Add comprehensive error handling to prevent process crashes

- Global uncaughtException/unhandledRejection handlers in index.ts
- FFmpeg stdout/stderr stream error handlers in player.ts
- HTTP server and WebSocket server error handlers in server.ts
- Safe WebSocket broadcast with try-catch in websocket.ts
- Catch async errors from textMessage handler in instance.ts
- Reset voiceFramesSent counter on reconnect in client.ts

https://claude.ai/code/session_01EjpEsC2GCsvwbu4n3XC8EE

src/web/server.ts

@@ -67,7 +67,14 @@ export function createWebServer(options: WebServerOptions): WebServer {
     });
   }
 
+  server.on("error", (err) => {
+    logger.error({ err }, "HTTP server error");
+  });
+
   const wss = new WebSocketServer({ server, path: "/ws" });
+  wss.on("error", (err) => {
+    logger.error({ err }, "WebSocket server error");
+  });
   const cleanupWs = setupWebSocket(wss, options.botManager, logger);
 
   return {