fix: add parse error logging in ws_worker, fix worker workdir path

src/ws_worker.rs

@@ -90,8 +90,13 @@ async fn handle_worker_socket(socket: WebSocket, state: Arc<WsWorkerState>) {
         while let Some(Ok(msg)) = receiver.next().await {
             match msg {
                 Message::Text(text) => {
-                    if let Ok(worker_msg) = serde_json::from_str::<WorkerToServer>(&text) {
-                        handle_worker_message(&state_clone, worker_msg).await;
+                    match serde_json::from_str::<WorkerToServer>(&text) {
+                        Ok(worker_msg) => {
+                            handle_worker_message(&state_clone, worker_msg).await;
+                        }
+                        Err(e) => {
+                            tracing::warn!("Failed to parse worker message: {} — raw: {}", e, &text[..text.len().min(200)]);
+                        }
                     }
                 }
                 Message::Close(_) => break,