feat: 新增设备巡检模块实现完整的巡检告警功能

新增设备巡检模块核心功能，包括：
- 巡检数据存储与调度系统
- 华为/H3C交换机及Linux服务器采集器
- 设备扩展配置与告警规则管理
- 主机详情页巡检配置入口
- 产品名称自定义设置功能
- 网络设备SSH exec通道兼容处理

electron/bridges/boundedSshExec.cjs

@@ -40,6 +40,26 @@ function openBoundedSshExecStream(
   if (!sshClient || typeof sshClient.exec !== "function") {
     return Promise.reject(new Error("SSH exec unavailable"));
   }
+  // [NETWORK-DEVICE GATE] H3C / Huawei VRP / Comware / Cisco etc. only allow
+  // one SSH channel per transport. Opening an exec channel on the same conn
+  // drops the user's interactive shell outright. Detect from the SSH banner
+  // stored on the ssh2 Client and bail out early.
+  const _v = typeof sshClient._remoteVer === "string" ? sshClient._remoteVer : "";
+  if (
+    /^H3C[-_\s]/i.test(_v)
+    || /^Comware-/i.test(_v)
+    || /^HUAWEI[-_]/i.test(_v)
+    || /^VRP-/i.test(_v)
+    || _v === "-"
+    || /^Cisco[-_]|^CiscoIOS_/i.test(_v)
+    || /^RGOS_SSH/i.test(_v)
+    || /^JUNOS/i.test(_v)
+  ) {
+    return Promise.reject(Object.assign(
+      new Error("SSH exec channel not supported on network device (vendor CLI only allows one channel per connection)"),
+      { code: "SSH_EXEC_NOT_SUPPORTED" },
+    ));
+  }
   const signal = options.signal || null;
   const setTimeoutFn = options.setTimeoutFn || setTimeout;
   const clearTimeoutFn = options.clearTimeoutFn || clearTimeout;