayeredWindowAttributes(intptr hwnd, uint32 key, uint8 alpha, uint32 flags)'),
+    WinEventProc,
     GetWindowThreadProcessId: u.func('uint32 __stdcall GetWindowThreadProcessId(intptr hwnd, _Out_ uint32 *pid)'),
     GetClassNameW: u.func('int __stdcall GetClassNameW(intptr hwnd, void *buf, int max)'),
     IsWindowVisible: u.func('bool __stdcall IsWindowVisible(intptr hwnd)'),
@@ -34,58 +46,143 @@ function winApi() {
   return winApi.api;
 }
 
-function findWindowsOfPid(pid, cls) {
+const buf = Buffer.alloc(512);
-  const api = winApi();
+const className = (hwnd) => buf.toString('utf16le', 0, winApi().GetClassNameW(hwnd, buf, 256) * 2);
-  const out = [];
+function childClasses(hwnd) {
-  const buf = Buffer.alloc(512);
+  const out = new Set();
-  api.EnumWindows((hwnd) => {
+  winApi().EnumChildWindows(hwnd, (c) => { out.add(className(c)); return true; }, 0);
-    const p = [0];
-    api.GetWindowThreadProcessId(hwnd, p);
-    if (p[0] === pid && api.IsWindowVisible(hwnd)) {
-      const n = api.GetClassNameW(hwnd, buf, 256);
-      if (!cls || buf.toString('utf16le', 0, n * 2) === cls) out.push(hwnd);
-    }
-    return true;
-  }, 0);
   return out;
 }
 
 const GWL_STYLE = -16, GWL_EXSTYLE = -20, GWLP_HWNDPARENT = -8;
 const WS_CHILD = 0x40000000, WS_POPUP = 0x80000000, WS_CAPTION = 0x00c00000, WS_THICKFRAME = 0x00040000;
 const WS_SYSMENU = 0x00080000, WS_MINIMIZEBOX = 0x00020000, WS_MAXIMIZEBOX = 0x00010000;
-const WS_EX_APPWINDOW = 0x00040000, WS_EX_TOOLWINDOW = 0x00000080;
+const WS_EX_APPWINDOW = 0x00040000, WS_EX_TOOLWINDOW = 0x00000080, WS_EX_LAYERED = 0x00080000;
 const FRAME = WS_CAPTION | WS_THICKFRAME | WS_SYSMENU | WS_MINIMIZEBOX | WS_MAXIMIZEBOX;
-const SWP_NOZORDER = 0x4, SWP_NOACTIVATE = 0x10, SWP_FRAMECHANGED = 0x20, SWP_SHOWWINDOW = 0x40;
+const SWP_NOSIZE = 0x1, SWP_NOZORDER = 0x4, SWP_NOACTIVATE = 0x10, SWP_FRAMECHANGED = 0x20, SWP_SHOWWINDOW = 0x40;
 const SW_HIDE = 0, SW_SHOWNOACTIVATE = 4, SW_SHOW = 5;
+const EVENT_OBJECT_CREATE = 0x8000, EVENT_OBJECT_SHOW = 0x8002, WINEVENT_OUTOFCONTEXT = 0, GA_ROOT = 2, LWA_ALPHA = 2;
+const BM_CLICK = 0xf5, ID_CERT_YES = 14004, ID_CERT_VIEW = 13443; // Zertifikatswarnung von mstsc: "Ja", "Zertifikat anzeigen"
 
 class WinEmbed {
-  constructor(parentHandle) { this.parent = Number(parentHandle.readBigUInt64LE(0)); this.cls = 'TscShellContainerClass'; this.visible = true; }
+  constructor(parentHandle) { this.parent = Number(parentHandle.readBigUInt64LE(0)); this.visible = true; }
 
-  start({ rdpFile }) {
+  // args: mstsc-Kommandozeile. Mit /v:… statt .rdp-Datei zeigt mstsc keine Sicherheitswarnung "Unbekannter Herausgeber".
-    this.proc = spawn('mstsc.exe', rdpFile ? [rdpFile] : [], { stdio: 'ignore' });
+  start({ args }) {
+    this.proc = spawn('mstsc.exe', args, { stdio: 'ignore' });
+    this.hookWindows();
+    this.proc.on('exit', () => this.unhook());
     return this.proc;
   }
 
-  // Wartet, bis mstsc sein Sitzungsfenster geöffnet hat (Anmelde-/Zertifikatsdialoge davor bleiben eigene Fenster)
+  // Fängt die Fenster von mstsc ab, sobald sie entstehen (läuft über die Nachrichtenschleife des Electron-Hauptthreads):
-  async attach(bounds, isCancelled) {
+  //   Sitzungsfenster  -> noch unsichtbar rahmenlos über den Tab legen, damit nie ein normales mstsc-Fenster aufblitzt
-    const t0 = Date.now();
+  //   "Verbindung wird hergestellt" (Dialog mit Fortschrittsbalken) -> unsichtbar lassen, der Tab zeigt den Status selbst
-    while (Date.now() - t0 < 120000) {
+  //   andere Dialoge (Zertifikat, Fehler) -> brauchen eine Entscheidung, daher mittig über dem Tab einblenden
-      if (isCancelled() || this.proc.exitCode !== null) return false;
+  hookWindows() {
-      const [hwnd] = findWindowsOfPid(this.proc.pid, this.cls);
-      if (hwnd) {
     const api = winApi();
+    this.cb = koffi.register((_hook, event, hwnd, idObject, idChild) => {
+      try {
+        if (idObject !== 0 || idChild !== 0 || Number(api.GetAncestor(hwnd, GA_ROOT)) !== Number(hwnd)) return;
+        const cls = className(hwnd);
+        if (cls === 'TscShellContainerClass') {
+          if (event === EVENT_OBJECT_CREATE || !this.hwnd) this.adopt(hwnd);
+          if (event === EVENT_OBJECT_SHOW) this.onSessionShown();
+        } else if (cls === '#32770') {
+          const isCert = () => api.GetDlgItem(hwnd, ID_CERT_YES) && api.GetDlgItem(hwnd, ID_CERT_VIEW);
+          if (event === EVENT_OBJECT_CREATE) this.setAlpha(hwnd, 0);
+          else if (childClasses(hwnd).has('msctls_progress32')) api.ShowWindow(hwnd, SW_HIDE);
+          else if (this.acceptCert && isCert()) api.PostMessageW(api.GetDlgItem(hwnd, ID_CERT_YES), BM_CLICK, 0, 0);
+          else { if (isCert()) this.certPrompted = true; this.presentDialog(hwnd); }
+        }
+      } catch { /* Fenster kann bereits wieder zu sein */ }
+    }, koffi.pointer(api.WinEventProc));
+    this.hook = api.SetWinEventHook(EVENT_OBJECT_CREATE, EVENT_OBJECT_SHOW, 0, this.cb, this.proc.pid, 0, WINEVENT_OUTOFCONTEXT);
+  }
+
+  unhook() {
+    if (this.hook) { winApi().UnhookWinEvent(this.hook); this.hook = null; }
+    if (this.cb) { koffi.unregister(this.cb); this.cb = null; }
+  }
+
+  setAlpha(hwnd, alpha) {
+    const api = winApi();
+    api.SetWindowLongPtrW(hwnd, GWL_EXSTYLE, ((Number(api.GetWindowLongPtrW(hwnd, GWL_EXSTYLE)) >>> 0) | WS_EX_LAYERED) >>> 0);
+    api.SetLayeredWindowAttributes(hwnd, 0, alpha, LWA_ALPHA);
+  }
+
+  presentDialog(hwnd) {
+    const api = winApi();
+    api.SetWindowLongPtrW(hwnd, GWLP_HWNDPARENT, this.parent);
+    const r = {};
+    api.GetWindowRect(hwnd, r);
+    const b = this.bounds || { x: 0, y: 0, width: 0, height: 0 };
+    const pt = { x: b.x + Math.round((b.width - (r.right - r.left)) / 2), y: b.y + Math.round((b.height - (r.bottom - r.top)) / 2) };
+    api.ClientToScreen(this.parent, pt);
+    api.SetWindowPos(hwnd, 0, pt.x, pt.y, 0, 0, SWP_NOSIZE | SWP_NOZORDER);
+    this.setAlpha(hwnd, 255);
+    api.SetForegroundWindow(hwnd);
+  }
+
+  // Sitzungsfenster rahmenlos und ohne Taskleisten-Eintrag als "owned window" von MrTerm
+  adopt(hwnd) {
+    const api = winApi();
+    this.hwnd = hwnd;
     const style = (((Number(api.GetWindowLongPtrW(hwnd, GWL_STYLE)) >>> 0) & ~(FRAME | WS_CHILD)) | WS_POPUP) >>> 0;
     api.SetWindowLongPtrW(hwnd, GWL_STYLE, style);
     const ex = ((((Number(api.GetWindowLongPtrW(hwnd, GWL_EXSTYLE)) >>> 0) & ~WS_EX_APPWINDOW) | WS_EX_TOOLWINDOW) >>> 0);
     api.SetWindowLongPtrW(hwnd, GWL_EXSTYLE, ex);
-        api.SetWindowLongPtrW(hwnd, GWLP_HWNDPARENT, this.parent); // Besitzer = MrTerm
+    api.SetWindowLongPtrW(hwnd, GWLP_HWNDPARENT, this.parent);
-        this.hwnd = hwnd;
+    // Bis zur Anmeldung außerhalb des Bildschirms parken: mstsc zentriert seine Dialoge über diesem Fenster,
-        this.setBounds(bounds);
+    // so bleibt auch "Verbindung wird hergestellt" unsichtbar, bevor der Hook ihn ausblenden kann.
-        return true;
+    if (!this.connected) api.SetWindowPos(hwnd, 0, -32000, -32000, this.bounds?.width || 800, this.bounds?.height || 600, SWP_NOZORDER | SWP_NOACTIVATE | SWP_FRAMECHANGED);
   }
-      await new Promise((r) => setTimeout(r, 250));
+
+  // mstsc blendet das Sitzungsfenster erst nach erfolgreicher Anmeldung ein und setzt dabei Rahmen und Größe neu
+  onSessionShown() {
+    this.connected = true;
+    this.adopt(this.hwnd);
+    if (!this.visible) winApi().ShowWindow(this.hwnd, SW_HIDE);
+    this.setBounds();
+    this.detectFixedSize();
+    this.setBounds();
+    this.onConnected?.();
   }
-    return false;
+
+  // Ohne dynamische Auflösung (Server zu alt, xrdp < 0.10 …) begrenzt mstsc das Fenster auf die Sitzungsgröße –
+  // erkennbar daran, dass es sich nicht vergrößern lässt. Dann hilft nur Neuverbinden mit der neuen Größe.
+  detectFixedSize() {
+    const api = winApi();
+    const r = {};
+    api.GetWindowRect(this.hwnd, r);
+    api.SetWindowPos(this.hwnd, 0, r.left, r.top, r.right - r.left + 32, r.bottom - r.top + 32, SWP_NOZORDER | SWP_NOACTIVATE);
+    const g = {};
+    api.GetWindowRect(this.hwnd, g);
+    this.fixedSize = g.right - g.left < r.right - r.left + 32 ? { width: r.right - r.left, height: r.bottom - r.top } : null;
+  }
+
+  // Zertifikat wurde für diese Sitzung bestätigt (Rückfrage gezeigt und danach verbunden) – gilt für Neuverbindungen beim Größenändern
+  get certAccepted() { return this.acceptCert || (this.certPrompted && this.connected); }
+
+  checkFixedSize() {
+    clearTimeout(this.resizeTimer);
+    const b = this.bounds;
+    if (!this.fixedSize || !this.visible || (Math.abs(b.width - this.fixedSize.width) < 8 && Math.abs(b.height - this.fixedSize.height) < 8)) return;
+    this.resizeTimer = setTimeout(() => this.onResizeNeeded?.(this.bounds), 800);
+  }
+
+  // Wartet, bis die Sitzung steht (Sitzungsfenster sichtbar)
+  attach(bounds, isCancelled) {
+    this.bounds = bounds;
+    return new Promise((resolve) => {
+      const t0 = Date.now();
+      const done = (ok) => { clearInterval(iv); this.onConnected = null; resolve(ok); };
+      this.onConnected = () => done(true);
+      const iv = setInterval(() => {
+        if (this.connected) done(true);
+        else if (isCancelled() || this.proc.exitCode !== null || Date.now() - t0 > 120000) done(false);
+      }, 250);
+    });
   }
 
   // b: physische Pixel relativ zum Client-Bereich von MrTerm -> Bildschirmkoordinaten
@@ -96,15 +193,17 @@ class WinEmbed {
     const pt = { x: this.bounds.x, y: this.bounds.y };
     api.ClientToScreen(this.parent, pt);
     api.SetWindowPos(this.hwnd, 0, pt.x, pt.y, Math.max(50, this.bounds.width), Math.max(50, this.bounds.height),
-      SWP_NOZORDER | SWP_NOACTIVATE | SWP_FRAMECHANGED | (this.visible ? SWP_SHOWWINDOW : 0));
+      SWP_NOZORDER | SWP_NOACTIVATE | SWP_FRAMECHANGED | (this.visible && this.connected ? SWP_SHOWWINDOW : 0));
+    if (this.connected) this.checkFixedSize();
   }
   reposition() { this.setBounds(); }
-  show() { this.visible = true; if (this.hwnd) { winApi().ShowWindow(this.hwnd, SW_SHOWNOACTIVATE); this.setBounds(); } }
+  show() { this.visible = true; if (this.hwnd && this.connected) { winApi().ShowWindow(this.hwnd, SW_SHOWNOACTIVATE); this.setBounds(); } }
-  hide() { this.visible = false; if (this.hwnd) winApi().ShowWindow(this.hwnd, SW_HIDE); }
+  hide() { this.visible = false; clearTimeout(this.resizeTimer); if (this.hwnd) winApi().ShowWindow(this.hwnd, SW_HIDE); }
   focus() { if (this.hwnd && this.visible) winApi().SetForegroundWindow(this.hwnd); }
   // Aus MrTerm lösen und als normales Fenster weiterlaufen lassen
   detach() {
     if (!this.hwnd) return;
+    this.unhook();
     const api = winApi();
     api.SetWindowLongPtrW(this.hwnd, GWLP_HWNDPARENT, 0);
     const style = ((((Number(api.GetWindowLongPtrW(this.hwnd, GWL_STYLE)) >>> 0) & ~WS_POPUP) | FRAME) >>> 0);
@@ -115,7 +214,7 @@ class WinEmbed {
     api.SetWindowPos(this.hwnd, 0, 80, 80, this.bounds?.width || 1280, this.bounds?.height || 800, SWP_NOZORDER | SWP_FRAMECHANGED | SWP_SHOWWINDOW);
     this.hwnd = null;
   }
-  kill() { try { this.proc?.kill(); } catch {} }
+  kill() { clearTimeout(this.resizeTimer); this.unhook(); try { this.proc?.kill(); } catch {} }
 }
 
 // ------------------------------------------------------------------ Linux (X11)

src/main/rdp.js

@@ -63,6 +63,16 @@ function writeRdpFile(host, size) {
   return file;
 }
 
+// mstsc-Kommandozeile für eingebettete Sitzungen. Seit 2026 zeigt mstsc bei jeder unsignierten .rdp-Datei eine
+// Sicherheitswarnung – mit /v:… startet es ohne. Die übrigen Optionen kommen dann aus Default.rdp (Zwischenablage an,
+// Audio lokal, keine Laufwerke, dynamische Auflösung); weicht der Host davon ab, geht es nur über eine .rdp-Datei.
+function mstscArgs(host, size) {
+  const port = Number(host.port) || 3389;
+  const needsFile = host.rdpDrives || host.rdpClipboard === false || host.rdpAudio === false || host.rdpResize === 'scale';
+  if (needsFile) return [writeRdpFile(host, size)];
+  return [`/v:${port === 3389 ? host.address : `${host.address}:${port}`}`, `/w:${size.width}`, `/h:${size.height}`];
+}
+
 // Legt Anmeldedaten kurzzeitig im Windows-Anmeldeinformationsspeicher ab, damit mstsc ohne Rückfrage verbindet.
 function withWinCredentials(host, run) {
   const user = userOf(host);
@@ -110,4 +120,4 @@ function launch(host, settings) {
   return { client, process: p, getErr: () => err };
 }
 
-module.exports = { detect, launch, linuxClient, writeRdpFile, withWinCredentials, freerdpArgs };
+module.exports = { detect, launch, linuxClient, writeRdpFile, mstscArgs, withWinCredentials, freerdpArgs };

src/main/store.js

@@ -16,6 +16,8 @@ const DEFAULTS = {
   vpns: [],
   knownHosts: {},
   history: [],
+  // Chats des Support-Assistenten (nur lokal, nicht synchronisiert)
+  aiChats: [],
   // Löschvermerke für die Synchronisation: { c: Collection, id, at }
   tombstones: [],
   // LAN-Synchronisation (gerätebezogen, wird selbst nicht synchronisiert)
@@ -41,6 +43,8 @@ const DEFAULTS = {
     language: 'auto',
     dockerStacksDir: '/opt/stacks',
     dockerTemplatesUrl: '',
+    aiUrl: 'http://localhost:11434',
+    aiModel: '',
   },
 };
 

src/renderer/app.js

@@ -46,6 +46,7 @@ const ICONS = {
   docker: '<svg viewBox="0 0 24 24"><path d="M2 12h19c-.6 4.5-4 8-10 8-5 0-8-3-9-8z"/><path d="M5 12V9h3v3M8 12V9h3v3M11 12V9h3v3M8 9V6h3v3M21 12c.5-1.5 0-3-1-3.5"/></svg>',
   wall: '<svg viewBox="0 0 24 24"><rect x="3" y="4" width="18" height="16" rx="1"/><path d="M3 9.3h18M3 14.7h18M9 4v5.3M15 4v5.3M6 9.3v5.4M12 9.3v5.4M18 9.3v5.4M9 14.7V20M15 14.7V20"/></svg>',
   network: '<svg viewBox="0 0 24 24"><rect x="9" y="3" width="6" height="5" rx="1"/><rect x="3" y="16" width="6" height="5" rx="1"/><rect x="15" y="16" width="6" height="5" rx="1"/><path d="M12 8v4M6 16v-4h12v4"/></svg>',
+  ai: '<svg viewBox="0 0 24 24"><path d="M4 5h16v11H9l-5 4z"/><path d="M9 10h.01M12 10h.01M15 10h.01"/></svg>',
   logs: '<svg viewBox="0 0 24 24"><path d="M5 4h14v16H5zM8 8h8M8 12h8M8 16h5"/></svg>',
 };
 const COLORS = ['#6e7bff', '#3ecf8e', '#ff5f6d', '#ffb454', '#c792ea', '#56d6d6', '#ff79c6', '#8b91a5', '#4f9dff', '#e0a100'];
@@ -150,6 +151,7 @@ async function reload() {
   S.vault = await call('vault:get');
   I18N.setLanguage(settings().language, navigator.language);
   applyStatic();
+  initAi();
   const b = $('#vaultBadge');
   b.innerHTML = S.vault.encrypted ? `${ICONS.lock}<span>${T('Vault encrypted')}</span>` : `${ICONS.unlock}<span>${T('Vault not encrypted')}</span>`;
   b.title = S.vault.encrypted ? T('Data is encrypted with the system keyring.') : T('No system keyring available (e.g. install gnome-keyring/kwallet).');
@@ -1051,6 +1053,28 @@ async function viewSettings(page) {
     save({ ...v, fontSize: Number(v.fontSize) || 14, scrollback: Number(v.scrollback) || 10000, keepAlive: Number(v.keepAlive) || 0 });
   });
 
+  // ---- Support-Assistent (Ollama)
+  const aiCard = h(`<div class="settings-card"><h3>${T('Support assistant')}</h3><p style="color:var(--muted);margin-top:0">${T('Helps with errors in the Linux console, Docker, firewall and network via a local <b>Ollama</b> instance. Open it with the chat button in the title bar or in a tab. The content of the active tab is sent to the Ollama server as context. Chats are stored in the vault.')}</p></div>`);
+  const aiUrl = field(T('Ollama server'), 'aiUrl', st.aiUrl || 'http://localhost:11434', { placeholder: 'http://localhost:11434' });
+  const aiModel = field(T('Model'), 'aiModel', st.aiModel, { type: 'select', options: [[st.aiModel || '', st.aiModel || T('– select –')]] });
+  const loadModels = async () => {
+    const sel = $('select', aiModel);
+    try {
+      const list = await api.call('ai:models', $('input', aiUrl).value.trim());
+      sel.innerHTML = '';
+      if (!list.length) sel.append(new Option(T('No models installed (ollama pull …)'), ''));
+      list.forEach((m) => sel.append(new Option(m, m)));
+      sel.value = list.includes(st.aiModel) ? st.aiModel : list[0] || '';
+      if (sel.value !== (settings().aiModel || '')) save({ aiModel: sel.value });
+    } catch (e) { toast(e.message, 'error'); }
+  };
+  const aiReload = h(`<button class="btn">${ICONS.refresh}${T('Load models')}</button>`);
+  aiReload.onclick = loadModels;
+  $('input', aiUrl).onchange = () => save({ aiUrl: $('input', aiUrl).value.trim() }).then(loadModels);
+  $('select', aiModel).onchange = () => save({ aiModel: $('select', aiModel).value });
+  aiCard.append(aiUrl, aiModel, aiReload);
+  if (st.aiModel) loadModels();
+
   const rdpCard = h(`<div class="settings-card"><h3>RDP</h3><div class="hint rdp-info" style="color:var(--muted);margin-bottom:12px">${T('Checking …')}</div></div>`);
   const emb = check(T('Show RDP connections as tabs in MrTerm'), 'rdpEmbed', st.rdpEmbed !== false);
   emb.onchange = async () => {
@@ -1132,8 +1156,8 @@ async function viewSettings(page) {
     <span>${C}+<kbd>Shift</kbd>+<kbd>F</kbd></span><span>${T('Search in terminal')}</span>
     <span>${C}+<kbd>+/−/0</kbd></span><span>${T('Font size')}</span>
     <span>${C}+<kbd>Shift</kbd>+<kbd>L</kbd></span><span>${T('Lock now')}</span></div></div>`);
-  if (WEB) c.append(langCard, webAccountCard(), designCard, themeCard, termCard, dockerCard, importCard, dataCard, keysCard);
+  if (WEB) c.append(langCard, webAccountCard(), designCard, themeCard, termCard, aiCard, dockerCard, importCard, dataCard, keysCard);
-  else c.append(langCard, secCard, syncCard, designCard, themeCard, termCard, rdpCard, dockerCard, importCard, dataCard, updCard, keysCard);
+  else c.append(langCard, secCard, syncCard, designCard, themeCard, termCard, aiCard, rdpCard, dockerCard, importCard, dataCard, updCard, keysCard);
 }
 
 // ============================================================ App-Sperre
@@ -1545,6 +1569,7 @@ function activateTab(id) {
   });
   $('.tab.active')[0]?.scrollIntoView({ block: 'nearest', inline: 'nearest' });
   renderTree();
+  if ($('#aiPanel').classList.contains('open')) aiUpdateCtx();
 }
 function closeTab(id) {
   const i = S.tabs.findIndex((t) => t.id === id);
@@ -1569,6 +1594,7 @@ class TerminalSession {
         <button class="btn ghost sm" data-a="sftp" title="${T('SFTP for this host')}">${ICONS.folder}SFTP</button>
         ${host.execCommand ? '' : `<button class="btn ghost sm" data-a="docker" title="${T('Docker containers')}">${ICONS.docker}Docker</button><button class="btn ghost sm" data-a="firewall" title="${T('Firewall')}">${ICONS.wall}${T('Firewall')}</button><button class="btn ghost sm" data-a="network" title="${T('Network')}">${ICONS.network}${T('Network')}</button>`}
         <button class="btn ghost sm" data-a="snip" title="Snippets">${ICONS.code}Snippets</button>
+        <button class="btn ghost sm" data-ai-toggle title="${T('Support assistant (Ollama)')}">${ICONS.ai}${T('Assistant')}</button>
         <button class="btn ghost sm" data-a="find" title="${T('Search (Ctrl+Shift+F)')}">${ICONS.search}</button>
       </div>
       <div class="term-wrap"><div class="term"></div>
@@ -1655,6 +1681,13 @@ class TerminalSession {
     box.append(templateList(this));
   }
 
+  // Letzte Zeilen des Terminals als Kontext für den Assistenten
+  aiContext(lines = 120) {
+    const b = this.term.buffer.active, out = [];
+    for (let i = Math.max(0, b.length - lines); i < b.length; i++) out.push(b.getLine(i)?.translateToString(true) ?? '');
+    return out.join('\n').replace(/\n{3,}/g, '\n\n').trim();
+  }
+
   toggleFind(open) {
     const fb = $('.findbar', this.el);
     const o = open ?? !fb.classList.contains('open');
@@ -1729,8 +1762,158 @@ class TerminalSession {
   }
   dispose() { this.unsub(); this.ro.disconnect(); api.ssh.close(this.id); this.term.dispose(); }
 }
+// Minimales Markdown für Assistenten-Antworten: Codeblöcke (mit Kopieren/Einfügen), Inline-Code, Fett
+function aiMarkdown(md) {
+  return md.split(/```/).map((part, i) => {
+    if (i % 2) {
+      const code = part.replace(/^[\w-]*\n/, '');
+      return `<div class="code"><div class="acts"><button class="btn ghost sm" data-cmd="copy">${T('Copy')}</button><button class="btn ghost sm" data-cmd="paste" title="${T('Insert into terminal (not executed)')}">${T('Insert')}</button></div><pre><code>${esc(code)}</code></pre></div>`;
+    }
+    return esc(part).replace(/`([^`\n]+)`/g, '<code>$1</code>').replace(/\*\*([^*]+)\*\*/g, '<b>$1</b>').replace(/\n/g, '<br>');
+  }).join('');
+}
 function openTerminal(host) { return new TerminalSession(host); }
 
+// ============================================================ Support-Assistent (tabübergreifend, Chats im Tresor)
+const AI = { chat: null, unsub: null, busy: false };
+const aiChats = () => (S.vault.aiChats ||= []);
+const activeSession = () => S.tabs.find((t) => t.id === S.active);
+
+function aiToggle(open) {
+  const p = $('#aiPanel'), o = open ?? !p.classList.contains('open');
+  p.classList.toggle('open', o);
+  if (o) { aiRender(); $('textarea', p).focus(); }
+}
+
+// Kontext aus dem aktiven Tab: Terminalausgabe, Docker-/Firewall-/Netzwerkansicht …
+function aiContext() {
+  const t = activeSession();
+  if (!t) return '';
+  const host = t.host ? `, host ${t.host.username ? t.host.username + '@' : ''}${t.host.address}` : '';
+  const body = String((t.aiContext ? t.aiContext() : t.el.innerText) || '').trim();
+  return body ? `Active MrTerm tab: ${t.title} (${t.kind}${host})\n\n${body.slice(-12000)}` : '';
+}
+function aiUpdateCtx() {
+  const t = activeSession();
+  $('#aiPanel .ctx-name').textContent = t ? t.title : T('Vault (no context)');
+}
+
+function aiRender() {
+  const p = $('#aiPanel'), sel = $('.chats', p), box = $('.msgs', p);
+  sel.innerHTML = '';
+  sel.append(new Option(T('New chat'), ''));
+  [...aiChats()].sort((a, b) => b.updatedAt - a.updatedAt).forEach((c) => sel.append(new Option(c.title, c.id)));
+  sel.value = AI.chat?.id && aiChats().includes(AI.chat) ? AI.chat.id : '';
+  box.innerHTML = '';
+  if (!AI.chat?.messages.length) box.append(h(`<div class="hint">${T('Ask about an error or let the assistant explain what you see. The content of the active tab is sent as context.')}</div>`));
+  for (const m of AI.chat?.messages || []) {
+    if (m.role === 'user') box.append(h(`<div class="m user">${m.tab ? `<small>${esc(m.tab)}</small>` : ''}${esc(m.content)}</div>`));
+    else { const d = h('<div class="m bot"></div>'); d.innerHTML = aiMarkdown(m.content); box.append(d); }
+  }
+  $('[data-ai=del]', p).disabled = !AI.chat?.id || !aiChats().includes(AI.chat);
+  aiUpdateCtx();
+  box.scrollTop = box.scrollHeight;
+}
+
+async function aiSave() {
+  const c = AI.chat;
+  if (!c) return;
+  if (!aiChats().includes(c)) aiChats().push(c);
+  c.updatedAt = Date.now();
+  try { await call('vault:upsert', 'aiChats', c); } catch {}
+}
+
+function aiSetBusy(b) {
+  AI.busy = b;
+  const btn = $('#aiPanel [type=submit]');
+  btn.textContent = b ? T('Stop') : T('Send');
+  btn.classList.toggle('danger', b);
+}
+
+async function aiAsk(text) {
+  const p = $('#aiPanel');
+  if (!p.classList.contains('open')) aiToggle(true);
+  if (AI.busy) return;
+  if (!settings().aiModel) { toast(T('Please select an Ollama model in the settings first.'), 'error'); return; }
+  if (!AI.chat) AI.chat = { id: uid(), title: text.replace(/\s+/g, ' ').slice(0, 60), messages: [] };
+  const chat = AI.chat, t = activeSession();
+  chat.messages.push({ role: 'user', content: text, tab: t?.title || '' });
+  aiRender();
+  const box = $('.msgs', p);
+  $('.hint', box)?.remove();
+  const out = h('<div class="m bot"><div class="spinner"></div></div>'); box.append(out);
+  box.scrollTop = box.scrollHeight;
+  const reply = { role: 'assistant', content: '' };
+  aiSetBusy(true);
+  const finish = async (err) => {
+    AI.unsub?.(); AI.unsub = null; aiSetBusy(false);
+    if (err) { out.classList.add('err'); out.textContent = err; chat.messages.pop(); }
+    else if (reply.content) { chat.messages.push(reply); await aiSave(); if (AI.chat === chat) aiRender(); }
+    else out.remove();
+  };
+  AI.unsub = api.on('ai:event', (cid, type, payload) => {
+    if (cid !== chat.id) return;
+    if (type === 'data') {
+      reply.content += payload;
+      if (AI.chat !== chat) return;
+      const stick = box.scrollHeight - box.scrollTop - box.clientHeight < 40;
+      out.innerHTML = aiMarkdown(reply.content);
+      if (stick) box.scrollTop = box.scrollHeight;
+    } else finish(type === 'error' ? payload : null);
+  });
+  const ctx = $('[name=ctx]', p).checked ? aiContext() : '';
+  try { await api.call('ai:chat', chat.id, chat.messages.slice(-20).map(({ role, content }) => ({ role, content })), ctx); }
+  catch (e) { finish(e.message); }
+}
+
+function initAi() {
+  const p = $('#aiPanel');
+  p.innerHTML = `<div class="head"><span>${ICONS.ai}${T('Support assistant')}</span>
+      <span><button class="btn ghost sm" data-ai="new" title="${T('New chat')}">${ICONS.plus}</button><button class="btn ghost sm" data-ai="del" title="${T('Delete chat')}">${ICONS.trash}</button><button class="btn ghost sm" data-ai-toggle title="${T('Close')}">${ICONS.close}</button></span></div>
+    <div class="bar"><select class="chats" title="${T('Saved chats')}"></select></div>
+    <div class="msgs"></div>
+    <form class="ask"><label class="check" title="${T('The content of the active tab is sent to the Ollama server.')}"><input type="checkbox" name="ctx" checked/>${T('Context:')}&nbsp;<b class="ctx-name"></b></label>
+      <textarea rows="3" placeholder="${T('Describe the problem … (Enter = send)')}"></textarea>
+      <div class="row"><button type="button" class="btn sm" data-ai="explain">${T('Explain this tab')}</button><button class="btn primary sm" type="submit">${T('Send')}</button></div></form>`;
+  const ta = $('textarea', p);
+  $('form', p).onsubmit = (e) => {
+    e.preventDefault();
+    if (AI.busy) { api.call('ai:stop', AI.chat?.id); return; }
+    if (ta.value.trim()) { aiAsk(ta.value.trim()); ta.value = ''; }
+  };
+  ta.addEventListener('keydown', (e) => { if (e.key === 'Enter' && !e.shiftKey) { e.preventDefault(); if (!AI.busy) $('form', p).requestSubmit(); } });
+  $('.chats', p).onchange = (e) => {
+    if (AI.busy) api.call('ai:stop', AI.chat?.id);
+    AI.chat = aiChats().find((c) => c.id === e.target.value) || null;
+    aiRender();
+  };
+  p.addEventListener('click', async (e) => {
+    const a = e.target.closest('[data-ai]')?.dataset.ai;
+    if (a === 'new') { if (AI.busy) api.call('ai:stop', AI.chat?.id); AI.chat = null; aiRender(); ta.focus(); }
+    if (a === 'del' && AI.chat && await confirmBox(T('Delete chat?'), `“${AI.chat.title}”`, T('Delete'))) {
+      if (AI.busy) api.call('ai:stop', AI.chat.id);
+      S.vault.aiChats = aiChats().filter((c) => c !== AI.chat);
+      await call('vault:remove', 'aiChats', AI.chat.id).catch(() => {});
+      AI.chat = null; aiRender();
+    }
+    if (a === 'explain') {
+      const t = activeSession();
+      aiAsk(t?.kind === 'ssh' ? T('Explain the last error in the terminal output and how to fix it.') : T('Look at the active tab, explain what you see and point out problems.'));
+    }
+    const b = e.target.closest('[data-cmd]');
+    if (!b) return;
+    const code = b.closest('.code').querySelector('code').textContent.replace(/\n+$/, '');
+    const t = activeSession();
+    // Nur einfügen, nicht ausführen – der Nutzer prüft und bestätigt mit Enter
+    if (b.dataset.cmd === 'paste' && t?.kind === 'ssh') { t.term.paste(code); t.term.focus(); }
+    else { api.call('clipboard:write', code); toast(b.dataset.cmd === 'paste' ? T('Copied – no terminal tab is active') : T('Copied')); }
+  });
+  if ($('#aiPanel').classList.contains('open')) aiRender();
+  if (AI.init) return;
+  AI.init = true;
+  document.addEventListener('click', (e) => { if (e.target.closest('[data-ai-toggle]')) aiToggle(); });
+}
+
 // ============================================================ RDP-Session (eingebettet im Tab)
 // Das RDP-Fenster ist ein natives Kindfenster und liegt immer über dem HTML.
 // Deshalb wird es ausgeblendet, solange ein Dialog, Menü oder die Befehlspalette offen ist.
@@ -1811,6 +1994,10 @@ class RdpSession {
       this.overlay?.remove(); this.overlay = null;
       setTabState(this, 'on');
       if (this.isVisible()) { this.pushBounds(); api.rdp.show(this.id); } else api.rdp.hide(this.id);
+    } else if (type === 'resizing') {
+      this.attached = false;
+      setTabState(this, 'wait');
+      this.showOverlay(T('Adjusting resolution …'));
     } else if (type === 'exit') {
       this.attached = false; this.exited = true;
       setTabState(this, payload?.code ? 'err' : '');
@@ -2098,6 +2285,7 @@ class DockerSession {
         <div class="seg sm"><button class="active" data-v="containers">${T('Containers')}</button><button data-v="stacks">Stacks</button></div>
         <label class="search sm">${ICONS.search}<input placeholder="${esc(T('Search …'))}"/></label>
         <label class="check stopped-opt" style="margin:0 6px"><input type="checkbox" data-a="stopped" checked/>${T('Show stopped')}</label>
+        <button class="btn ghost sm" data-ai-toggle title="${T('Support assistant (Ollama)')}">${ICONS.ai}</button>
         <button class="btn ghost sm" data-a="refresh" title="${T('Refresh')}">${ICONS.refresh}</button>
       </div>
       <div class="docker-body"><div class="pane-empty"><div class="spinner" style="width:30px;height:30px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .9s linear infinite"></div><div>${esc(T('Connecting to {host} …', { host: host.address }))}</div></div></div></div>`);
@@ -2372,6 +2560,12 @@ class DockerSession {
     } catch {}
   }
 
+  aiContext() {
+    if (!this.editing || !$('.se-compose', this.body)) return this.body.innerText;
+    const env = $('.se-env', this.body).value.replace(/^(\s*[^#=\s]+\s*=).*$/gm, '$1***');
+    return `Editing compose stack "${this.editing.name || ''}"\n\ncompose.yaml:\n${$('.se-compose', this.body).value}\n\n.env (values hidden):\n${env}`;
+  }
+
   // Editor für compose.yaml und .env; st.file fehlt bei neuen Stacks
   editStack(st) {
     this.editing = st;
@@ -2429,6 +2623,7 @@ class FirewallSession {
       <div class="sbar"><div class="info">${avatar(host, 22)}<span>${esc(hostSub(host))}</span><span class="rt"></span></div>
         <div class="seg sm backends"></div>
         <button class="btn ghost sm" data-a="save" style="display:none" title="${esc(T('Save the current iptables rules so they survive a reboot'))}">${ICONS.download}${T('Save permanently')}</button>
+        <button class="btn ghost sm" data-ai-toggle title="${T('Support assistant (Ollama)')}">${ICONS.ai}</button>
         <button class="btn ghost sm" data-a="refresh" title="${T('Refresh')}">${ICONS.refresh}</button>
         <button class="btn primary sm" data-a="add" disabled>${ICONS.plus}${T('Add rule')}</button>
       </div>
@@ -2622,6 +2817,7 @@ class NetworkSession {
       <div class="sbar"><div class="info">${avatar(host, 22)}<span>${esc(hostSub(host))}</span><span class="rt"></span></div>
         <label class="check" style="margin:0 6px"><input type="checkbox" data-a="virtual"/>${T('Show virtual interfaces')}</label>
         <button class="btn ghost sm" data-a="files">${ICONS.file}${T('Config files')}</button>
+        <button class="btn ghost sm" data-ai-toggle title="${T('Support assistant (Ollama)')}">${ICONS.ai}</button>
         <button class="btn ghost sm" data-a="refresh" title="${T('Refresh')}">${ICONS.refresh}</button>
         <button class="btn primary sm" data-a="new" disabled>${ICONS.plus}${T('New interface')}</button>
       </div>

src/renderer/index.html

@@ -19,6 +19,7 @@
       </div>
       <button id="newTabBtn" class="icon-btn" title="Quick Connect (Ctrl+Shift+K)" data-i18n-title="Quick Connect (Ctrl+Shift+K)">+</button>
       <div class="drag-fill"></div>
+      <button id="aiBtn" class="icon-btn" data-ai-toggle title="Support assistant (Ollama)" data-i18n-title="Support assistant (Ollama)"><svg viewBox="0 0 24 24"><path d="M4 5h16v11H9l-5 4z"/><path d="M9 10h.01M12 10h.01M15 10h.01"/></svg></button>
       <button id="lockBtn" class="icon-btn lock-btn" style="display:none" title="Lock (Ctrl+Shift+L)" data-i18n-title="Lock (Ctrl+Shift+L)"><svg viewBox="0 0 24 24"><rect x="5" y="11" width="14" height="10" rx="2"/><path d="M8 11V7a4 4 0 0 1 8 0v4"/></svg></button>
       <div class="win-ctrls">
         <button id="winMin" title="Minimize" data-i18n-title="Minimize"><svg viewBox="0 0 12 12"><path d="M2 6h8"/></svg></button>
@@ -52,6 +53,7 @@
         <div id="sessions"></div>
       </main>
 
+      <aside id="aiPanel" class="ai-panel"></aside>
       <aside id="drawer" class="drawer"></aside>
     </div>
   </div>

src/renderer/styles.css

@@ -198,6 +198,31 @@ body.in-session #sidebar { display: none; }
 .snip-tpl .it:hover { background: var(--card-hover); }
 .snip-tpl .hint { color: var(--muted); font-size: 12px; margin-top: 3px; }
 .snip-panel .it .mono { color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 3px; }
+/* Support-Assistent (rechts neben allen Tabs) */
+.ai-panel { width: 400px; border-left: 1px solid var(--border); background: var(--bg-2); display: none; flex-direction: column; flex: none; min-height: 0; }
+.ai-panel.open { display: flex; }
+.ai-panel .head { padding: 8px 12px; font-weight: 600; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
+.ai-panel .head > span:first-child { display: flex; align-items: center; gap: 8px; }
+.ai-panel .head svg { width: 16px; height: 16px; }
+.ai-panel .bar { padding: 8px 12px; border-bottom: 1px solid var(--border); }
+.ai-panel .bar select { width: 100%; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 5px 8px; color: inherit; }
+.ai-panel .msgs { flex: 1; overflow: auto; padding: 10px; display: flex; flex-direction: column; gap: 8px; user-select: text; }
+.ai-panel .msgs .hint { color: var(--muted); padding: 8px; }
+.ai-panel .m { border-radius: 8px; padding: 8px 10px; line-height: 1.45; overflow-wrap: anywhere; }
+.ai-panel .m.user { background: var(--accent); color: #fff; align-self: flex-end; max-width: 90%; white-space: pre-wrap; }
+.ai-panel .m.user small { display: block; opacity: .75; font-size: 10px; margin-bottom: 2px; }
+.ai-panel .m.bot { background: var(--card); }
+.ai-panel .m.err { color: var(--red, #ff6b6b); }
+.ai-panel .m code { font-family: var(--mono, monospace); font-size: 12px; background: var(--bg); padding: 1px 4px; border-radius: 4px; }
+.ai-panel .code { margin: 6px 0; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; }
+.ai-panel .code .acts { display: flex; justify-content: flex-end; gap: 2px; padding: 2px; border-bottom: 1px solid var(--border); }
+.ai-panel .code pre { margin: 0; padding: 8px; overflow: auto; }
+.ai-panel .code pre code { background: none; padding: 0; }
+.ai-panel .ask { border-top: 1px solid var(--border); padding: 8px; display: flex; flex-direction: column; gap: 6px; }
+.ai-panel .ask .check { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }
+.ai-panel .ask textarea { background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 6px 8px; resize: vertical; color: inherit; font: inherit; outline: none; }
+.ai-panel .ask .row { justify-content: space-between; }
+.ai-panel .spinner { width: 16px; height: 16px; }
 .findbar { position: absolute; top: 8px; right: 24px; z-index: 4; display: none; gap: 4px; align-items: center; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 4px; box-shadow: 0 8px 24px #0008; }
 .findbar.open { display: flex; }
 .findbar input { background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 5px 8px; outline: none; width: 200px; }