Add Ghostty terminal, session recovery, voice asset caching, and gitignore large assets

Integrates ghostty-web and node-pty packages, adds tmux session recovery on startup,
refactors WebSocket transport to noServer mode, caches Sherpa voice model assets via
service worker. Large assets (sherpa, ghostty-vt.wasm, fonts) are now gitignored as
they are copied from the webterm project.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitignore

@@ -11,3 +11,8 @@ docs/
 .server.pid
 
 .bkit/
+
+# Large assets copied from webterm project — not tracked in git
+public/sherpa-moonshine-v2-base-en/
+public/ghostty-vt.wasm
+public/fonts/

CLAUDE.md

@@ -2,6 +2,10 @@
 
 This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
 
+## Large Assets
+
+`public/sherpa-moonshine-v2-base-en/` (~147MB), `public/ghostty-vt.wasm` (~416KB), and `public/fonts/` (~2.6MB) are copied from the **webterm** project and are excluded from git. Copy them manually from `../webterm/public/` when setting up.
+
 ## Commands
 
 ```bash

package.json

@@ -47,9 +47,11 @@
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "express": "^5.1.0",
+    "ghostty-web": "^0.4.0",
     "jsonwebtoken": "^9.0.2",
     "lucide-react": "^0.577.0",
     "multer": "^2.1.1",
+    "node-pty": "^1.1.0",
     "react": "^19.1.0",
     "react-dom": "^19.1.0",
     "react-markdown": "^10.1.0",
@@ -84,6 +86,7 @@
     "bcrypt@6.0.0": true,
     "better-sqlite3@12.10.0": true,
     "esbuild@0.28.0": true,
-    "esbuild@0.25.12": true
+    "esbuild@0.25.12": true,
+    "node-pty@1.1.0": true
   }
 }

server/adapters/claude/tmux-adapter.ts

@@ -104,6 +104,7 @@ export class TmuxAdapter extends EventEmitter {
     this._clientChecker = null;
     this._cleanupInterval = null;
     this._startSessionCleanup();
+    this._recoverSessions().catch((err) => console.error('[tmux] Recovery error:', err));
   }
 
   /** Set a function that checks if WS clients are connected for a session */
@@ -806,6 +807,48 @@ export class TmuxAdapter extends EventEmitter {
 
   // === Helpers ===
 
+  private async _recoverSessions(): Promise<void> {
+    const UUID_RE = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
+    let windows: TmuxWindow[];
+    try {
+      windows = await tmuxManager.listWindows();
+    } catch (err) {
+      console.error('[tmux] Recovery: listWindows failed:', err);
+      return;
+    }
+
+    console.log(`[tmux] Recovery: found ${windows.length} window(s):`, windows.map(w => `${w.name}(${w.command})`).join(', '));
+    const candidates = windows.filter(w => UUID_RE.test(w.name));
+    if (candidates.length === 0) {
+      console.log('[tmux] Recovery: no UUID-named windows to recover');
+      return;
+    }
+
+    await Promise.all(candidates.map(async (win) => {
+      const sessionId = win.name;
+      if (this.sessions.has(sessionId)) return;
+
+      // Find the JSONL file to recover real cwd and firstPrompt
+      let cwd = win.cwd;
+      let firstPrompt: string | null = null;
+      const jsonlPath = await this._findJsonlPath(sessionId);
+      if (jsonlPath) {
+        try {
+          const header = await parseSessionHeader(jsonlPath, sessionId);
+          if (header.cwd) cwd = header.cwd;
+          firstPrompt = header.firstPrompt;
+        } catch {}
+      }
+
+      const state = this._createSession(win.id, cwd, sessionId, 'bypassPermissions');
+      state.firstPrompt = firstPrompt;
+      this.sessions.set(sessionId, state);
+      this._startMonitor(sessionId, win.id);
+      await this._ensureWatcher(sessionId);
+      console.log(`[tmux] Recovered session ${sessionId} (${cwd})`);
+    }));
+  }
+
   private _createSession(windowId: string, cwd: string, cliSessionId: string, permissionMode: string): SessionState {
     return {
       windowId,

server/transport/websocket-transport.ts

@@ -22,11 +22,10 @@ export class WebSocketTransport extends EventEmitter {
   // connection is never terminated before it has a chance to respond.
   private alive = new WeakMap<WebSocket, boolean>();
 
-  /** Create WebSocketServer on /ws path with JWT verification and ping/pong keepalive. */
+  /** Create WebSocketServer in noServer mode. Call handleUpgrade() from your server upgrade handler. */
-  setup(server: HttpServer | HttpsServer): void {
+  setup(_server: HttpServer | HttpsServer): void {
     this.wss = new WebSocketServer({
-      server,
+      noServer: true,
-      path: '/ws',
       verifyClient: ({ req }, cb) => {
         const url = new URL(req.url!, `http://${req.headers.host}`);
         const token = url.searchParams.get('token');
@@ -73,6 +72,13 @@ export class WebSocketTransport extends EventEmitter {
     this.pingInterval.unref();
   }
 
+  /** Route an HTTP upgrade request into this WSS (called from server's upgrade handler). */
+  handleUpgrade(req: import('http').IncomingMessage, socket: import('stream').Duplex, head: Buffer): void {
+    this.wss!.handleUpgrade(req, socket, head, (ws) => {
+      this.wss!.emit('connection', ws, req);
+    });
+  }
+
   /** Shut down the WebSocket server and stop keepalive. */
   destroy(): void {
     if (this.pingInterval) {

src/sw.ts

@@ -1,7 +1,7 @@
 /// <reference lib="webworker" />
 import { precacheAndRoute } from 'workbox-precaching';
 import { registerRoute } from 'workbox-routing';
-import { NetworkFirst } from 'workbox-strategies';
+import { NetworkFirst, CacheFirst } from 'workbox-strategies';
 
 declare const self: ServiceWorkerGlobalScope;
 
@@ -31,6 +31,12 @@ registerRoute(
   })
 );
 
+// Sherpa voice model assets — large (~147MB total), cached on first voice use
+registerRoute(
+  ({ url }) => url.pathname.startsWith('/sherpa-moonshine-v2-base-en/'),
+  new CacheFirst({ cacheName: 'terminal-voice-assets' })
+);
+
 // Push notification handler — server already filters by clientCount,
 // so we always show the notification if one is received.
 self.addEventListener('push', (event) => {

vite.config.ts

@@ -39,7 +39,9 @@ export default defineConfig({
         categories: ['developer-tools', 'productivity'],
       },
       injectManifest: {
-        globPatterns: ['**/*.{js,css,html,ico,svg,woff2}', 'favicon-*.png', 'apple-touch-icon.png', 'badge-*.png', 'mascot/*.png'],
+        globPatterns: ['**/*.{js,css,html,ico,svg,woff2,wasm,ttf}', 'favicon-*.png', 'apple-touch-icon.png', 'badge-*.png', 'mascot/*.png'],
+        globIgnores: ['sherpa-moonshine-v2-base-en/**'],
+        maximumFileSizeToCacheInBytes: 5 * 1024 * 1024, // 5 MiB (font is ~2.6 MiB)
       },
     }),
   ],
@@ -60,9 +62,20 @@ export default defineConfig({
         ws: true,
         secure: false,
       },
+      '/terminal': {
+        target: 'wss://localhost:3456',
+        ws: true,
+        secure: false,
+      },
     },
   },
   build: {
     outDir: 'dist',
+    rollupOptions: {
+      external: ['node-pty'],
+    },
+  },
+  optimizeDeps: {
+    exclude: ['node-pty'],
   },
 });