feat: 增加ws重连机制

packages/backend/src/services/ssh.service.ts

@@ -102,8 +102,8 @@ export const establishSshConnection = (
             privateKey: connDetails.privateKey,
             passphrase: connDetails.passphrase,
             readyTimeout: timeout,
-            keepaliveInterval: 30000, // 保持连接
-            keepaliveCountMax: 3,
+            keepaliveInterval: 10000, // 保持连接
+            keepaliveCountMax: 10,
         };
 
         const readyHandler = () => {

packages/backend/src/websocket.ts

@@ -92,7 +92,7 @@ export const initializeWebSocket = (server: http.Server, sessionParser: RequestH
             extWs.isAlive = false;
             extWs.ping(() => {});
         });
-    }, 30000); // 30 秒心跳间隔
+    }, 60000); // 增加到 60 秒心跳间隔
 
     // --- WebSocket 升级处理 (认证) ---
     server.on('upgrade', (request: Request, socket, head) => {