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

components/settings/tabs/SettingsSystemTab.tsx

@@ -1,14 +1,13 @@
 /**
  * Settings System Tab - System information, temp file management, session logs, and global hotkey
  */
-import { ChevronDown, ChevronRight, Download, ExternalLink, FolderOpen, RefreshCw, RotateCcw, Trash2 } from "lucide-react";
+import { ChevronDown, ChevronRight, FolderOpen, RefreshCw, Trash2 } from "lucide-react";
 import React, { useCallback, useEffect, useState } from "react";
 import { useI18n } from "../../../application/i18n/I18nProvider";
 import type { AppLockSystemUnlockStatus } from "../../../application/state/useAppLockState";
 import type { AppLockSettings, AppLockSettingsChangeError, AppLockTimeoutMinutes } from "../../../domain/appLock";
 import { getCredentialProtectionAvailability } from "../../../infrastructure/services/credentialProtection";
 import { netcattyBridge } from "../../../infrastructure/services/netcattyBridge";
-import type { UpdateState } from '../../../application/state/useUpdateCheck';
 import { SessionLogFormat, keyEventToString } from "../../../domain/models";
 import type { HttpNetworkProxyMode, HttpNetworkProxySettings } from "../../../domain/httpNetworkProxy";
 import { Button } from "../../ui/button";
@@ -64,22 +63,6 @@ function formatBytes(bytes: number): string {
   return `${parseFloat((bytes / Math.pow(k, i)).toFixed(2))} ${sizes[i]}`;
 }
 
-/** Returns a locale-agnostic relative time string for the given timestamp. */
-function formatLastChecked(
-  timestamp: number | null,
-  t: (key: string) => string,
-): string {
-  if (!timestamp) return '';
-  const diffMs = Date.now() - timestamp;
-  if (diffMs < 0) return t('settings.update.lastCheckedJustNow');
-  const diffMins = Math.floor(diffMs / 60000);
-  if (diffMins < 1) return t('settings.update.lastCheckedJustNow');
-  if (diffMins < 60)
-    return t('settings.update.lastCheckedMinutesAgo').replace('{n}', String(diffMins));
-  const diffHours = Math.floor(diffMins / 60);
-  return t('settings.update.lastCheckedHoursAgo').replace('{n}', String(diffHours));
-}
-
 interface SettingsSystemTabProps {
   appLockSettings: AppLockSettings;
   setAppLockTimeoutMinutes: (timeoutMinutes: AppLockTimeoutMinutes) => void;
@@ -129,14 +112,6 @@ interface SettingsSystemTabProps {
   hotkeyRegistrationError: string | null;
   globalHotkeyEnabled: boolean;
   setGlobalHotkeyEnabled: (enabled: boolean) => void;
-  autoUpdateEnabled: boolean;
-  setAutoUpdateEnabled: (enabled: boolean) => void;
-  // Unified update state — from useUpdateCheck hook in SettingsPageContent
-  updateState: UpdateState;
-  checkNow: () => Promise<unknown>;
-  installUpdate: () => void;
-  openReleasePage: () => void;
-  startDownload: () => void;
 }
 
 const SettingsSystemTab: React.FC<SettingsSystemTabProps> = ({
@@ -181,13 +156,6 @@ const SettingsSystemTab: React.FC<SettingsSystemTabProps> = ({
   hotkeyRegistrationError,
   globalHotkeyEnabled,
   setGlobalHotkeyEnabled,
-  autoUpdateEnabled,
-  setAutoUpdateEnabled,
-  updateState,
-  checkNow,
-  installUpdate,
-  openReleasePage,
-  startDownload,
 }) => {
   const { t } = useI18n();
   const isMac = typeof navigator !== "undefined" && /Mac/i.test(navigator.platform);
@@ -211,18 +179,6 @@ const SettingsSystemTab: React.FC<SettingsSystemTabProps> = ({
   const [isClearingSessionLogs, setIsClearingSessionLogs] = useState(false);
   const [sessionLogsClearResult, setSessionLogsClearResult] = useState<{ deletedCount: number; failedCount: number } | null>(null);
 
-  const [appVersion, setAppVersion] = useState('');
-
-  // Load app version on mount
-  useEffect(() => {
-    const promise = netcattyBridge.get()?.getAppInfo?.();
-    if (promise) {
-      promise.then((info) => {
-        setAppVersion(info?.version ?? '');
-      }).catch(() => {});
-    }
-  }, []);
-
   const loadTempDirInfo = useCallback(async () => {
     const bridge = netcattyBridge.get();
     if (!bridge?.getTempDirInfo) return;
@@ -473,142 +429,6 @@ const SettingsSystemTab: React.FC<SettingsSystemTabProps> = ({
   ];
   return (
     <SettingsTabContent value="system">
-          <SectionHeader title={t('settings.update.title')} anchorId="system-update" />
-            <SettingCard className="space-y-3 py-4">
-              {/* Current version */}
-              <div className="flex items-center justify-between">
-                <span className="text-sm text-muted-foreground">
-                  {t('settings.update.currentVersion')}
-                </span>
-                <span className="text-sm font-mono">
-                  {updateState.currentVersion || appVersion || '...'}
-                </span>
-              </div>
-
-              {/* Status message — priority: autoDownloadStatus > isChecking/manualCheckStatus */}
-              {updateState.autoDownloadStatus === 'downloading' && (
-                <div className="space-y-2">
-                  <p className="text-sm text-muted-foreground">
-                    {t('settings.update.downloading').replace('{percent}', String(updateState.downloadPercent))}
-                  </p>
-                  <div className="h-2 w-full rounded-full bg-muted overflow-hidden">
-                    <div
-                      className="h-full rounded-full bg-primary transition-all duration-300"
-                      style={{ width: `${updateState.downloadPercent}%` }}
-                    />
-                  </div>
-                </div>
-              )}
-              {updateState.autoDownloadStatus === 'ready' && (
-                <p className="text-sm text-green-600 dark:text-green-400">
-                  {t('settings.update.readyToInstall')}
-                </p>
-              )}
-              {updateState.autoDownloadStatus === 'error' && (
-                <p className="text-sm text-destructive">
-                  {updateState.downloadError || t('settings.update.error')}
-                </p>
-              )}
-              {updateState.autoDownloadStatus === 'idle' && (
-                <>
-                  {updateState.manualCheckStatus === 'up-to-date' && (
-                    <p className="text-sm text-green-600 dark:text-green-400">
-                      {t('settings.update.upToDate')}
-                    </p>
-                  )}
-                  {(updateState.manualCheckStatus === 'available' || (updateState.manualCheckStatus === 'idle' && updateState.hasUpdate)) && (
-                    <p className="text-sm text-blue-600 dark:text-blue-400">
-                      {t('settings.update.available').replace(
-                        '{version}',
-                        updateState.latestRelease?.version ?? ''
-                      )}
-                    </p>
-                  )}
-                  {updateState.manualCheckStatus === 'error' && (
-                    <p className="text-sm text-destructive">
-                      {updateState.error || t('settings.update.error')}
-                    </p>
-                  )}
-                </>
-              )}
-
-              {/* Action buttons */}
-              <div className="flex items-center gap-2 pt-1">
-                {/* Checking spinner — shown when isChecking OR manualCheckStatus=checking, but no active download */}
-                {(updateState.autoDownloadStatus === 'idle' || updateState.autoDownloadStatus === 'error') &&
-                  (updateState.isChecking || updateState.manualCheckStatus === 'checking') ? (
-                  <Button variant="outline" size="sm" disabled>
-                    <RefreshCw size={14} className="mr-1.5 animate-spin" />
-                    {t('settings.update.checking')}
-                  </Button>
-                ) : (updateState.autoDownloadStatus === 'idle' || updateState.autoDownloadStatus === 'error') ? (
-                  /* Check button — shown in idle states and in error state (allows retry) */
-                  <Button
-                    variant="outline"
-                    size="sm"
-                    onClick={() => void checkNow()}
-                  >
-                    <RefreshCw size={14} className="mr-1.5" />
-                    {t('settings.update.checkForUpdates')}
-                  </Button>
-                ) : null}
-
-                {/* Install button — shown when download is complete */}
-                {updateState.autoDownloadStatus === 'ready' && (
-                  <Button variant="default" size="sm" onClick={installUpdate}>
-                    <RotateCcw size={14} className="mr-1.5" />
-                    {t('settings.update.restartNow')}
-                  </Button>
-                )}
-
-                {/* Open releases — shown on download error */}
-                {updateState.autoDownloadStatus === 'error' && (
-                  <Button variant="ghost" size="sm" onClick={openReleasePage}>
-                    <ExternalLink size={14} className="mr-1.5" />
-                    {t('settings.update.manualDownload')}
-                  </Button>
-                )}
-
-                {/* Download button — shown when update found and no download in progress */}
-                {updateState.autoDownloadStatus === 'idle' &&
-                  updateState.manualCheckStatus === 'available' && (
-                  <Button variant="outline" size="sm" onClick={startDownload}>
-                    <Download size={14} className="mr-1.5" />
-                    {t('update.downloadNow')}
-                  </Button>
-                )}
-
-                {/* Open releases — fallback for unsupported platforms or check errors */}
-                {updateState.autoDownloadStatus === 'idle' &&
-                  (updateState.manualCheckStatus === 'available' || updateState.manualCheckStatus === 'error' || (updateState.manualCheckStatus === 'idle' && updateState.hasUpdate)) && (
-                  <Button variant="ghost" size="sm" onClick={openReleasePage}>
-                    <ExternalLink size={14} className="mr-1.5" />
-                    {t('settings.update.manualDownload')}
-                  </Button>
-                )}
-              </div>
-              <SettingRow
-                anchorId="system-auto-update"
-                label={t('settings.update.autoUpdateEnabled')}
-                description={t('settings.update.autoUpdateEnabledDesc')}
-              >
-                <Toggle
-                  checked={autoUpdateEnabled}
-                  onChange={setAutoUpdateEnabled}
-                />
-              </SettingRow>
-            </SettingCard>
-            <SettingHint>
-              {updateState.lastCheckedAt && (
-                <span>
-                  {t('settings.update.lastCheckedPrefix')}
-                  {formatLastChecked(updateState.lastCheckedAt, t)}
-                  {'　'}
-                </span>
-              )}
-              {t('settings.update.hint')}
-            </SettingHint>
-
           <SectionHeader title={t("settings.autoLaunch.title")} />
             <SettingCard className="py-4">
               <SettingRow