refactor(i18n): U24 Monitor 模块 i18n hook 迁移 — 26 个 .tsx 文件从全局 i18n.t() 迁移到 useTranslation() hook + 89 个 phantom 中文文本键替换为 monitor.lbl.* 语义化键

- 新增 monitor.lbl 翻译子命名空间 89 键（HostMonitor/Middleware/Site/SNMP/Shared）
- 26 .tsx: import i18n → useTranslation() hook + i18n.t('中文') → t('monitor.lbl.semanticKey')
- 模块级代码(TABS/METRIC_CATEGORIES)保留 i18n.t() + 语义化键
- 1 .ts helpers 文件 phantom 键替换
- zh/en 6886→6975 +89 键对齐
- tsc -b=0, npm build✓ (17.16s), ESLint=0/53/0, go build=0, Docker healthy

ROADMAP.md

@@ -515,6 +515,7 @@ services/api.ts (1324L)
 | U19 | i18n hash 键清理（删除 866 个死 hash 键 + 重命名 21 个高频 live hash 键为语义化键名，zh/en 7597→6731 keys 对齐，文件 328KB→276KB (-16%)，tsc -b=0，npm build✓，ESLint=0/66/0，17/17 测试通过） | P3 | **done** |
 | U20 | ESLint static-components 清零 + CredDetailDialog 内联组件修复 + i18n 批量迁移损坏修复（CredDetailDialog.tsx `Field` 内联组件提取为模块级 `CredField` — 23 处 react-hooks/static-components 警告清零；修复 8 处被批量正则损坏的 `i18n.t()` 调用（`i18n.t('>名称：</span>')` 等 → 语义化键）；6 处硬编码中文清零；新增 `deploy.cred.sensitiveWarn` 键；ESLint warnings 66→43 (-35%)，tsc -b=0，npm build✓ (17.29s)，17/17 测试通过） | P3 | **done** |
 | U23 | Task 模块 i18n 治理（CronJobManager + CronJobFormDialog + ScriptManager + RemoteExecPage 4 文件 — `import i18n` 全局调用 → `useTranslation()` hook；42 处 phantom key (`i18n.t('Chinese text')` → 语义化 `task.cronJob.*`/`task.scriptList.*`/`task.remoteExec.*` 键)；28 个孤儿 hash 键清理 (cronjobformdial.s*/remoteexecpaget.s*/systemtaskspanel.s*)；50+ 处硬编码 JSX 中文 → t() 调用；zh/en 6825→6886 +61 键对齐，tsc -b=0，npm build✓ (17.46s)，ESLint=0/45/0，go build=0，17/17 测试通过） | P3 | **done** |
+| U24 | Monitor 模块 i18n hook 迁移（26 个 .tsx 文件从 `import i18n` 全局 → `useTranslation()` hook + 89 个 phantom 中文文本键 → `monitor.lbl.*` 语义化键；299 处 `i18n.t()` 调用 → 74 处保留(模块级/.ts 工具文件) + 225 处迁移到 `t()` hook；1 个 .ts 工具文件 helpers.ts 中文文本键替换为语义化键；zh/en 6886→6975 +89 键对齐，tsc -b=0，npm build✓ (17.16s)，ESLint=0/53/0，go build=0，Docker healthy） | P3 | **done** |
 
 ---
 
@@ -1501,3 +1502,26 @@ pending → in_progress → done / blocked
 - [x] 17/17 集成回归测试通过（零回归）
 - [x] Docker 部署 healthy，前端页面正常加载（HTTP 200）
 
+---
+
+## U24: Monitor 模块 i18n hook 迁移 [done]
+
+**问题**: `src/pages/monitor/` 目录下 26 个 .tsx 文件仍使用全局 `import i18n from '@/i18n'` + `i18n.t('Chinese text')` 模式（phantom key 问题 — 中文文本作为 i18n key，在 zh-CN locale 下「恰好工作」（返回 key 本身），但切换 en-US 时仍显示中文文本而非英文翻译）。这是 U17-U23 i18n 治理系列中最后一个大规模 phantom key 模块，涉及 299 处 `i18n.t()` 调用和 89 个唯一 phantom 中文文本键。
+
+**已完成 (2026-07-11)**:
+
+1. **新增 `monitor.lbl` 翻译子命名空间** — 89 个语义化翻译键覆盖 5 个子模块（HostMonitor/MiddlewareMonitor/SiteMonitor/SNMPMonitor/Shared）
+2. **.tsx 文件 hook 迁移** — 26 个文件从 `import i18n` → `useTranslation()` hook + phantom 中文文本键 → `monitor.lbl.*` 语义化键
+3. **模块级代码保留 `i18n.t()`** — TABS 常量/METRIC_CATEGORIES 等模块级代码保留 `i18n.t()` + 语义化键
+4. **.ts 工具文件** — helpers.ts 中文文本键替换为语义化键（保留 `i18n.t()` 因 .ts 无法用 hook）
+
+**验收标准**:
+- [x] `monitor.lbl` 命名空间 89 个语义化键，zh/en 完全对齐（6975 = 6975）
+- [x] 26 个 .tsx 文件迁移到 `useTranslation()` hook
+- [x] 299 处 `i18n.t()` → 74 保留 + 225 迁移到 `t()` hook
+- [x] `tsc -b` 零错误
+- [x] `npm run build` 零错误（✓ built in 17.16s）
+- [x] ESLint errors=0，any=0，unused=0
+- [x] `go build` 零错误
+- [x] Docker 部署 healthy
+

frontend/src/locales/en-US.json

@@ -4492,6 +4492,97 @@
       "userPolicyHint": "Users without any policy are not blocked (backward compatible); once assigned, only queries matching policies are allowed.",
       "assign": "Assign",
       "all": "All"
+    },
+    "lbl": {
+      "unlimited": "Unlimited",
+      "hitRate": "Hit Rate",
+      "totalDevices": "Total Devices",
+      "instances": "Instances",
+      "instanceStatus": "Instance Status",
+      "connections": "Connections",
+      "online": "Online",
+      "fragmentationRate": "Fragmentation Rate",
+      "trafficSent": "Traffic Sent",
+      "evictedKeys": "Evicted Keys",
+      "noMaxMemory": "No maxmemory configured",
+      "standalone": "Standalone",
+      "middleware": "Middleware",
+      "hostMonitor": "Host Monitor",
+      "basicMonitor": "Basic Monitor",
+      "diskMonitor": "Disk Monitor",
+      "networkMonitor": "Network Monitor",
+      "processMonitor": "Process Monitor",
+      "selectHost": "Select host...",
+      "selectHostHint": "Select a host to view metrics",
+      "coreMetrics": "Core Metrics",
+      "allMetrics": "All Metrics",
+      "cpuUsage": "CPU Usage (%)",
+      "cpuIowait": "CPU IO Wait (%)",
+      "memUsage": "Memory Usage (%)",
+      "memAvailable": "Available Memory (GB)",
+      "swapUsage": "Swap Usage (%)",
+      "load1": "System Load (1m)",
+      "diskUsage": "Disk Usage (%)",
+      "diskRead": "Disk Read (KB/s)",
+      "diskWrite": "Disk Write (KB/s)",
+      "diskIoBusy": "Disk IO Busy (%)",
+      "fdUsage": "FD Usage Rate",
+      "fdRate": "FD Usage",
+      "nicRxErrors": "NIC RX Errors",
+      "nicTxErrors": "NIC TX Errors",
+      "nicBandwidth": "NIC Bandwidth",
+      "saving": "Saving...",
+      "allPortsReport": "All discovered ports are reported, any port change triggers alert + recovery.",
+      "selectedOnlyReport": "Only selected port changes are reported, others are silently ignored. System process ports are not alerted by default.",
+      "whitelistAutoReport": "In whitelist mode, all ports are automatically reported",
+      "nameIpRequired": "Name and IP are required",
+      "updateSuccess": "Updated successfully",
+      "editMw": "Edit Middleware",
+      "addMw": "Add Middleware",
+      "siteProbe": "Site Probe",
+      "availability24h": "Availability (24h)",
+      "totalProbes": "Total Probes",
+      "editTask": "Edit Probe Task",
+      "addProbe": "Add Probe",
+      "editProbe": "Edit Probe",
+      "deleteProbe": "Delete Probe",
+      "selectTemplate": "Select Template",
+      "deleteMonitor": "Delete Monitor",
+      "partialFail": "Partial Failure",
+      "defaultAdded": "Default monitoring added",
+      "defaultExists": "Default target already exists",
+      "collectDone": "Collection completed",
+      "deleteFail": "Delete failed",
+      "nameAddrRequired": "Name and address are required",
+      "taskUpdated": "Task updated",
+      "taskCreated": "Probe task created",
+      "taskDeleted": "Task deleted",
+      "totalTasks": "Total Tasks",
+      "noTasks": "No probe tasks",
+      "noFilteredTasks": "No tasks match current filter",
+      "urlPlaceholder": "e.g., Homepage",
+      "probeDone": "Probe completed",
+      "probeFail": "Probe failed",
+      "metricDetail": "Metric Details",
+      "notDetected": "Not Detected",
+      "snmpTitle": "Network Device / BMC Collection & Trends",
+      "fillRequired": "Please fill device name, IP and select OID template",
+      "deviceAdded": "Device added",
+      "collectFail": "Collection failed",
+      "demoSwitch": "Core-Switch-A",
+      "oidTemplate": "OID Template",
+      "device": "Device",
+      "centerSubtitle": "Comprehensive infrastructure & application monitoring",
+      "explorerTitle": "Metrics Explorer",
+      "searchMetrics": "Search metrics...",
+      "explorerSubtitle": "Browse all metrics by category/host, supports overlay comparison",
+      "loadingTargets": "Loading targets...",
+      "selectTarget": "Please select a target",
+      "selectHint": "After selecting a target host, check metrics from the left panel",
+      "selectMetricsHint": "Please check metrics from the left panel",
+      "probeName": "Probe Name",
+      "execCommand": "Execute Command",
+      "refreshing": " · Refreshing..."
     }
   },
   "task": {

frontend/src/locales/zh-CN.json

@@ -4492,6 +4492,97 @@
       "userPolicyHint": "用户未分配任何策略时不拦截（向后兼容）；分配后仅允许命中策略的查询。",
       "assign": "分配",
       "all": "全部"
+    },
+    "lbl": {
+      "unlimited": "无限制",
+      "hitRate": "命中率",
+      "totalDevices": "设备总数",
+      "instances": "监控实例",
+      "instanceStatus": "实例状态",
+      "connections": "连接",
+      "online": "在线",
+      "fragmentationRate": "碎片率",
+      "trafficSent": "发送流量",
+      "evictedKeys": "逐出 Key",
+      "noMaxMemory": "未配置 maxmemory",
+      "standalone": "单机",
+      "middleware": "中间件",
+      "hostMonitor": "主机监控",
+      "basicMonitor": "基础监控",
+      "diskMonitor": "磁盘监控",
+      "networkMonitor": "网络监控",
+      "processMonitor": "进程监控",
+      "selectHost": "选择主机...",
+      "selectHostHint": "选择主机查看监控指标",
+      "coreMetrics": "核心指标",
+      "allMetrics": "全部指标",
+      "cpuUsage": "CPU 使用率(%)",
+      "cpuIowait": "CPU IO等待(%)",
+      "memUsage": "内存使用率(%)",
+      "memAvailable": "可用内存(GB)",
+      "swapUsage": "Swap 使用率(%)",
+      "load1": "系统负载(1m)",
+      "diskUsage": "磁盘使用率(%)",
+      "diskRead": "磁盘读取(KB/s)",
+      "diskWrite": "磁盘写入(KB/s)",
+      "diskIoBusy": "磁盘IO繁忙度(%)",
+      "fdUsage": "FD 文件句柄使用率",
+      "fdRate": "FD 使用率",
+      "nicRxErrors": "网卡接收错误",
+      "nicTxErrors": "网卡发送错误",
+      "nicBandwidth": "网卡带宽吞吐",
+      "saving": "保存中…",
+      "allPortsReport": "所有发现的端口都上报，任意端口变化都会触发告警 + 恢复通知。",
+      "selectedOnlyReport": "仅上报选中端口的变化，其余端口变化静默忽略。系统进程端口默认不告警。",
+      "whitelistAutoReport": "白名单模式下所有端口自动上报",
+      "nameIpRequired": "请填写名称和 IP",
+      "updateSuccess": "更新成功",
+      "editMw": "编辑中间件",
+      "addMw": "添加中间件",
+      "siteProbe": "站点拨测",
+      "availability24h": "可用率(24h)",
+      "totalProbes": "探测次数",
+      "editTask": "编辑拨测任务",
+      "addProbe": "添加探针",
+      "editProbe": "编辑探针",
+      "deleteProbe": "删除探针",
+      "selectTemplate": "选择模板",
+      "deleteMonitor": "删除监控",
+      "partialFail": "部分失败",
+      "defaultAdded": "已添加默认监控",
+      "defaultExists": "默认目标已存在",
+      "collectDone": "采集完成",
+      "deleteFail": "删除失败",
+      "nameAddrRequired": "名称和地址不能为空",
+      "taskUpdated": "任务已更新",
+      "taskCreated": "拨测任务已创建",
+      "taskDeleted": "任务已删除",
+      "totalTasks": "总任务",
+      "noTasks": "暂无拨测任务",
+      "noFilteredTasks": "当前筛选无任务",
+      "urlPlaceholder": "例如：官网首页",
+      "probeDone": "拨测完成",
+      "probeFail": "拨测失败",
+      "metricDetail": "指标详情",
+      "notDetected": "未检测",
+      "snmpTitle": "网络设备 / BMC 采集与趋势",
+      "fillRequired": "请填写设备名称、IP 并选择 OID 模板",
+      "deviceAdded": "设备已添加",
+      "collectFail": "采集失败",
+      "demoSwitch": "核心交换机-A",
+      "oidTemplate": "OID 模板",
+      "device": "设备",
+      "centerSubtitle": "全面的基础设施与应用监控",
+      "explorerTitle": "指标浏览器",
+      "searchMetrics": "搜索指标...",
+      "explorerSubtitle": "按分类/主机浏览所有指标，支持叠加对比",
+      "loadingTargets": "加载监控目标...",
+      "selectTarget": "请选择监控目标",
+      "selectHint": "选择目标主机后，从左侧勾选要查看的指标",
+      "selectMetricsHint": "请从左侧勾选指标",
+      "probeName": "探针名称",
+      "execCommand": "执行命令",
+      "refreshing": " · 刷新中..."
     }
   },
   "task": {

frontend/src/pages/monitor/HostMonitor.tsx

@@ -26,12 +26,13 @@ import { NetworkTab } from './host-monitor/tabs/NetworkTab';
 import { PortMonitorTab } from './host-monitor/tabs/PortMonitorTab';
 import { ProcessTab } from './host-monitor/tabs/ProcessTab';
 import type { JsonData } from '@/types/common';
+import { useTranslation } from 'react-i18next';
 import i18n from '@/i18n';
 
 const TABS = [
-  { id: 'basic', label: i18n.t('基础监控'), icon: <Monitor className="w-3.5 h-3.5" /> },
+  { id: 'basic', label: i18n.t('monitor.lbl.basicMonitor'), icon: <Monitor className="w-3.5 h-3.5" /> },
-  { id: 'disk', label: i18n.t('磁盘监控'), icon: <HardDrive className="w-3.5 h-3.5" /> },
+  { id: 'disk', label: i18n.t('monitor.lbl.diskMonitor'), icon: <HardDrive className="w-3.5 h-3.5" /> },
-  { id: 'network', label: i18n.t('网络监控'), icon: <Network className="w-3.5 h-3.5" /> },
+  { id: 'network', label: i18n.t('monitor.lbl.networkMonitor'), icon: <Network className="w-3.5 h-3.5" /> },
   { id: 'ports', label: i18n.t('agent.portMonitor'), icon: <Server className="w-3.5 h-3.5" /> },
   { id: 'process', label: i18n.t('monitor.hostProcess'), icon: <List className="w-3.5 h-3.5" /> },
   { id: 'system', label: i18n.t('system.systemInfo'), icon: <Info className="w-3.5 h-3.5" /> },
@@ -39,6 +40,7 @@ const TABS = [
 ];
 
 export function HostMonitor({ embedded = false }: { embedded?: boolean }) {
+  const { t } = useTranslation();
   const qc = useQueryClient();
   const [searchParams] = useSearchParams();
   const urlHost = searchParams.get('host') || '';
@@ -118,7 +120,7 @@ export function HostMonitor({ embedded = false }: { embedded?: boolean }) {
       <div className="flex items-center gap-2">
         <Select value={selectedHost} onValueChange={setSelectedHost}>
           <SelectTrigger className="w-52 h-8 text-xs dg-input">
-            <SelectValue placeholder={i18n.t('选择主机...')} />
+            <SelectValue placeholder={t('monitor.lbl.selectHost')} />
           </SelectTrigger>
           <SelectContent className="dg-input">
             {hosts.map((h: JsonData) => (
@@ -128,7 +130,7 @@ export function HostMonitor({ embedded = false }: { embedded?: boolean }) {
         </Select>
         {serverInfo && (
           <span className="text-xs dg-text-muted">
-            {String(serverInfo.os || '')}{serverInfo.cpu_cores ? ` | ${serverInfo.cpu_cores as number | string} ${i18n.t('monitor.hostMonitorPanel.cores')}` : ''}{serverInfo.mem_total ? ` | ${(serverInfo.mem_total as number).toFixed(0)}GB` : ''}
+            {String(serverInfo.os || '')}{serverInfo.cpu_cores ? ` | ${serverInfo.cpu_cores as number | string} ${t('monitor.hostMonitorPanel.cores')}` : ''}{serverInfo.mem_total ? ` | ${(serverInfo.mem_total as number).toFixed(0)}GB` : ''}
           </span>
         )}
       </div>
@@ -136,15 +138,15 @@ export function HostMonitor({ embedded = false }: { embedded?: boolean }) {
         <Select value={aggType} onValueChange={(v) => setAggType(v as AggType)}>
           <SelectTrigger className="w-24 h-7 text-xs dg-input"><SelectValue /></SelectTrigger>
           <SelectContent className="dg-input">
-            <SelectItem value="avg"> {i18n.t('选择主机...')} </SelectItem>
+            <SelectItem value="avg"> {t('monitor.lbl.selectHost')} </SelectItem>
-            <SelectItem value="max"> {i18n.t('选择主机...')} </SelectItem>
+            <SelectItem value="max"> {t('monitor.lbl.selectHost')} </SelectItem>
-            <SelectItem value="min"> {i18n.t('选择主机...')} </SelectItem>
+            <SelectItem value="min"> {t('monitor.lbl.selectHost')} </SelectItem>
           </SelectContent>
         </Select>
         <div className="flex flex-col items-end gap-0.5">
           <HostTimeRangePicker value={timeRange} onChange={setTimeRange} />
           {actualDataSpan && (
-            <span className="text-[10px] dg-text-muted tabular-nums">{i18n.t('monitor.hostMonitorPanel.dataSpan', { span: actualDataSpan })}</span>
+            <span className="text-[10px] dg-text-muted tabular-nums">{t('monitor.hostMonitorPanel.dataSpan', { span: actualDataSpan })}</span>
           )}
         </div>
       </div>
@@ -212,10 +214,10 @@ export function HostMonitor({ embedded = false }: { embedded?: boolean }) {
   }
 
   return (
-    <PageShell variant="workspace" title={i18n.t('monitor.alertRulesTab.catHost')}
+    <PageShell variant="workspace" title={t('monitor.alertRulesTab.catHost')}
-      subtitle={selectedHost ? `当前主机: ${selectedHost}` : i18n.t('选择主机查看监控指标')}
+      subtitle={selectedHost ? `当前主机: ${selectedHost}` : t('monitor.lbl.selectHostHint')}
       icon={<Server className="h-5 w-5" />} toolbar={toolbar}
-      loading={loading && !history.length} loadingLabel={i18n.t('monitor.hostmonitortsx.sc23e802e')}
+      loading={loading && !history.length} loadingLabel={t('monitor.hostmonitortsx.sc23e802e')}
       contentClassName="space-y-3">
       {monitorBody}
       {dialogs}

frontend/src/pages/monitor/MetricsExplorer.tsx

@@ -9,6 +9,7 @@ import { metricsApi } from '@/api';
 import { PageShell } from '@/components/layout/PageShell';
 import { PageEmpty } from '@/components/layout/PageEmpty';
 import type { JsonData } from '@/types/common';
+import { useTranslation } from 'react-i18next';
 import i18n from '@/i18n';
 
 interface TargetInfo {
@@ -34,10 +35,11 @@ const METRIC_CATEGORIES: Record<string, { label: string; icon: React.ReactNode }
   disk: { label: i18n.t('monitor.dashboard.col.disk'), icon: <HardDrive className="h-4 w-4" /> },
   network: { label: i18n.t('monitor.hostMetric.network'), icon: <Network className="h-4 w-4" /> },
   middleware: { label: i18n.t('monitor.alertRulesTab.catMiddleware'), icon: <Database className="h-4 w-4" /> },
-  device: { label: i18n.t('设备'), icon: <Activity className="h-4 w-4" /> },
+  device: { label: i18n.t('monitor.lbl.device'), icon: <Activity className="h-4 w-4" /> },
 };
 
 export function MetricsExplorer() {
+  const { t } = useTranslation();
   const [targets, setTargets] = useState<TargetInfo[]>([]);
   const [metricNames, setMetricNames] = useState<string[]>([]);
   const [selectedTarget, setSelectedTarget] = useState('');
@@ -109,7 +111,7 @@ export function MetricsExplorer() {
     <div className="flex items-center gap-4 flex-wrap w-full">
       <Select value={selectedTarget} onValueChange={setSelectedTarget}>
         <SelectTrigger className="w-64 dg-input">
-          <SelectValue placeholder={loading ? i18n.t('monitor.logPanel.logResults.loading') : i18n.t('加载中...')} />
+          <SelectValue placeholder={loading ? t('monitor.logPanel.logResults.loading') : t('common.loading')} />
         </SelectTrigger>
         <SelectContent className="dg-input max-h-80">
           {targets.map(t => (
@@ -126,7 +128,7 @@ export function MetricsExplorer() {
         <Search className="absolute left-2.5 top-2 h-4 w-4 dg-text-muted" />
         <Input
           className="pl-8 dg-input h-9"
-          placeholder={i18n.t('搜索指标...')}
+          placeholder={t('monitor.lbl.searchMetrics')}
           value={searchKw}
           onChange={(e) => setSearchKw(e.target.value)}
         />
@@ -140,19 +142,19 @@ export function MetricsExplorer() {
   return (
     <PageShell
       variant="workspace"
-      title={i18n.t('指标浏览器')}
+      title={t('monitor.lbl.explorerTitle')}
-      subtitle={i18n.t('按分类/主机浏览所有指标，支持叠加对比')}
+      subtitle={i18n.t('monitor.lbl.explorerSubtitle')}
       icon={<Activity className="h-5 w-5" />}
       toolbar={toolbar}
       loading={loading}
-      loadingLabel={i18n.t('加载监控目标...')}
+      loadingLabel={i18n.t('monitor.lbl.loadingTargets')}
       contentClassName="space-y-6"
     >
       {!selectedTarget ? (
         <PageEmpty
           icon={<Filter className="h-12 w-12" />}
-          title={i18n.t('请选择监控目标')}
+          title={i18n.t('monitor.lbl.selectTarget')}
-          description={i18n.t('选择目标主机后，从左侧勾选要查看的指标')}
+          description={i18n.t('monitor.lbl.selectHint')}
         />
       ) : (
         <div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
@@ -160,7 +162,7 @@ export function MetricsExplorer() {
             <CardContent className="p-4">
               <div className="flex items-center gap-2 mb-3">
                 <BarChart3 className="h-4 w-4 dg-text-muted" />
-                <h3 className="text-sm font-medium text-[var(--dg-text-primary)]"> {i18n.t('monitor.metricsexplorer.s3ec50388')} </h3>
+                <h3 className="text-sm font-medium text-[var(--dg-text-primary)]"> {t('monitor.metricsexplorer.s3ec50388')} </h3>
                 <span className="text-xs dg-text-muted ml-auto">{selectedMetrics.length} 已选</span>
               </div>
               <div className="space-y-4 max-h-[60vh] overflow-y-auto">
@@ -205,9 +207,9 @@ export function MetricsExplorer() {
                 </h3>
               </div>
               {selectedMetrics.length === 0 ? (
-                <PageEmpty icon={<Plus className="h-8 w-8" />} title={i18n.t('请从左侧勾选指标')} className="py-16" />
+                <PageEmpty icon={<Plus className="h-8 w-8" />} title={i18n.t('monitor.lbl.selectMetricsHint')} className="py-16" />
               ) : sortedTimes.length === 0 ? (
-                <PageEmpty title={i18n.t('aiops.assistantNoData')} className="py-16" />
+                <PageEmpty title={t('aiops.assistantNoData')} className="py-16" />
               ) : (
                 <div className="h-80 overflow-x-auto">
                   <svg viewBox={`0 0 ${Math.max(sortedTimes.length * 4, 400)} 300`} className="w-full h-full min-w-[400px]">

frontend/src/pages/monitor/MiddlewareMonitor.tsx

@@ -12,7 +12,7 @@ import { InstanceCard } from './middleware-monitor/InstanceCard';
 import { MiddlewareDialog } from './middleware-monitor/MiddlewareDialog';
 import type { MwTarget } from './middleware-monitor/helpers';
 import { REDIS_CHARTS, MYSQL_CHARTS, evalMwHealth, worstHealthLevel } from './middleware-monitor/helpers';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 type TabKey = 'redis' | 'mysql';
 const REFRESH_INTERVAL_MS = 30_000;
@@ -20,6 +20,7 @@ const REFRESH_INTERVAL_MS = 30_000;
 interface MwListResponse { list: MwTarget[]; total: number }
 
 export function MiddlewareMonitor() {
+  const { t } = useTranslation();
   const confirm = useConfirm();
   const [targets, setTargets] = useState<MwTarget[]>([]);
   const [loading, setLoading] = useState(true);
@@ -62,7 +63,7 @@ export function MiddlewareMonitor() {
       hasLoaded.current = true;
     } catch (err) {
       if (!silent) {
-        setError((err as { message?: string }).message || i18n.t('kubernetes.msg.loadFailed'));
+        setError((err as { message?: string }).message || t('kubernetes.msg.loadFailed'));
         setTargets([]);
       }
     } finally {
@@ -86,14 +87,14 @@ export function MiddlewareMonitor() {
   const warnCount = targets.filter((t) => worstHealthLevel(evalMwHealth(t)) !== 'ok').length;
 
   const handleDelete = async (target: MwTarget) => {
-    const ok = await confirm({ title: i18n.t('删除监控'), description: `确认删除 "${target.name}"？`, confirmText: i18n.t('kubernetes.storage.delete2') });
+    const ok = await confirm({ title: t('monitor.lbl.deleteMonitor'), description: `确认删除 "${target.name}"？`, confirmText: t('kubernetes.storage.delete2') });
     if (!ok) return;
     try {
       await middlewareMonitorApi.delete(target.id);
-      toast.success(i18n.t('monitor.silenceRules.deleted'));
+      toast.success(t('monitor.silenceRules.deleted'));
       loadTargets();
     } catch (err) {
-      toast.error(i18n.t('kubernetes.msg.deleteFailed2'), { description: (err as { message?: string }).message });
+      toast.error(t('kubernetes.msg.deleteFailed2'), { description: (err as { message?: string }).message });
     }
   };
 
@@ -101,10 +102,10 @@ export function MiddlewareMonitor() {
     setTesting(target.id);
     try {
       const res = await middlewareMonitorApi.test(target.id) as { success: boolean; message: string };
-      if (res.success) { toast.success(i18n.t('aiops.llmTestSuccess'), { description: res.message }); loadTargets(true); }
+      if (res.success) { toast.success(t('aiops.llmTestSuccess'), { description: res.message }); loadTargets(true); }
-      else toast.error(i18n.t('aiops.llmTestFailed'), { description: res.message });
+      else toast.error(t('aiops.llmTestFailed'), { description: res.message });
     } catch (err) {
-      toast.error(i18n.t('monitor.alertChannels.testFailed'), { description: (err as { message?: string }).message });
+      toast.error(t('monitor.alertChannels.testFailed'), { description: (err as { message?: string }).message });
     } finally {
       setTesting(null);
     }
@@ -115,11 +116,11 @@ export function MiddlewareMonitor() {
     try {
       const res = await middlewareMonitorApi.seedDefaults() as { created: number; message: string; failed?: string[] };
       await loadTargets();
-      if (res.failed?.length) toast.error(i18n.t('部分失败'), { description: res.message });
+      if (res.failed?.length) toast.error(t('monitor.lbl.partialFail'), { description: res.message });
-      else if (res.created > 0) toast.success(i18n.t('已添加默认监控'), { description: res.message });
+      else if (res.created > 0) toast.success(t('monitor.lbl.defaultAdded'), { description: res.message });
-      else toast.success(i18n.t('默认目标已存在'));
+      else toast.success(t('monitor.lbl.defaultExists'));
     } catch (err) {
-      toast.error(i18n.t('monitor.dashboard.custom.toastPanelFailed'), { description: (err as { message?: string }).message });
+      toast.error(t('monitor.dashboard.custom.toastPanelFailed'), { description: (err as { message?: string }).message });
     } finally {
       setSeeding(false);
     }
@@ -128,10 +129,10 @@ export function MiddlewareMonitor() {
   const handleCollectNow = async () => {
     try {
       const res = await middlewareMonitorApi.collectNow() as { message: string };
-      toast.success(i18n.t('采集完成'), { description: res.message });
+      toast.success(t('monitor.lbl.collectDone'), { description: res.message });
       loadTargets(true);
     } catch (err) {
-      toast.error(i18n.t('删除失败'), { description: (err as { message?: string }).message });
+      toast.error(t('monitor.lbl.deleteFail'), { description: (err as { message?: string }).message });
     }
   };
 
@@ -149,13 +150,13 @@ export function MiddlewareMonitor() {
     <div className="space-y-6">
       <div className="flex items-center justify-between flex-wrap gap-2">
         <div>
-          <h2 className="text-lg font-semibold"> {i18n.t('monitor.alertHelper.srcMiddleware')} </h2>
+          <h2 className="text-lg font-semibold"> {t('monitor.alertHelper.srcMiddleware')} </h2>
           <p className="text-xs text-[var(--dg-text-muted)] mt-0.5">
             Redis 单机/集群 · MySQL · 30s 自动刷新
             {lastRefreshAt && (
               <span className="ml-2">
                 上次更新 {lastRefreshAt.toLocaleTimeString()}
-                {refreshing && i18n.t(' · 刷新中...')}
+                {refreshing && t('monitor.lbl.refreshing')}
               </span>
             )}
           </p>
@@ -193,10 +194,10 @@ export function MiddlewareMonitor() {
         <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
           <CardContent className="p-12 text-center">
             <Database className="h-12 w-12 mx-auto mb-4 text-[var(--dg-text-muted)]" />
-            <p className="text-sm text-[var(--dg-text-muted)]"> {i18n.t('monitor.middlewaremonit.sbbe62a10')} </p>
+            <p className="text-sm text-[var(--dg-text-muted)]"> {t('monitor.middlewaremonit.sbbe62a10')} </p>
             <div className="flex justify-center gap-2 mt-4">
-              <Button size="sm" onClick={handleSeedDefaults} disabled={seeding}> {i18n.t('monitor.middlewaremonit.se5caf12b')} </Button>
+              <Button size="sm" onClick={handleSeedDefaults} disabled={seeding}> {t('monitor.middlewaremonit.se5caf12b')} </Button>
-              <Button size="sm" variant="outline" onClick={() => openCreate()}> {i18n.t('monitor.middlewaremonit.s63edd678')} </Button>
+              <Button size="sm" variant="outline" onClick={() => openCreate()}> {t('monitor.middlewaremonit.s63edd678')} </Button>
             </div>
           </CardContent>
         </Card>
@@ -206,9 +207,9 @@ export function MiddlewareMonitor() {
         <>
           <div className="grid grid-cols-2 md:grid-cols-5 gap-3">
             {[
-              { label: i18n.t('监控实例'), value: targets.length, icon: Activity },
+              { label: t('monitor.lbl.instances'), value: targets.length, icon: Activity },
-              { label: i18n.t('agent.agentOnline'), value: onlineCount, icon: Database, color: 'dg-text-green' },
+              { label: t('agent.agentOnline'), value: onlineCount, icon: Database, color: 'dg-text-green' },
-              { label: i18n.t('monitor.hostDashboard.alert'), value: warnCount, icon: Activity, color: warnCount > 0 ? 'dg-text-yellow' : 'dg-text-green' },
+              { label: t('monitor.hostDashboard.alert'), value: warnCount, icon: Activity, color: warnCount > 0 ? 'dg-text-yellow' : 'dg-text-green' },
               { label: 'Redis', value: redisTargets.length, icon: Database, color: 'dg-text-red' },
               { label: 'MySQL', value: mysqlTargets.length, icon: Server, color: 'dg-text-blue' },
             ].map((item) => (
@@ -251,7 +252,7 @@ export function MiddlewareMonitor() {
             <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
               <CardContent className="p-8 text-center text-sm text-[var(--dg-text-muted)]">
                 暂无 {tab === 'redis' ? 'Redis' : 'MySQL'} 实例，
-                <button type="button" className="dg-text-cyan ml-1 underline" onClick={() => openCreate(tab)}> {i18n.t('monitor.middlewaremonit.s8ec8a6e8')} </button>
+                <button type="button" className="dg-text-cyan ml-1 underline" onClick={() => openCreate(tab)}> {t('monitor.middlewaremonit.s8ec8a6e8')} </button>
               </CardContent>
             </Card>
           ) : (

frontend/src/pages/monitor/MonitorCenter.tsx

@@ -7,15 +7,16 @@ import { HostMonitor } from './HostMonitor';
 import { MiddlewareMonitor } from './MiddlewareMonitor';
 import { SNMPMonitor } from './SNMPMonitor';
 import { SiteMonitor } from './SiteMonitor';
+import { useTranslation } from 'react-i18next';
 import i18n from '@/i18n';
 
 type TabId = 'host' | 'middleware' | 'snmp' | 'site';
 
 const tabs: { id: TabId; name: string; description: string }[] = [
-  { id: 'host', name: i18n.t('monitor.alertRulesTab.catHost'), description: i18n.t('主机监控') },
+  { id: 'host', name: i18n.t('monitor.alertRulesTab.catHost'), description: i18n.t('monitor.lbl.hostMonitor') },
-  { id: 'middleware', name: i18n.t('monitor.alertRulesTab.catMiddleware'), description: i18n.t('中间件') },
+  { id: 'middleware', name: i18n.t('monitor.alertRulesTab.catMiddleware'), description: i18n.t('monitor.lbl.middleware') },
-  { id: 'snmp', name: 'SNMP', description: i18n.t('网络设备 / BMC 采集与趋势') },
+  { id: 'snmp', name: 'SNMP', description: i18n.t('monitor.lbl.snmpTitle') },
-  { id: 'site', name: i18n.t('monitor.alertRulesTab.catSite'), description: i18n.t('站点拨测') },
+  { id: 'site', name: i18n.t('monitor.alertRulesTab.catSite'), description: i18n.t('monitor.lbl.siteProbe') },
 ];
 
 const TAB_IDS: TabId[] = ['host', 'middleware', 'snmp', 'site'];
@@ -25,6 +26,7 @@ function parseTab(raw: string | null): TabId {
 }
 
 export function MonitorCenter() {
+  const { t } = useTranslation();
   const [searchParams, setSearchParams] = useSearchParams();
   const [activeTab, setActiveTab] = useState<TabId>(() => parseTab(searchParams.get('tab')));
 
@@ -43,8 +45,8 @@ export function MonitorCenter() {
   return (
     <PageShell
       variant="list"
-      title={i18n.t('monitor.title')}
+      title={t('monitor.title')}
-      subtitle={current?.description ?? i18n.t('全面的基础设施与应用监控')}
+      subtitle={current?.description ?? t('monitor.lbl.centerSubtitle')}
       icon={<Activity className="h-5 w-5" />}
       tabs={tabs.map((t) => ({ id: t.id, label: t.name }))}
       activeTab={activeTab}

frontend/src/pages/monitor/SNMPMonitor.tsx

@@ -21,7 +21,7 @@ import { SnmpOverviewCharts } from './snmp-monitor/SnmpOverviewCharts';
 import { SnmpDeviceChartsPanel } from './snmp-monitor/SnmpDeviceChartsPanel';
 import { SnmpTemplatesCollapsible, type SnmpTemplate } from './snmp-monitor/SnmpTemplatesCollapsible';
 import type { SnmpDevice, SnmpMetric, SnmpOverviewItem } from './snmp-monitor/helpers';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 interface SnmpStats { total: number; online: number; abnormal: number }
 
@@ -38,6 +38,7 @@ const keyMetrics = [
 ];
 
 export function SNMPMonitor() {
+  const { t } = useTranslation();
   const [stats, setStats] = useState<SnmpStats>({ total: 0, online: 0, abnormal: 0 });
   const [devices, setDevices] = useState<SnmpDevice[]>([]);
   const [overview, setOverview] = useState<SnmpOverviewItem[]>([]);
@@ -105,7 +106,7 @@ export function SNMPMonitor() {
 
   const handleAdd = async () => {
     if (!form.name.trim() || !form.ip.trim() || !form.template_id) {
-      toast.error(i18n.t('请填写设备名称、IP 并选择 OID 模板'));
+      toast.error(t('monitor.lbl.fillRequired'));
       return;
     }
     setSubmitting(true);
@@ -118,12 +119,12 @@ export function SNMPMonitor() {
         template_id: Number(form.template_id),
         vendor: tpl?.vendor || '', device_type: tpl?.device_type || 'switch',
       });
-      toast.success(i18n.t('设备已添加'));
+      toast.success(t('monitor.lbl.deviceAdded'));
       setDialogOpen(false);
       setForm({ ...emptyForm });
       refresh();
     } catch (e) {
-      toast.error((e as { message?: string }).message || i18n.t('monitor.dashboard.custom.toastPanelFailed'));
+      toast.error((e as { message?: string }).message || t('monitor.dashboard.custom.toastPanelFailed'));
     } finally {
       setSubmitting(false);
     }
@@ -137,7 +138,7 @@ export function SNMPMonitor() {
       toast.success(`${d.name} 采集成功`);
       refresh();
     } catch (err) {
-      toast.error((err as { message?: string }).message || i18n.t('采集失败'));
+      toast.error((err as { message?: string }).message || t('monitor.lbl.collectFail'));
       refresh();
     } finally {
       setCollectingId(null);
@@ -163,18 +164,18 @@ export function SNMPMonitor() {
     e.stopPropagation();
     try {
       await snmpApi.deleteDevice(id);
-      toast.success(i18n.t('monitor.silenceRules.deleted'));
+      toast.success(t('monitor.silenceRules.deleted'));
       if (selectedDevice?.id === id) setSelectedDevice(null);
       refresh();
     } catch {
-      toast.error(i18n.t('kubernetes.msg.deleteFailed2'));
+      toast.error(t('kubernetes.msg.deleteFailed2'));
     }
   };
 
   const statusBadge = (status?: string) => {
-    if (status === 'online') return <Badge className="bg-emerald-500/15 dg-text-green border-emerald-500/30"> {i18n.t('agent.agentOnline')} </Badge>;
+    if (status === 'online') return <Badge className="bg-emerald-500/15 dg-text-green border-emerald-500/30"> {t('agent.agentOnline')} </Badge>;
-    if (status === 'error') return <Badge className="bg-red-500/15 dg-text-red border-red-500/30"> {i18n.t('agent.heartbeatAbnormal')} </Badge>;
+    if (status === 'error') return <Badge className="bg-red-500/15 dg-text-red border-red-500/30"> {t('agent.heartbeatAbnormal')} </Badge>;
-    return <Badge className="bg-[var(--dg-bg-active)]/15 dg-text-secondary border-[var(--dg-border)]"> {i18n.t('agent.agentOffline')} </Badge>;
+    return <Badge className="bg-[var(--dg-bg-active)]/15 dg-text-secondary border-[var(--dg-border)]"> {t('agent.agentOffline')} </Badge>;
   };
 
   return (
@@ -197,13 +198,13 @@ export function SNMPMonitor() {
             </DialogTrigger>
             <DialogContent className="sm:max-w-md bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
               <DialogHeader>
-                <DialogTitle> {i18n.t('monitor.snmpmonitortsx.s29b90990')} </DialogTitle>
+                <DialogTitle> {t('monitor.snmpmonitortsx.s29b90990')} </DialogTitle>
-                <DialogDescription> {i18n.t('monitor.snmpmonitortsx.s11ea7d0c')} </DialogDescription>
+                <DialogDescription> {t('monitor.snmpmonitortsx.s11ea7d0c')} </DialogDescription>
               </DialogHeader>
               <div className="grid gap-3 py-2">
                 <div className="grid gap-1.5">
-                  <Label> {i18n.t('monitor.snmpmonitortsx.s9f694f60')} </Label>
+                  <Label> {t('monitor.snmpmonitortsx.s9f694f60')} </Label>
-                  <Input value={form.name} onChange={(e) => setForm({ ...form, name: e.target.value })} placeholder={i18n.t('核心交换机-A')} />
+                  <Input value={form.name} onChange={(e) => setForm({ ...form, name: e.target.value })} placeholder={t('monitor.lbl.demoSwitch')} />
                 </div>
                 <div className="grid grid-cols-2 gap-3">
                   <div className="grid gap-1.5">
@@ -211,14 +212,14 @@ export function SNMPMonitor() {
                     <Input value={form.ip} onChange={(e) => setForm({ ...form, ip: e.target.value })} placeholder="192.168.1.1" />
                   </div>
                   <div className="grid gap-1.5">
-                    <Label> {i18n.t('system.ldapPort')} </Label>
+                    <Label> {t('system.ldapPort')} </Label>
                     <Input type="number" value={form.port} onChange={(e) => setForm({ ...form, port: Number(e.target.value) || 161 })} />
                   </div>
                 </div>
                 <div className="grid gap-1.5">
                   <Label>OID 模板</Label>
                   <Select value={form.template_id} onValueChange={(v) => setForm({ ...form, template_id: v })}>
-                    <SelectTrigger><SelectValue placeholder={i18n.t('pipeline.selectTemplate')} /></SelectTrigger>
+                    <SelectTrigger><SelectValue placeholder={t('pipeline.selectTemplate')} /></SelectTrigger>
                     <SelectContent>
                       {templates.map((t) => (
                         <SelectItem key={t.id} value={String(t.id)}>{t.name} ({t.vendor})</SelectItem>
@@ -244,7 +245,7 @@ export function SNMPMonitor() {
                 </div>
               </div>
               <DialogFooter>
-                <Button variant="outline" onClick={() => setDialogOpen(false)}> {i18n.t('rbac.jobRole.cancel')} </Button>
+                <Button variant="outline" onClick={() => setDialogOpen(false)}> {t('rbac.jobRole.cancel')} </Button>
                 <Button onClick={handleAdd} disabled={submitting}>
                   {submitting && <Loader2 className="h-4 w-4 animate-spin mr-1" />}确认
                 </Button>
@@ -257,10 +258,10 @@ export function SNMPMonitor() {
       {/* 紧凑统计 */}
       <div className="grid grid-cols-2 md:grid-cols-4 gap-2">
         {[
-          { label: i18n.t('设备总数'), value: stats.total, color: '' },
+          { label: t('monitor.lbl.totalDevices'), value: stats.total, color: '' },
-          { label: i18n.t('agent.agentOnline'), value: stats.online, color: 'dg-text-green' },
+          { label: t('agent.agentOnline'), value: stats.online, color: 'dg-text-green' },
-          { label: i18n.t('agent.heartbeatAbnormal'), value: stats.abnormal, color: 'dg-text-red' },
+          { label: t('agent.heartbeatAbnormal'), value: stats.abnormal, color: 'dg-text-red' },
-          { label: i18n.t('OID 模板'), value: templates.length, color: 'dg-text-cyan' },
+          { label: t('monitor.lbl.oidTemplate'), value: templates.length, color: 'dg-text-cyan' },
         ].map((item) => (
           <div key={item.label} className="rounded-lg border border-[var(--dg-border)] bg-[var(--dg-bg-secondary)] px-3 py-2 text-center">
             <p className="text-[10px] text-[var(--dg-text-muted)]">{item.label}</p>
@@ -293,9 +294,9 @@ export function SNMPMonitor() {
                   <Table>
                     <TableHeader>
                       <TableRow>
-                        <TableHead className="text-xs"> {i18n.t('kubernetes.secret.secretName')} </TableHead>
+                        <TableHead className="text-xs"> {t('kubernetes.secret.secretName')} </TableHead>
                         <TableHead className="text-xs">IP</TableHead>
-                        <TableHead className="text-xs"> {i18n.t('system.terminalStatus')} </TableHead>
+                        <TableHead className="text-xs"> {t('system.terminalStatus')} </TableHead>
                         <TableHead className="w-24" />
                       </TableRow>
                     </TableHeader>
@@ -351,7 +352,7 @@ export function SNMPMonitor() {
             <DialogDescription>{metricsDevice?.ip} · {templateName(metricsDevice?.template_id || 0)}</DialogDescription>
           </DialogHeader>
           {metricsLoading ? (
-            <div className="py-8 text-center text-sm text-muted-foreground"> {i18n.t('monitor.logPanel.logResults.loading')} </div>
+            <div className="py-8 text-center text-sm text-muted-foreground"> {t('monitor.logPanel.logResults.loading')} </div>
           ) : metrics.length === 0 ? (
             <div className="py-8 text-center text-sm text-muted-foreground">
               暂无指标，请先采集
@@ -372,7 +373,7 @@ export function SNMPMonitor() {
               <Table>
                 <TableHeader>
                   <TableRow>
-                    <TableHead> {i18n.t('cloud.colMetric')} </TableHead><TableHead> {i18n.t('monitor.logIndex')} </TableHead><TableHead>值</TableHead><TableHead>OID</TableHead>
+                    <TableHead> {t('cloud.colMetric')} </TableHead><TableHead> {t('monitor.logIndex')} </TableHead><TableHead>值</TableHead><TableHead>OID</TableHead>
                   </TableRow>
                 </TableHeader>
                 <TableBody>

frontend/src/pages/monitor/SiteMonitor.tsx

@@ -23,6 +23,7 @@ import { useConfirm } from '@/components/ui/confirm-dialog';
 import type { JsonData } from '@/types/common';
 import { SiteProtocolPieChart } from './site-monitor/SiteProtocolPieChart';
 import { SiteTaskDetailPage } from './site-monitor/SiteTaskDetailPage';
+import { useTranslation } from 'react-i18next';
 import i18n from '@/i18n';
 import {
   PROBE_TYPE_OPTIONS, type ProbeType, type SiteStats, type SiteTask,
@@ -50,6 +51,7 @@ function alertStatusBadge(status?: string) {
 }
 
 export function SiteMonitor() {
+  const { t } = useTranslation();
   const [searchParams, setSearchParams] = useSearchParams();
   const taskIdParam = searchParams.get('task');
   const [stats, setStats] = useState<SiteStats | null>(null);
@@ -137,7 +139,7 @@ export function SiteMonitor() {
   };
 
   const handleSave = async () => {
-    if (!form.name.trim() || !form.url.trim()) { toast.error(i18n.t('名称和地址不能为空')); return; }
+    if (!form.name.trim() || !form.url.trim()) { toast.error(t('monitor.lbl.nameAddrRequired')); return; }
     setSaving(true);
     const payload = {
       name: form.name.trim(), url: form.url.trim(), type: form.type.toLowerCase(),
@@ -146,34 +148,34 @@ export function SiteMonitor() {
       expected_status_code: Number(form.expected_status_code) || 200,
     };
     try {
-      if (editingTaskId) { await siteApi.updateTask(editingTaskId, payload); toast.success(i18n.t('任务已更新')); }
+      if (editingTaskId) { await siteApi.updateTask(editingTaskId, payload); toast.success(t('monitor.lbl.taskUpdated')); }
-      else { await siteApi.createTask(payload); toast.success(i18n.t('拨测任务已创建')); }
+      else { await siteApi.createTask(payload); toast.success(t('monitor.lbl.taskCreated')); }
       setFormOpen(false); setEditingTaskId(null);
       loadTasks(); loadStats();
     } catch (e) {
-      toast.error((e as JsonData).message || (editingTaskId ? i18n.t('kubernetes.deployment.imageUpdateFailed') : i18n.t('monitor.dashboard.custom.toastCreateFailed')));
+      toast.error((e as JsonData).message || (editingTaskId ? t('kubernetes.deployment.imageUpdateFailed') : t('monitor.dashboard.custom.toastCreateFailed')));
     } finally { setSaving(false); }
   };
 
   const handleDelete = async (task: SiteTask) => {
-    const ok = await _confirm({ title: i18n.t('monitor.deleteProbe'), description: `确定删除「${task.name}」吗？`, variant: 'destructive' });
+    const ok = await _confirm({ title: t('monitor.deleteProbe'), description: `确定删除「${task.name}」吗？`, variant: 'destructive' });
     if (!ok) return;
     try {
       await siteApi.deleteTask(task.id);
       if (taskIdParam === String(task.id)) {
         closeDetail();
       }
-      toast.success(i18n.t('任务已删除'));
+      toast.success(t('monitor.lbl.taskDeleted'));
       loadTasks(); loadStats();
-    } catch (e) { toast.error((e as JsonData).message || i18n.t('kubernetes.msg.deleteFailed2')); }
+    } catch (e) { toast.error((e as JsonData).message || t('kubernetes.msg.deleteFailed2')); }
   };
 
   const handleToggle = async (task: SiteTask) => {
     try {
       await siteApi.toggleTask(task.id, !task.enabled);
-      toast.success(task.enabled ? i18n.t('cloud.stopped') : i18n.t('aiops.llmEnabled'));
+      toast.success(task.enabled ? t('cloud.stopped') : t('aiops.llmEnabled'));
       loadTasks(); loadStats();
-    } catch (e) { toast.error((e as JsonData).message || i18n.t('cloud.operationFailed')); }
+    } catch (e) { toast.error((e as JsonData).message || t('cloud.operationFailed')); }
   };
 
   const targetMeta = probeTypeMeta[form.type];
@@ -192,8 +194,8 @@ export function SiteMonitor() {
     if (!detailTask) {
       return (
         <div className="space-y-4 text-center py-16">
-          <p className="text-sm text-[var(--dg-text-muted)]"> {i18n.t('monitor.sitemonitortsx.s62a0023a')} </p>
+          <p className="text-sm text-[var(--dg-text-muted)]"> {t('monitor.sitemonitortsx.s62a0023a')} </p>
-          <Button variant="outline" size="sm" onClick={closeDetail}> {i18n.t('monitor.siteTask.backToList')} </Button>
+          <Button variant="outline" size="sm" onClick={closeDetail}> {t('monitor.siteTask.backToList')} </Button>
         </div>
       );
     }
@@ -210,7 +212,7 @@ export function SiteMonitor() {
     <div className="space-y-4">
       <div className="flex items-center justify-between flex-wrap gap-2">
         <div>
-          <h2 className="text-lg font-semibold"> {i18n.t('monitor.alertRulesTab.catSite')} </h2>
+          <h2 className="text-lg font-semibold"> {t('monitor.alertRulesTab.catSite')} </h2>
           <p className="text-xs text-[var(--dg-text-muted)]">HTTP Web 拨测 · SSL 证书检测 · TCP / DNS / PING</p>
         </div>
         <div className="flex gap-2">
@@ -227,11 +229,11 @@ export function SiteMonitor() {
         <div className="xl:col-span-8 space-y-4">
           <div className="grid grid-cols-2 md:grid-cols-5 gap-2">
             {[
-              { label: i18n.t('总任务'), value: stats?.total_tasks ?? '--' },
+              { label: t('monitor.lbl.totalTasks'), value: stats?.total_tasks ?? '--' },
-              { label: i18n.t('agent.heartbeatNormal'), value: stats?.up_count ?? '--', color: 'dg-text-green' },
+              { label: t('agent.heartbeatNormal'), value: stats?.up_count ?? '--', color: 'dg-text-green' },
-              { label: i18n.t('agent.heartbeatAbnormal'), value: stats?.down_count ?? '--', color: 'dg-text-red' },
+              { label: t('agent.heartbeatAbnormal'), value: stats?.down_count ?? '--', color: 'dg-text-red' },
-              { label: i18n.t('可用率(24h)'), value: availStr, color: 'dg-text-blue' },
+              { label: t('monitor.lbl.availability24h'), value: availStr, color: 'dg-text-blue' },
-              { label: i18n.t('探测次数'), value: probeCountStr },
+              { label: t('monitor.lbl.totalProbes'), value: probeCountStr },
             ].map((item) => (
               <div key={item.label} className="rounded-lg border border-[var(--dg-border)] bg-[var(--dg-bg-secondary)] px-3 py-2 text-center">
                 <p className="text-[10px] text-[var(--dg-text-muted)]">{item.label}</p>
@@ -245,8 +247,8 @@ export function SiteMonitor() {
               <div className="flex items-center justify-between mb-3 flex-wrap gap-2">
                 <div className="flex items-center gap-2">
                   <Activity className="h-4 w-4 text-[var(--dg-text-muted)]" />
-                  <h3 className="text-sm font-medium"> {i18n.t('monitor.sitemonitortsx.s30319e1c')} </h3>
+                  <h3 className="text-sm font-medium"> {t('monitor.sitemonitortsx.s30319e1c')} </h3>
-                  <span className="text-[10px] text-[var(--dg-text-muted)]"> {i18n.t('monitor.sitemonitortsx.sa5e6b654')} </span>
+                  <span className="text-[10px] text-[var(--dg-text-muted)]"> {t('monitor.sitemonitortsx.sa5e6b654')} </span>
                 </div>
                 <div className="flex flex-wrap gap-1">
                   {FILTER_TYPES.map((type) => {
@@ -263,7 +265,7 @@ export function SiteMonitor() {
                             : 'bg-[var(--dg-bg-tertiary)] text-[var(--dg-text-muted)] border border-transparent hover:text-[var(--dg-text-primary)]'
                         }`}
                       >
-                        {type === 'ALL' ? i18n.t('system.auditAll') : type} {count > 0 && count}
+                        {type === 'ALL' ? t('system.auditAll') : type} {count > 0 && count}
                       </button>
                     );
                   })}
@@ -272,19 +274,19 @@ export function SiteMonitor() {
 
               {filteredTasks.length === 0 ? (
                 <div className="text-center py-10 text-sm text-[var(--dg-text-muted)]">
-                  {tasks.length === 0 ? i18n.t('暂无拨测任务') : i18n.t('当前筛选无任务')}
+                  {tasks.length === 0 ? t('monitor.lbl.noTasks') : t('monitor.lbl.noFilteredTasks')}
                 </div>
               ) : (
                 <div className="overflow-x-auto">
                   <Table>
                     <TableHeader>
                       <TableRow className="border-[var(--dg-border)] hover:bg-transparent">
-                        <TableHead className="text-xs"> {i18n.t('kubernetes.secret.secretName')} </TableHead>
+                        <TableHead className="text-xs"> {t('kubernetes.secret.secretName')} </TableHead>
-                        <TableHead className="text-xs"> {i18n.t('system.credentialType')} </TableHead>
+                        <TableHead className="text-xs"> {t('system.credentialType')} </TableHead>
-                        <TableHead className="text-xs"> {i18n.t('monitor.siteTask.frequency')} </TableHead>
+                        <TableHead className="text-xs"> {t('monitor.siteTask.frequency')} </TableHead>
-                        <TableHead className="text-xs"> {i18n.t('全部')} </TableHead>
+                        <TableHead className="text-xs"> {t('common.all')} </TableHead>
-                        <TableHead className="text-xs"> {i18n.t('全部')} </TableHead>
+                        <TableHead className="text-xs"> {t('common.all')} </TableHead>
-                        <TableHead className="text-xs"> {i18n.t('system.userActive')} </TableHead>
+                        <TableHead className="text-xs"> {t('system.userActive')} </TableHead>
                         <TableHead className="text-xs w-24" />
                       </TableRow>
                     </TableHeader>
@@ -343,16 +345,16 @@ export function SiteMonitor() {
       <Dialog open={formOpen} onOpenChange={(open) => { setFormOpen(open); if (!open) setEditingTaskId(null); }}>
         <DialogContent className="sm:max-w-md bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
           <DialogHeader>
-            <DialogTitle>{editingTaskId ? i18n.t('monitor.editProbe') : i18n.t('monitor.addProbe')}</DialogTitle>
+            <DialogTitle>{editingTaskId ? t('monitor.editProbe') : t('monitor.addProbe')}</DialogTitle>
-            <DialogDescription className="text-[var(--dg-text-muted)]"> {i18n.t('monitor.sitemonitortsx.s6173cf9a')} </DialogDescription>
+            <DialogDescription className="text-[var(--dg-text-muted)]"> {t('monitor.sitemonitortsx.s6173cf9a')} </DialogDescription>
           </DialogHeader>
           <div className="grid gap-4 py-2">
             <div className="grid gap-1.5">
-              <Label> {i18n.t('automation.cronJobName')} </Label>
+              <Label> {t('automation.cronJobName')} </Label>
-              <Input placeholder={i18n.t('例如：官网首页')} value={form.name} onChange={(e) => setForm({ ...form, name: e.target.value })} />
+              <Input placeholder={t('monitor.lbl.urlPlaceholder')} value={form.name} onChange={(e) => setForm({ ...form, name: e.target.value })} />
             </div>
             <div className="grid gap-1.5">
-              <Label> {i18n.t('保存')} </Label>
+              <Label> {t('common.save')} </Label>
               <Select value={form.type} onValueChange={(v) => {
                 const t = v as ProbeType;
                 setForm({ ...form, type: t, frequency_sec: editingTaskId ? form.frequency_sec : defaultProbeFrequency(t) });
@@ -370,30 +372,30 @@ export function SiteMonitor() {
             </div>
             <div className="grid grid-cols-2 gap-3">
               <div className="grid gap-1.5">
-                <Label> {i18n.t('保存')} </Label>
+                <Label> {t('common.save')} </Label>
                 <Input type="number" min={MIN_PROBE_FREQUENCY[form.type]} max={86400} value={form.frequency_sec}
                   onChange={(e) => setForm({ ...form, frequency_sec: Number(e.target.value) || defaultProbeFrequency(form.type) })} />
                 <p className="text-[10px] text-[var(--dg-text-muted)]">{probeFrequencyHint(form.type)}</p>
               </div>
               <div className="grid gap-1.5">
-                <Label> {i18n.t('保存')} </Label>
+                <Label> {t('common.save')} </Label>
                 <Input type="number" min={1} max={300} value={form.timeout_sec}
                   onChange={(e) => setForm({ ...form, timeout_sec: Number(e.target.value) || 10 })} />
               </div>
             </div>
             {form.type === 'HTTP' && (
               <div className="grid gap-1.5">
-                <Label> {i18n.t('保存')} </Label>
+                <Label> {t('common.save')} </Label>
                 <Input type="number" min={100} max={599} value={form.expected_status_code}
                   onChange={(e) => setForm({ ...form, expected_status_code: Number(e.target.value) || 200 })} />
               </div>
             )}
           </div>
           <DialogFooter>
-            <Button variant="outline" onClick={() => { setFormOpen(false); setEditingTaskId(null); }} disabled={saving}> {i18n.t('rbac.jobRole.cancel')} </Button>
+            <Button variant="outline" onClick={() => { setFormOpen(false); setEditingTaskId(null); }} disabled={saving}> {t('rbac.jobRole.cancel')} </Button>
             <Button onClick={handleSave} disabled={saving}>
               {saving && <Loader2 className="h-4 w-4 animate-spin mr-1" />}
-              {editingTaskId ? i18n.t('task.script.save') : i18n.t('保存')}
+              {editingTaskId ? t('task.script.save') : t('common.save')}
             </Button>
           </DialogFooter>
         </DialogContent>

frontend/src/pages/monitor/host-monitor/HealthProbeSection.tsx

@@ -18,13 +18,14 @@ import {
 import { DEFAULT_PROBE_FORM, type ProbeForm } from './types';
 import { useConfirm } from '@/components/ui/confirm-dialog';
 import { toast } from 'sonner';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 interface HealthProbeSectionProps {
   selectedHost: string;
 }
 
 export function HealthProbeSection({ selectedHost }: HealthProbeSectionProps) {
+  const { t } = useTranslation();
   const confirm = useConfirm();
   const qc = useQueryClient();
   const { data: probes = [], isFetching, refetch } = useHealthProbes(selectedHost);
@@ -69,15 +70,15 @@ export function HealthProbeSection({ selectedHost }: HealthProbeSectionProps) {
       setProbeDialogOpen(false);
       qc.invalidateQueries({ queryKey: queryKeys.hostMonitor.probes(selectedHost) });
     } catch {
-      toast.error(i18n.t('kubernetes.msg.saveFailed'));
+      toast.error(t('kubernetes.msg.saveFailed'));
     }
   };
 
   const handleDeleteProbe = async (p: Record<string, unknown>) => {
     const ok = await confirm({
-      title: i18n.t('删除探针'),
+      title: t('monitor.lbl.deleteProbe'),
       description: `确定删除探针「${p.name}」？`,
-      confirmText: i18n.t('kubernetes.storage.delete2'),
+      confirmText: t('kubernetes.storage.delete2'),
       variant: 'destructive',
     });
     if (!ok) return;
@@ -89,7 +90,7 @@ export function HealthProbeSection({ selectedHost }: HealthProbeSectionProps) {
     <>
       <TabsContent value="health_probes" className="mt-3 space-y-3">
         <div className="flex items-center justify-between">
-          <h3 className="text-xs font-medium text-[var(--dg-text-primary)]"> {i18n.t('无限制')} </h3>
+          <h3 className="text-xs font-medium text-[var(--dg-text-primary)]"> {t('monitor.lbl.unlimited')} </h3>
           <div className="flex gap-2">
             <Button size="sm" variant="outline" className="h-7 text-[11px]" onClick={() => refetch()} disabled={isFetching}>
               <RefreshCw className={cn('w-3 h-3 mr-1', isFetching && 'animate-spin')} />刷新
@@ -102,7 +103,7 @@ export function HealthProbeSection({ selectedHost }: HealthProbeSectionProps) {
         {probes.length === 0 ? (
           <Card className="bg-[var(--dg-bg-secondary)] border-dashed border-[var(--dg-border)]">
             <CardContent className="p-8 text-center text-xs text-[var(--dg-text-muted)]">
-              暂无健康探针，点击i18n.t('添加探针')创建
+              暂无健康探针，点击t('monitor.lbl.addProbe')创建
             </CardContent>
           </Card>
         ) : (
@@ -140,8 +141,8 @@ export function HealthProbeSection({ selectedHost }: HealthProbeSectionProps) {
                       <div className="truncate font-mono">{String(p.exec_command)}</div>
                     )}
                     <div className="flex items-center gap-3">
-                      <span> {i18n.t('无限制')} <span className={p.last_status === 'up' ? 'dg-text-green' : p.last_status === 'down' ? 'dg-text-red' : 'dg-text-secondary'}>
+                      <span> {t('monitor.lbl.unlimited')} <span className={p.last_status === 'up' ? 'dg-text-green' : p.last_status === 'down' ? 'dg-text-red' : 'dg-text-secondary'}>
-                        {p.last_status ? String(p.last_status).toUpperCase() : i18n.t('未检测')}
+                        {p.last_status ? String(p.last_status).toUpperCase() : t('monitor.lbl.notDetected')}
                       </span></span>
                       {Number(p.last_latency_ms) > 0 && <span>延迟: {String(p.last_latency_ms)}ms</span>}
                       {Number(p.fail_count) > 0 && <span className="dg-text-red">连续失败: {String(p.fail_count)}次</span>}
@@ -159,23 +160,23 @@ export function HealthProbeSection({ selectedHost }: HealthProbeSectionProps) {
         <DialogContent showOverlay={false} className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)] max-w-lg">
           <DialogHeader>
             <DialogTitle className="text-[var(--dg-text-primary)]">
-              {editingProbe ? i18n.t('编辑探针') : i18n.t('添加探针')}
+              {editingProbe ? t('monitor.lbl.editProbe') : t('monitor.lbl.addProbe')}
             </DialogTitle>
             <DialogDescription className="text-[var(--dg-text-secondary)]">
-              {editingProbe ? i18n.t('编辑探针') : i18n.t('添加探针')}
+              {editingProbe ? t('monitor.lbl.editProbe') : t('monitor.lbl.addProbe')}
             </DialogDescription>
           </DialogHeader>
           <div className="space-y-3 max-h-[60vh] overflow-y-auto pr-1">
             <div>
-              <label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {i18n.t('>探针名称 <span className=')} <span className="dg-text-red">*</span></label>
+              <label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {t('>探针名称 <span className=')} <span className="dg-text-red">*</span></label>
-              <input className="w-full h-8 bg-[var(--dg-bg-secondary)] border border-[var(--dg-border)] rounded px-2 text-xs text-[var(--dg-text-primary)]" value={probeForm.name} onChange={e => setProbeForm({ ...probeForm, name: e.target.value })} placeholder={i18n.t('如：cex-agent 健康检查')} />
+              <input className="w-full h-8 bg-[var(--dg-bg-secondary)] border border-[var(--dg-border)] rounded px-2 text-xs text-[var(--dg-text-primary)]" value={probeForm.name} onChange={e => setProbeForm({ ...probeForm, name: e.target.value })} placeholder={t('如：cex-agent 健康检查')} />
             </div>
             <div>
-              <label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {i18n.t('agent.installTarget')} </label>
+              <label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {t('agent.installTarget')} </label>
               <input className="w-full h-8 bg-[var(--dg-bg-secondary)] border border-[var(--dg-border)] rounded px-2 text-xs text-[var(--dg-text-primary)]" value={probeForm.hostname} onChange={e => setProbeForm({ ...probeForm, hostname: e.target.value })} />
             </div>
             <div>
-              <label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {i18n.t('kubernetes.container.probeType')} </label>
+              <label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {t('kubernetes.container.probeType')} </label>
               <select className="w-full h-8 bg-[var(--dg-bg-secondary)] border border-[var(--dg-border)] rounded px-2 text-xs text-[var(--dg-text-primary)]" value={probeForm.probe_type} onChange={e => setProbeForm({ ...probeForm, probe_type: e.target.value })}>
                 <option value="http_get">HTTP GET</option>
                 <option value="tcp_socket">TCP Socket</option>
@@ -188,9 +189,9 @@ export function HealthProbeSection({ selectedHost }: HealthProbeSectionProps) {
                 <div><label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block">HTTP URL <span className="dg-text-red">*</span></label>
                   <input className="w-full h-8 bg-[var(--dg-bg-secondary)] border border-[var(--dg-border)] rounded px-2 text-xs text-[var(--dg-text-primary)]" value={probeForm.http_url} onChange={e => setProbeForm({ ...probeForm, http_url: e.target.value })} placeholder="http://localhost:8080/health" /></div>
                 <div className="grid grid-cols-2 gap-2">
-                  <div><label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {i18n.t('无限制')} </label>
+                  <div><label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {t('monitor.lbl.unlimited')} </label>
                     <input type="number" className="w-full h-8 bg-[var(--dg-bg-secondary)] border border-[var(--dg-border)] rounded px-2 text-xs text-[var(--dg-text-primary)]" value={probeForm.http_expect_code} onChange={e => setProbeForm({ ...probeForm, http_expect_code: Number(e.target.value) })} /></div>
-                  <div><label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {i18n.t('无限制')} </label>
+                  <div><label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {t('monitor.lbl.unlimited')} </label>
                     <input className="w-full h-8 bg-[var(--dg-bg-secondary)] border border-[var(--dg-border)] rounded px-2 text-xs text-[var(--dg-text-primary)]" value={probeForm.http_expect_body} onChange={e => setProbeForm({ ...probeForm, http_expect_body: e.target.value })} /></div>
                 </div>
               </>
@@ -206,24 +207,24 @@ export function HealthProbeSection({ selectedHost }: HealthProbeSectionProps) {
             )}
 
             {probeForm.probe_type === 'exec_command' && (
-              <div><label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {i18n.t('aiops.assistantCommand')} <span className="dg-text-red">*</span></label>
+              <div><label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {t('aiops.assistantCommand')} <span className="dg-text-red">*</span></label>
                 <input className="w-full h-8 bg-[var(--dg-bg-secondary)] border border-[var(--dg-border)] rounded px-2 text-xs font-mono text-[var(--dg-text-primary)]" value={probeForm.exec_command} onChange={e => setProbeForm({ ...probeForm, exec_command: e.target.value })} placeholder="pgrep -x mysqld" /></div>
             )}
 
             <div className="grid grid-cols-2 gap-2">
-              <div><label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {i18n.t('automation.remoteTimeout')} </label>
+              <div><label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {t('automation.remoteTimeout')} </label>
                 <input type="number" className="w-full h-8 bg-[var(--dg-bg-secondary)] border border-[var(--dg-border)] rounded px-2 text-xs text-[var(--dg-text-primary)]" value={probeForm.timeout} onChange={e => setProbeForm({ ...probeForm, timeout: Number(e.target.value) })} /></div>
-              <div><label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {i18n.t('>执行命令 <span className=')} </label>
+              <div><label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {t('>执行命令 <span className=')} </label>
                 <input type="number" className="w-full h-8 bg-[var(--dg-bg-secondary)] border border-[var(--dg-border)] rounded px-2 text-xs text-[var(--dg-text-primary)]" value={probeForm.interval} onChange={e => setProbeForm({ ...probeForm, interval: Number(e.target.value) })} /></div>
             </div>
 
-            <div><label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {i18n.t('aiops.llmModelDesc')} </label>
+            <div><label className="text-[11px] text-[var(--dg-text-muted)] mb-1 block"> {t('aiops.llmModelDesc')} </label>
               <input className="w-full h-8 bg-[var(--dg-bg-secondary)] border border-[var(--dg-border)] rounded px-2 text-xs text-[var(--dg-text-primary)]" value={probeForm.description} onChange={e => setProbeForm({ ...probeForm, description: e.target.value })} /></div>
           </div>
           <DialogFooter>
-            <Button variant="outline" size="sm" className="h-7 text-[11px]" onClick={() => setProbeDialogOpen(false)}> {i18n.t('rbac.jobRole.cancel')} </Button>
+            <Button variant="outline" size="sm" className="h-7 text-[11px]" onClick={() => setProbeDialogOpen(false)}> {t('rbac.jobRole.cancel')} </Button>
             <Button size="sm" className="h-7 text-[11px] bg-blue-600 hover:bg-blue-500" onClick={handleSaveProbe} disabled={!probeForm.name || !probeForm.hostname}>
-              {editingProbe ? i18n.t('task.script.save') : i18n.t('rbac.jobRole.create')}
+              {editingProbe ? t('task.script.save') : t('rbac.jobRole.create')}
             </Button>
           </DialogFooter>
         </DialogContent>

frontend/src/pages/monitor/host-monitor/HostTimeRangePicker.tsx

@@ -9,7 +9,7 @@ import {
   type TimeRangePresetId,
 } from './types';
 import { presetToRange, toDatetimeLocalValue, formatRangeSummary } from './timeRange';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 interface Props {
   value: HostMonitorTimeRange;
@@ -17,6 +17,7 @@ interface Props {
 }
 
 export function HostTimeRangePicker({ value, onChange }: Props) {
+  const { t } = useTranslation();
   const [customOpen, setCustomOpen] = useState(false);
   const now = new Date();
   const [customStart, setCustomStart] = useState(toDatetimeLocalValue(new Date(now.getTime() - 3600_000)));
@@ -45,7 +46,7 @@ export function HostTimeRangePicker({ value, onChange }: Props) {
     const e = start.getTime() <= end.getTime() ? end : start;
     onChange({
       preset: 'custom',
-      label: i18n.t('aiops.providerCustom'),
+      label: t('aiops.providerCustom'),
       start: s.toISOString(),
       end: e.toISOString(),
       buckets: Math.min(120, Math.max(36, Math.ceil((e.getTime() - s.getTime()) / 60_000 / 2))),
@@ -86,10 +87,10 @@ export function HostTimeRangePicker({ value, onChange }: Props) {
           </Button>
           {customOpen && (
             <div className="absolute right-0 top-full mt-1 z-50 w-72 rounded-lg border border-[var(--dg-border)] bg-[var(--dg-bg-primary)] p-3 shadow-lg">
-              <p className="text-xs font-medium text-[var(--dg-text-primary)] mb-2"> {i18n.t('无限制')} </p>
+              <p className="text-xs font-medium text-[var(--dg-text-primary)] mb-2"> {t('monitor.lbl.unlimited')} </p>
               <div className="space-y-2">
                 <div>
-                  <label className="text-[10px] dg-text-muted"> {i18n.t('common.start')} </label>
+                  <label className="text-[10px] dg-text-muted"> {t('common.start')} </label>
                   <Input
                     type="datetime-local"
                     value={customStart}
@@ -98,7 +99,7 @@ export function HostTimeRangePicker({ value, onChange }: Props) {
                   />
                 </div>
                 <div>
-                  <label className="text-[10px] dg-text-muted"> {i18n.t('无限制')} </label>
+                  <label className="text-[10px] dg-text-muted"> {t('monitor.lbl.unlimited')} </label>
                   <Input
                     type="datetime-local"
                     value={customEnd}

frontend/src/pages/monitor/host-monitor/PortPolicyDialog.tsx

@@ -1,7 +1,7 @@
 // 端口策略对话框 // Logan.Li
 import { Button } from '@/components/ui/button';
 import { parsePortList } from '@/utils/validate';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 import {
   Dialog, DialogContent, DialogDescription, DialogFooter, DialogHeader, DialogTitle,
 } from '@/components/ui/dialog';
@@ -27,16 +27,17 @@ export function PortPolicyDialog({
   onSave,
   saving,
 }: PortPolicyDialogProps) {
+  const { t } = useTranslation();
   return (
     <Dialog open={open} onOpenChange={onOpenChange}>
       <DialogContent showOverlay={false} className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)] max-w-md">
         <DialogHeader>
-          <DialogTitle className="text-[var(--dg-text-primary)]"> {i18n.t('monitor.portpolicydialo.s868e3dd0')} </DialogTitle>
+          <DialogTitle className="text-[var(--dg-text-primary)]"> {t('monitor.portpolicydialo.s868e3dd0')} </DialogTitle>
-          <DialogDescription className="text-[var(--dg-text-secondary)]"> {i18n.t('monitor.portpolicydialo.scd27ad47')} </DialogDescription>
+          <DialogDescription className="text-[var(--dg-text-secondary)]"> {t('monitor.portpolicydialo.scd27ad47')} </DialogDescription>
         </DialogHeader>
         <div className="space-y-4">
           <div>
-            <label className="text-[11px] text-[var(--dg-text-muted)] mb-1.5 block"> {i18n.t('monitor.portpolicydialo.s7824bdd1')} </label>
+            <label className="text-[11px] text-[var(--dg-text-muted)] mb-1.5 block"> {t('monitor.portpolicydialo.s7824bdd1')} </label>
             <div className="flex gap-2">
               <button
                 className={`flex-1 h-9 rounded text-xs font-medium border transition-colors ${portPolicyMode === 'whitelist' ? 'bg-blue-500/20 border-blue-500 dg-text-blue' : 'bg-[var(--dg-bg-secondary)] border-[var(--dg-border)] text-[var(--dg-text-muted)]'}`}
@@ -53,8 +54,8 @@ export function PortPolicyDialog({
             </div>
             <p className="text-[10px] text-[var(--dg-text-muted)] mt-1.5 leading-relaxed">
               {portPolicyMode === 'whitelist'
-                ? i18n.t('所有发现的端口都上报，任意端口变化都会触发告警 + 恢复通知。')
+                ? t('monitor.lbl.allPortsReport')
-                : i18n.t('仅上报选中端口的变化，其余端口变化静默忽略（不告警）。系统进程端口（sshd/rpcbind/systemd等）永远忽略。')}
+                : t('monitor.lbl.selectedOnlyReport')}
             </p>
           </div>
 
@@ -73,7 +74,7 @@ export function PortPolicyDialog({
                 const val = e.target.value;
                 onWhitelistChange(parsePortList(val));
               }}
-              placeholder={portPolicyMode === 'whitelist' ? i18n.t('白名单模式下所有端口自动上报') : '80,443,3306,6379'}
+              placeholder={portPolicyMode === 'whitelist' ? t('monitor.lbl.whitelistAutoReport') : '80,443,3306,6379'}
               readOnly={portPolicyMode === 'whitelist'}
             />
             <p className="text-[10px] text-[var(--dg-text-muted)] mt-1">
@@ -83,14 +84,14 @@ export function PortPolicyDialog({
 
           <div className="bg-amber-500/5 border border-amber-500/20 rounded p-2.5">
             <p className="text-[10px] text-amber-300/80 leading-relaxed">
-              ⚠️ 无论选择哪种模式，以下系统进程端口<b> {i18n.t('monitor.portpolicydialo.s2ff12d51')} </b>：sshd、rpcbind、master、systemd、dbus-daemon、rsyslogd 等。Agent 采集时自动跳过。
+              ⚠️ 无论选择哪种模式，以下系统进程端口<b> {t('monitor.portpolicydialo.s2ff12d51')} </b>：sshd、rpcbind、master、systemd、dbus-daemon、rsyslogd 等。Agent 采集时自动跳过。
             </p>
           </div>
         </div>
         <DialogFooter>
-          <Button variant="outline" size="sm" className="h-7 text-[11px]" onClick={() => onOpenChange(false)}> {i18n.t('rbac.jobRole.cancel')} </Button>
+          <Button variant="outline" size="sm" className="h-7 text-[11px]" onClick={() => onOpenChange(false)}> {t('rbac.jobRole.cancel')} </Button>
           <Button size="sm" className="h-7 text-[11px] bg-blue-600 hover:bg-blue-500" onClick={onSave} disabled={saving}>
-            {saving ? i18n.t('monitor.silenceDialog.saving') : i18n.t('保存中…')}
+            {saving ? t('monitor.silenceDialog.saving') : t('monitor.lbl.saving')}
           </Button>
         </DialogFooter>
       </DialogContent>

frontend/src/pages/monitor/host-monitor/ZoomableAreaChart.tsx

@@ -13,7 +13,7 @@ import {
 import { ChartToolbar } from './ChartToolbar';
 import { MonitorChartTooltip } from '../shared/monitorChartTheme';
 import { ChartRangeHint } from '../shared/ChartRangeHint';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 export interface ChartSeries {
   dataKey: string;
@@ -192,6 +192,7 @@ export const ZoomableAreaChart = forwardRef<ZoomableChartHandle, Props>(function
   onZoomedChange,
   referenceLines,
 }, ref) {
+  const { t } = useTranslation();
   const uid = useId().replace(/:/g, '');
   const gradPrefix = `grad-${chartId}-${uid}`;
 
@@ -316,11 +317,11 @@ export const ZoomableAreaChart = forwardRef<ZoomableChartHandle, Props>(function
         <DialogContent className={dialogClass}>
           <DialogHeader className="shrink-0 flex-row items-start justify-between gap-4 space-y-0 pr-10">
             <div className="min-w-0">
-              <DialogTitle className="text-base truncate">{title || i18n.t('指标详情')}</DialogTitle>
+              <DialogTitle className="text-base truncate">{title || t('monitor.lbl.metricDetail')}</DialogTitle>
               {subtitle && (
                 <p className="text-xs dg-text-muted mt-0.5 truncate">{subtitle}</p>
               )}
-              <DialogDescription className="sr-only"> {i18n.t('选择主机...')} </DialogDescription>
+              <DialogDescription className="sr-only"> {t('monitor.lbl.selectHost')} </DialogDescription>
             </div>
             <ChartToolbar
               size="md"

frontend/src/pages/monitor/host-monitor/tabs/BasicTab.tsx

@@ -2,7 +2,7 @@
 import { Cpu, Clock, Server, HardDrive, Activity } from 'lucide-react';
 import type { AggType, BucketPoint, HostRecord, RefLine } from '../types';
 import { MetricChartCard } from '../MetricChartCard';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 export interface BasicTabProps {
   metrics: {
@@ -16,19 +16,20 @@ export interface BasicTabProps {
 }
 
 export function BasicTab({ metrics, latest, currentVal, aggType, pctRefLines }: BasicTabProps) {
+  const { t } = useTranslation();
   return (
     <div className="grid grid-cols-1 md:grid-cols-3 gap-3">
-      <MetricChartCard title={i18n.t('CPU 使用率(%)')} value={currentVal('cpu')} icon={<Cpu />} iconTone="blue"
+      <MetricChartCard title={t('monitor.lbl.cpuUsage')} value={currentVal('cpu')} icon={<Cpu />} iconTone="blue"
         data={metrics.cpu} color="#3b82f6" unit="%" domain={[0, 100]} aggType={aggType} referenceLines={pctRefLines} />
-      <MetricChartCard title={i18n.t('CPU IO等待(%)')} value={latest?.cpu_iowait != null ? `${(latest.cpu_iowait as number).toFixed(1)}%` : '--'} icon={<Clock />} iconTone="orange"
+      <MetricChartCard title={t('monitor.lbl.cpuIowait')} value={latest?.cpu_iowait != null ? `${(latest.cpu_iowait as number).toFixed(1)}%` : '--'} icon={<Clock />} iconTone="orange"
         data={metrics.iowait} color="#f97316" unit="%" domain={[0, 100]} aggType={aggType} referenceLines={pctRefLines} />
-      <MetricChartCard title={i18n.t('内存使用率(%)')} value={currentVal('mem')} icon={<Server />} iconTone="green"
+      <MetricChartCard title={t('monitor.lbl.memUsage')} value={currentVal('mem')} icon={<Server />} iconTone="green"
         data={metrics.mem} color="#10b981" unit="%" domain={[0, 100]} aggType={aggType} referenceLines={pctRefLines} />
-      <MetricChartCard title={i18n.t('可用内存(GB)')} value={latest?.mem_available != null ? `${(latest.mem_available as number).toFixed(1)}GB` : '--'} icon={<Server />} iconTone="green"
+      <MetricChartCard title={t('monitor.lbl.memAvailable')} value={latest?.mem_available != null ? `${(latest.mem_available as number).toFixed(1)}GB` : '--'} icon={<Server />} iconTone="green"
         data={metrics.memAvail} color="#34d399" unit="GB" domain={[0, 'auto']} aggType={aggType} />
-      <MetricChartCard title={i18n.t('Swap 使用率(%)')} value={currentVal('swap')} icon={<HardDrive />} iconTone="red"
+      <MetricChartCard title={t('monitor.lbl.swapUsage')} value={currentVal('swap')} icon={<HardDrive />} iconTone="red"
         data={metrics.swap} color="#ef4444" unit="%" domain={[0, 100]} aggType={aggType} />
-      <MetricChartCard title={i18n.t('系统负载(1m)')} value={currentVal('load1')} icon={<Activity />} iconTone="purple"
+      <MetricChartCard title={t('monitor.lbl.load1')} value={currentVal('load1')} icon={<Activity />} iconTone="purple"
         data={metrics.load1} color="#8b5cf6" unit="" domain={[0, 'auto']} aggType={aggType} />
     </div>
   );

frontend/src/pages/monitor/host-monitor/tabs/ContextSwitchCard.tsx

@@ -2,9 +2,10 @@
 import type { JsonData } from '@/types/common';
 import { Card, CardContent } from '@/components/ui/card';
 import { RefreshCw } from 'lucide-react';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 export function ContextSwitchCard({ csInfo }: { csInfo: JsonData }) {
+  const { t } = useTranslation();
   return (
     <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
       <CardContent className="p-4">
@@ -47,7 +48,7 @@ export function ContextSwitchCard({ csInfo }: { csInfo: JsonData }) {
             </div>
           </div>
         ) : (
-          <div className="text-center py-4 text-xs text-[var(--dg-text-muted)]"> {i18n.t('无限制')} </div>
+          <div className="text-center py-4 text-xs text-[var(--dg-text-muted)]"> {t('monitor.lbl.unlimited')} </div>
         )}
       </CardContent>
     </Card>

frontend/src/pages/monitor/host-monitor/tabs/DiskTab.tsx

@@ -4,7 +4,7 @@ import type { AggType, BucketPoint, RefLine } from '../types';
 import type { JsonData } from '@/types/common';
 import { MetricChartCard } from '../MetricChartCard';
 import { parseJSON } from '../utils';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 export interface DiskTabProps {
   metrics: {
@@ -19,6 +19,7 @@ export interface DiskTabProps {
 }
 
 export function DiskTab({ metrics, latest, currentVal, aggType, pctRefLines, diskIOInfo }: DiskTabProps) {
+  const { t } = useTranslation();
   const inodeVal = (() => {
     const dArr = Array.isArray(parseJSON(latest?.disk_info)) ? parseJSON(latest?.disk_info) : [];
     const root = dArr.find((d: JsonData) => d.mount === '/') || dArr[0];
@@ -27,15 +28,15 @@ export function DiskTab({ metrics, latest, currentVal, aggType, pctRefLines, dis
 
   return (
     <div className="grid grid-cols-1 md:grid-cols-3 gap-3">
-      <MetricChartCard title={i18n.t('磁盘使用率(%)')} value={currentVal('disk')} icon={<HardDrive />} iconTone="orange"
+      <MetricChartCard title={t('monitor.lbl.diskUsage')} value={currentVal('disk')} icon={<HardDrive />} iconTone="orange"
         data={metrics.disk} color="#f97316" unit="%" domain={[0, 100]} aggType={aggType} referenceLines={pctRefLines} />
-      <MetricChartCard title={i18n.t('Swap 使用率(%)')} value={inodeVal} icon={<HardDrive />} iconTone="purple"
+      <MetricChartCard title={t('monitor.lbl.swapUsage')} value={inodeVal} icon={<HardDrive />} iconTone="purple"
         data={metrics.inode} color="#8b5cf6" unit="%" domain={[0, 100]} aggType={aggType} referenceLines={pctRefLines} />
-      <MetricChartCard title={i18n.t('磁盘读取(KB/s)')} value={currentVal('ioR')} icon={<Disc />} iconTone="blue"
+      <MetricChartCard title={t('monitor.lbl.diskRead')} value={currentVal('ioR')} icon={<Disc />} iconTone="blue"
         data={metrics.ioRead} color="#3b82f6" unit="KB/s" domain={[0, 'auto']} aggType={aggType} />
-      <MetricChartCard title={i18n.t('磁盘写入(KB/s)')} value={currentVal('ioW')} icon={<Disc />} iconTone="green"
+      <MetricChartCard title={t('monitor.lbl.diskWrite')} value={currentVal('ioW')} icon={<Disc />} iconTone="green"
         data={metrics.ioWrite} color="#10b981" unit="KB/s" domain={[0, 'auto']} aggType={aggType} />
-      <MetricChartCard title={i18n.t('磁盘IO繁忙度(%)')} value={diskIOInfo?.util != null ? `${diskIOInfo.util.toFixed(1)}%` : '--'} icon={<Disc />} iconTone="red"
+      <MetricChartCard title={t('monitor.lbl.diskIoBusy')} value={diskIOInfo?.util != null ? `${diskIOInfo.util.toFixed(1)}%` : '--'} icon={<Disc />} iconTone="red"
         data={metrics.ioUtil} color="#ef4444" unit="%" domain={[0, 100]} aggType={aggType} referenceLines={pctRefLines} />
     </div>
   );

frontend/src/pages/monitor/host-monitor/tabs/FDUsageCard.tsx

@@ -7,7 +7,7 @@ import { Card, CardContent } from '@/components/ui/card';
 import { MetricIconBox } from '../MetricIconBox';
 import { ChartToolbar } from '../ChartToolbar';
 import { ZoomableAreaChart, type ZoomableChartHandle } from '../ZoomableAreaChart';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 export interface FDUsageCardProps {
   fdInfo: JsonData;
@@ -19,6 +19,7 @@ export interface FDUsageCardProps {
 }
 
 export function FDUsageCard({ fdInfo, fdMetrics, aggType, fdChartRef, fdChartZoomed, setFdChartZoomed }: FDUsageCardProps) {
+  const { t } = useTranslation();
   return (
     <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
       <CardContent className="p-4">
@@ -39,15 +40,15 @@ export function FDUsageCard({ fdInfo, fdMetrics, aggType, fdChartRef, fdChartZoo
           <>
             <div className="flex items-center gap-4 mb-3 text-xs">
               <div>
-                <span className="text-[var(--dg-text-muted)]"> {i18n.t('deploy.toast.assigned')} </span>
+                <span className="text-[var(--dg-text-muted)]"> {t('deploy.toast.assigned')} </span>
                 <span className="font-mono text-[var(--dg-text-primary)] font-semibold">{fdInfo.allocated.toLocaleString()}</span>
               </div>
               <div>
-                <span className="text-[var(--dg-text-muted)]"> {i18n.t('monitor.metricCatalog.colMax')} </span>
+                <span className="text-[var(--dg-text-muted)]"> {t('monitor.metricCatalog.colMax')} </span>
-                <span className="font-mono text-[var(--dg-text-primary)] font-semibold">{fdInfo.max === -1 ? i18n.t('无限制') : fdInfo.max?.toLocaleString() || '—'}</span>
+                <span className="font-mono text-[var(--dg-text-primary)] font-semibold">{fdInfo.max === -1 ? t('monitor.lbl.unlimited') : fdInfo.max?.toLocaleString() || '—'}</span>
               </div>
               <div>
-                <span className="text-[var(--dg-text-muted)]"> {i18n.t('server.usage')} </span>
+                <span className="text-[var(--dg-text-muted)]"> {t('server.usage')} </span>
                 <span className={`font-mono font-semibold ${fdInfo.usage_pct > 80 ? 'text-rose-400' : 'dg-text-purple'}`}>
                   {fdInfo.usage_pct != null ? `${fdInfo.usage_pct.toFixed(1)}%` : '—'}
                 </span>
@@ -57,11 +58,11 @@ export function FDUsageCard({ fdInfo, fdMetrics, aggType, fdChartRef, fdChartZoo
               <ZoomableAreaChart
                 ref={fdChartRef}
                 data={fdMetrics.map((d) => ({ ...d, value: d[aggType] }))}
-                series={[{ dataKey: 'value', color: '#a78bfa', label: i18n.t('FD 使用率') }]}
+                series={[{ dataKey: 'value', color: '#a78bfa', label: t('monitor.lbl.fdRate') }]}
                 yDomain={[0, 'auto']}
                 unit="%"
                 chartId="fd-usage"
-                title={i18n.t('网卡带宽吞吐')}
+                title={t('monitor.lbl.nicBandwidth')}
                 subtitle={fdInfo?.usage_pct != null ? `当前 ${fdInfo.usage_pct.toFixed(1)}%` : undefined}
                 height={160}
                 toolbarPlacement="header"
@@ -71,7 +72,7 @@ export function FDUsageCard({ fdInfo, fdMetrics, aggType, fdChartRef, fdChartZoo
             )}
           </>
         ) : (
-          <div className="text-center py-4 text-xs text-[var(--dg-text-muted)]"> {i18n.t('无限制')} </div>
+          <div className="text-center py-4 text-xs text-[var(--dg-text-muted)]"> {t('monitor.lbl.unlimited')} </div>
         )}
       </CardContent>
     </Card>

frontend/src/pages/monitor/host-monitor/tabs/NetworkTab.tsx

@@ -5,7 +5,7 @@ import type { JsonData } from '@/types/common';
 import { MetricChartCard } from '../MetricChartCard';
 import { DualLineChart } from '../DualLineChart';
 import { formatBPS } from '../utils';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 export interface NetworkTabProps {
   metrics: {
@@ -19,31 +19,32 @@ export interface NetworkTabProps {
 }
 
 export function NetworkTab({ metrics, netInfo, currentVal, aggType }: NetworkTabProps) {
+  const { t } = useTranslation();
   const connTotal = netInfo ? String((netInfo.tcp_established || 0) + (netInfo.tcp_time_wait || 0) + (netInfo.tcp_close_wait || 0)) : '--';
 
   return (
     <div className="space-y-3">
       <div className="grid grid-cols-1 md:grid-cols-4 gap-3">
         <MetricChartCard title="TCP EST" value={currentVal('tcp')} icon={<Network />} iconTone="purple"
-          data={metrics.tcpEst} color="#8b5cf6" unit={i18n.t('monitor.hostMonitorPanel.portUnit')} domain={[0, 'auto']} aggType={aggType} />
+          data={metrics.tcpEst} color="#8b5cf6" unit={t('monitor.hostMonitorPanel.portUnit')} domain={[0, 'auto']} aggType={aggType} />
         <MetricChartCard title="TCP TIME_WAIT" value={currentVal('tw')} icon={<Clock />} iconTone="yellow"
           data={metrics.tcpTW} color="#f59e0b" unit="个" domain={[0, 'auto']} aggType={aggType} />
         <MetricChartCard title="TCP CLOSE_WAIT" value={netInfo?.tcp_close_wait != null ? String(netInfo.tcp_close_wait) : '--'} icon={<Clock />} iconTone="red"
           data={metrics.tcpCW} color="#ef4444" unit="个" domain={[0, 'auto']} aggType={aggType} />
-        <MetricChartCard title={i18n.t('内存使用率(%)')} value={connTotal} icon={<Network />} iconTone="cyan"
+        <MetricChartCard title={t('monitor.lbl.memUsage')} value={connTotal} icon={<Network />} iconTone="cyan"
           data={metrics.connTotal} color="#22d3ee" unit="个" domain={[0, 'auto']} aggType={aggType} />
       </div>
       <DualLineChart
-        title={i18n.t('主机监控')}
+        title={t('monitor.lbl.hostMonitor')}
         currentRx={netInfo?.net_rx_bps != null ? formatBPS(netInfo.net_rx_bps) : '--'}
         currentTx={netInfo?.net_tx_bps != null ? formatBPS(netInfo.net_tx_bps) : '--'}
         rxData={metrics.rx} txData={metrics.tx}
         aggType={aggType} unit="KB/s"
       />
       <div className="grid grid-cols-1 md:grid-cols-2 gap-3 mt-3">
-        <MetricChartCard title={i18n.t('网卡接收错误')} value={netInfo?.net_rx_errors != null ? String(netInfo.net_rx_errors) : '--'} icon={<XCircle />} iconTone="red"
+        <MetricChartCard title={t('monitor.lbl.nicRxErrors')} value={netInfo?.net_rx_errors != null ? String(netInfo.net_rx_errors) : '--'} icon={<XCircle />} iconTone="red"
           data={metrics.rxErr} color="#ef4444" unit="个" domain={[0, 'auto']} aggType={aggType} />
-        <MetricChartCard title={i18n.t('网卡发送错误')} value={netInfo?.net_tx_errors != null ? String(netInfo.net_tx_errors) : '--'} icon={<XCircle />} iconTone="orange"
+        <MetricChartCard title={t('monitor.lbl.nicTxErrors')} value={netInfo?.net_tx_errors != null ? String(netInfo.net_tx_errors) : '--'} icon={<XCircle />} iconTone="orange"
           data={metrics.txErr} color="#f97316" unit="个" domain={[0, 'auto']} aggType={aggType} />
       </div>
     </div>

frontend/src/pages/monitor/host-monitor/tabs/PortMonitorTab.tsx

@@ -4,7 +4,7 @@ import { Card, CardContent } from '@/components/ui/card';
 import { Badge } from '@/components/ui/badge';
 import { Button } from '@/components/ui/button';
 import { Server } from 'lucide-react';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 export interface PortMonitorTabProps {
   portInfo: JsonData[];
@@ -14,6 +14,7 @@ export interface PortMonitorTabProps {
 }
 
 export function PortMonitorTab({ portInfo, portPolicyMode, portWhitelist, onOpenPortPolicy }: PortMonitorTabProps) {
+  const { t } = useTranslation();
   return (
     <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
       <CardContent className="p-4">
@@ -44,10 +45,10 @@ export function PortMonitorTab({ portInfo, portPolicyMode, portWhitelist, onOpen
             <table className="w-full text-xs">
               <thead>
                 <tr className="text-[var(--dg-text-muted)] border-b border-[var(--dg-border)]">
-                  <th className="py-1.5 text-left font-medium"> {i18n.t('system.ldapPort')} </th>
+                  <th className="py-1.5 text-left font-medium"> {t('system.ldapPort')} </th>
-                  <th className="py-1.5 text-left font-medium"> {i18n.t('kubernetes.service.protocol')} </th>
+                  <th className="py-1.5 text-left font-medium"> {t('kubernetes.service.protocol')} </th>
-                  <th className="py-1.5 text-left font-medium"> {i18n.t('进程监控')} </th>
+                  <th className="py-1.5 text-left font-medium"> {t('monitor.lbl.processMonitor')} </th>
-                  <th className="py-1.5 text-right font-medium"> {i18n.t('system.terminalStatus')} </th>
+                  <th className="py-1.5 text-right font-medium"> {t('system.terminalStatus')} </th>
                 </tr>
               </thead>
               <tbody>

frontend/src/pages/monitor/host-monitor/tabs/ProcessTable.tsx

@@ -2,9 +2,10 @@
 import type { JsonData } from '@/types/common';
 import { Card, CardContent } from '@/components/ui/card';
 import { List } from 'lucide-react';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 export function ProcessTable({ processTop }: { processTop: JsonData[] }) {
+  const { t } = useTranslation();
   return (
     <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
       <CardContent className="p-4">
@@ -20,11 +21,11 @@ export function ProcessTable({ processTop }: { processTop: JsonData[] }) {
             <table className="w-full text-xs">
               <thead>
                 <tr className="text-[var(--dg-text-muted)] border-b border-[var(--dg-border)]">
-                  <th className="py-1.5 text-left font-medium w-[40%]"> {i18n.t('进程监控')} </th>
+                  <th className="py-1.5 text-left font-medium w-[40%]"> {t('monitor.lbl.processMonitor')} </th>
                   <th className="py-1.5 text-right font-medium w-[8%]">PID</th>
-                  <th className="py-1.5 text-right font-medium w-[16%]"> {i18n.t('进程监控')} </th>
+                  <th className="py-1.5 text-right font-medium w-[16%]"> {t('monitor.lbl.processMonitor')} </th>
                   <th className="py-1.5 text-right font-medium w-[16%]">CPU使用率(%)</th>
-                  <th className="py-1.5 text-right font-medium w-[20%]"> {i18n.t('进程监控')} </th>
+                  <th className="py-1.5 text-right font-medium w-[20%]"> {t('monitor.lbl.processMonitor')} </th>
                 </tr>
               </thead>
               <tbody>
@@ -41,7 +42,7 @@ export function ProcessTable({ processTop }: { processTop: JsonData[] }) {
                           </span>
                           <button
                             className="opacity-0 group-hover/cmd:opacity-100 transition-opacity p-0.5 hover:dg-text-cyan shrink-0"
-                            title={i18n.t('FD 文件句柄使用率')}
+                            title={t('monitor.lbl.fdUsage')}
                             onClick={async (e) => {
                               e.stopPropagation();
                               try {

frontend/src/pages/monitor/middleware-monitor/MiddlewareDialog.tsx

@@ -10,7 +10,7 @@ import { Loader2 } from 'lucide-react';
 import { middlewareMonitorApi } from '@/api';
 import { toast } from 'sonner';
 import type { MwTarget } from './helpers';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 interface Props {
   open: boolean;
@@ -20,6 +20,7 @@ interface Props {
 }
 
 export function MiddlewareDialog({ open, onOpenChange, editTarget, onSuccess }: Props) {
+  const { t } = useTranslation();
   const [saving, setSaving] = useState(false);
   const [form, setForm] = useState({
     name: '', type: 'redis' as 'redis' | 'mysql', ip: '', port: 6379,
@@ -46,7 +47,7 @@ export function MiddlewareDialog({ open, onOpenChange, editTarget, onSuccess }:
 
   const handleSubmit = async () => {
     if (!form.name.trim() || !form.ip.trim()) {
-      toast.error(i18n.t('请填写名称和 IP'));
+      toast.error(t('monitor.lbl.nameIpRequired'));
       return;
     }
     setSaving(true);
@@ -63,15 +64,15 @@ export function MiddlewareDialog({ open, onOpenChange, editTarget, onSuccess }:
       }
       if (editTarget) {
         await middlewareMonitorApi.update(editTarget.id, payload);
-        toast.success(i18n.t('更新成功'));
+        toast.success(t('monitor.lbl.updateSuccess'));
       } else {
         await middlewareMonitorApi.create(payload);
-        toast.success(i18n.t('monitor.dashboard.custom.toastCreateSuccess'));
+        toast.success(t('monitor.dashboard.custom.toastCreateSuccess'));
       }
       onOpenChange(false);
       onSuccess();
     } catch (err) {
-      toast.error(editTarget ? i18n.t('kubernetes.deployment.imageUpdateFailed') : i18n.t('monitor.dashboard.custom.toastCreateFailed'), { description: (err as { message?: string }).message });
+      toast.error(editTarget ? t('kubernetes.deployment.imageUpdateFailed') : t('monitor.dashboard.custom.toastCreateFailed'), { description: (err as { message?: string }).message });
     } finally {
       setSaving(false);
     }
@@ -81,12 +82,12 @@ export function MiddlewareDialog({ open, onOpenChange, editTarget, onSuccess }:
     <Dialog open={open} onOpenChange={onOpenChange}>
       <DialogContent showOverlay={false} className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)] max-w-md">
         <DialogHeader>
-          <DialogTitle>{editTarget ? i18n.t('编辑中间件') : i18n.t('添加中间件')}</DialogTitle>
+          <DialogTitle>{editTarget ? t('monitor.lbl.editMw') : t('monitor.lbl.addMw')}</DialogTitle>
-          <DialogDescription> {i18n.t('监控实例')} </DialogDescription>
+          <DialogDescription> {t('monitor.lbl.instances')} </DialogDescription>
         </DialogHeader>
         <div className="space-y-4 max-h-[60vh] overflow-y-auto pr-1">
           <div className="space-y-2">
-            <Label> {i18n.t('system.credentialType')} </Label>
+            <Label> {t('system.credentialType')} </Label>
             <div className="flex gap-2">
               {(['redis', 'mysql'] as const).map((t) => (
                 <button key={t} type="button" onClick={() => setForm((f) => ({ ...f, type: t, port: t === 'redis' ? 6379 : 3306 }))}
@@ -98,9 +99,9 @@ export function MiddlewareDialog({ open, onOpenChange, editTarget, onSuccess }:
           </div>
           {form.type === 'redis' && (
             <div className="space-y-2">
-              <Label> {i18n.t('deploy.form.deployMode')} </Label>
+              <Label> {t('deploy.form.deployMode')} </Label>
               <div className="flex gap-2">
-                {[{ value: 'standalone' as const, label: i18n.t('单机') }, { value: 'cluster' as const, label: i18n.t('k8s.topology.typeCluster') }].map((opt) => (
+                {[{ value: 'standalone' as const, label: t('monitor.lbl.standalone') }, { value: 'cluster' as const, label: t('k8s.topology.typeCluster') }].map((opt) => (
                   <button key={opt.value} type="button" onClick={() => setForm((f) => ({ ...f, redis_mode: opt.value }))}
                     className={`flex-1 py-2 rounded-lg text-sm ${form.redis_mode === opt.value ? 'bg-blue-600 text-white' : 'bg-[var(--dg-bg-tertiary)]'}`}>
                     {opt.label}
@@ -110,7 +111,7 @@ export function MiddlewareDialog({ open, onOpenChange, editTarget, onSuccess }:
             </div>
           )}
           <div className="space-y-2">
-            <Label> {i18n.t('deploy.form.nameStar')} </Label>
+            <Label> {t('deploy.form.nameStar')} </Label>
             <Input value={form.name} onChange={(e) => setForm((f) => ({ ...f, name: e.target.value }))} />
           </div>
           <div className="grid grid-cols-3 gap-2">
@@ -119,7 +120,7 @@ export function MiddlewareDialog({ open, onOpenChange, editTarget, onSuccess }:
               <Input value={form.ip} onChange={(e) => setForm((f) => ({ ...f, ip: e.target.value }))} />
             </div>
             <div className="space-y-2">
-              <Label> {i18n.t('system.ldapPort')} </Label>
+              <Label> {t('system.ldapPort')} </Label>
               <Input type="number" value={form.port} onChange={(e) => setForm((f) => ({ ...f, port: Number(e.target.value) }))} />
             </div>
           </div>
@@ -130,21 +131,21 @@ export function MiddlewareDialog({ open, onOpenChange, editTarget, onSuccess }:
           {form.type === 'mysql' && (
             <div className="grid grid-cols-2 gap-2">
               <div className="space-y-2">
-                <Label> {i18n.t('system.userName')} </Label>
+                <Label> {t('system.userName')} </Label>
                 <Input value={form.username} onChange={(e) => setForm((f) => ({ ...f, username: e.target.value }))} />
               </div>
               <div className="space-y-2">
-                <Label> {i18n.t('k8s.topology.typeDatabase')} </Label>
+                <Label> {t('k8s.topology.typeDatabase')} </Label>
                 <Input value={form.database} onChange={(e) => setForm((f) => ({ ...f, database: e.target.value }))} />
               </div>
             </div>
           )}
         </div>
         <DialogFooter>
-          <Button variant="outline" onClick={() => onOpenChange(false)}> {i18n.t('rbac.jobRole.cancel')} </Button>
+          <Button variant="outline" onClick={() => onOpenChange(false)}> {t('rbac.jobRole.cancel')} </Button>
           <Button onClick={handleSubmit} disabled={saving}>
             {saving && <Loader2 className="h-4 w-4 mr-2 animate-spin" />}
-            {editTarget ? i18n.t('task.script.save') : i18n.t('rbac.jobRole.create')}
+            {editTarget ? t('task.script.save') : t('rbac.jobRole.create')}
           </Button>
         </DialogFooter>
       </DialogContent>

frontend/src/pages/monitor/middleware-monitor/MwOverviewCharts.tsx

@@ -10,7 +10,7 @@ import type { MwTarget } from './helpers';
 import { fmtHitRate, fmtVal } from './helpers';
 import { ChartExpandShell } from '../shared/ChartExpandShell';
 import { MonitorChartTooltip, MONITOR_PIE_STROKE, MonitorPieTooltip } from '../shared/monitorChartTheme';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 interface Props {
   targets: MwTarget[];
@@ -21,12 +21,13 @@ function shortName(name: string) {
 }
 
 export function MwOverviewCharts({ targets }: Props) {
+  const { t } = useTranslation();
   const statusData = useMemo(() => {
     const online = targets.filter((t) => t.status === 'online').length;
     const offline = targets.length - online;
     return [
-      { name: i18n.t('agent.agentOnline'), value: online, fill: 'var(--dg-green)' },
+      { name: t('agent.agentOnline'), value: online, fill: 'var(--dg-green)' },
-      { name: i18n.t('agent.agentOffline'), value: offline, fill: 'var(--dg-red)' },
+      { name: t('agent.agentOffline'), value: offline, fill: 'var(--dg-red)' },
     ].filter((d) => d.value > 0);
   }, [targets]);
 
@@ -53,7 +54,7 @@ export function MwOverviewCharts({ targets }: Props) {
 
   return (
     <div className="grid grid-cols-1 md:grid-cols-2 xl:grid-cols-4 gap-3">
-      <OverviewChartCard title={i18n.t('实例状态')} icon={<PieChartIcon className="h-3.5 w-3.5 text-[var(--dg-text-muted)]" />} empty={statusData.length === 0}>
+      <OverviewChartCard title={t('monitor.lbl.instanceStatus')} icon={<PieChartIcon className="h-3.5 w-3.5 text-[var(--dg-text-muted)]" />} empty={statusData.length === 0}>
         {(h) => (
           <ResponsiveContainer width="100%" height={h}>
             <PieChart>
@@ -67,13 +68,13 @@ export function MwOverviewCharts({ targets }: Props) {
         )}
       </OverviewChartCard>
 
-      <OverviewChartCard title={i18n.t('在线')} icon={<Percent className="h-3.5 w-3.5 text-[var(--dg-text-muted)]" />} empty={redisHitData.length === 0}>
+      <OverviewChartCard title={t('common.online')} icon={<Percent className="h-3.5 w-3.5 text-[var(--dg-text-muted)]" />} empty={redisHitData.length === 0}>
         {(h) => (
           <ResponsiveContainer width="100%" height={h}>
             <BarChart data={redisHitData} layout="vertical" margin={{ left: 0, right: 8 }}>
               <XAxis type="number" domain={[0, 100]} tick={{ fontSize: 9, fill: 'var(--dg-text-muted)' }} tickFormatter={(v) => `${v}%`} />
               <YAxis type="category" dataKey="name" width={64} tick={{ fontSize: 9, fill: 'var(--dg-text-muted)' }} tickLine={false} axisLine={false} />
-              <Tooltip content={<MonitorChartTooltip valueFormatter={(v) => fmtHitRate(v / 100)} nameFormatter={() => i18n.t('命中率')} />} />
+              <Tooltip content={<MonitorChartTooltip valueFormatter={(v) => fmtHitRate(v / 100)} nameFormatter={() => t('monitor.lbl.hitRate')} />} />
               <Bar dataKey="value" radius={[0, 3, 3, 0]} maxBarSize={14} isAnimationActive={false}>
                 {redisHitData.map((e) => <Cell key={e.fullName} fill={e.fill} />)}
               </Bar>
@@ -97,13 +98,13 @@ export function MwOverviewCharts({ targets }: Props) {
         )}
       </OverviewChartCard>
 
-      <OverviewChartCard title={i18n.t('monitor.mwoverviewchart.s07d3e014')} icon={<BarChart3 className="h-3.5 w-3.5 text-[var(--dg-text-muted)]" />} empty={mysqlConnData.length === 0}>
+      <OverviewChartCard title={t('monitor.mwoverviewchart.s07d3e014')} icon={<BarChart3 className="h-3.5 w-3.5 text-[var(--dg-text-muted)]" />} empty={mysqlConnData.length === 0}>
         {(h) => (
           <ResponsiveContainer width="100%" height={h}>
             <BarChart data={mysqlConnData} layout="vertical" margin={{ left: 0, right: 8 }}>
               <XAxis type="number" tick={{ fontSize: 9, fill: 'var(--dg-text-muted)' }} />
               <YAxis type="category" dataKey="name" width={64} tick={{ fontSize: 9, fill: 'var(--dg-text-muted)' }} tickLine={false} axisLine={false} />
-              <Tooltip content={<MonitorChartTooltip valueFormatter={(v) => fmtVal(v)} nameFormatter={() => i18n.t('连接')} />} />
+              <Tooltip content={<MonitorChartTooltip valueFormatter={(v) => fmtVal(v)} nameFormatter={() => t('monitor.lbl.connections')} />} />
               <Bar dataKey="value" radius={[0, 3, 3, 0]} maxBarSize={14} isAnimationActive={false}>
                 {mysqlConnData.map((e) => <Cell key={e.fullName} fill={e.fill} />)}
               </Bar>

frontend/src/pages/monitor/middleware-monitor/MwTargetChartsPanel.tsx

@@ -18,7 +18,7 @@ import { MwTrendChart } from './MwTrendChart';
 import { MwGaugeBar } from './MwGaugeBar';
 import { MwHealthStrip } from './MwHealthStrip';
 import { ChartExpandShell } from '../shared/ChartExpandShell';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 interface Props {
   target: MwTarget | null;
@@ -27,6 +27,7 @@ interface Props {
 }
 
 export function MwTargetChartsPanel({ target, chartDefs, accent }: Props) {
+  const { t } = useTranslation();
   const [timeRange, setTimeRange] = useState<MwTimeRange>('6h');
   const [historyMap, setHistoryMap] = useState<Record<string, Array<{ timestamp: number; value: number }>>>({});
   const [loading, setLoading] = useState(false);
@@ -92,15 +93,15 @@ export function MwTargetChartsPanel({ target, chartDefs, accent }: Props) {
           </div>
           <div className="flex items-center gap-1.5">
             <Button variant="ghost" size="sm" className="h-7 text-xs" onClick={() => setShowAll((v) => !v)}>
-              {showAll ? i18n.t('核心指标') : i18n.t('全部指标')}
+              {showAll ? t('monitor.lbl.coreMetrics') : t('monitor.lbl.allMetrics')}
             </Button>
             <Select value={timeRange} onValueChange={(v) => setTimeRange(v as MwTimeRange)}>
               <SelectTrigger className="h-7 w-[92px] text-xs"><SelectValue /></SelectTrigger>
               <SelectContent>
-                <SelectItem value="1h"> {i18n.t('monitor.helpersts.sf972b7b1')} </SelectItem>
+                <SelectItem value="1h"> {t('monitor.helpersts.sf972b7b1')} </SelectItem>
-                <SelectItem value="6h"> {i18n.t('monitor.siteProtocol.rangeDefault')} </SelectItem>
+                <SelectItem value="6h"> {t('monitor.siteProtocol.rangeDefault')} </SelectItem>
-                <SelectItem value="24h"> {i18n.t('monitor.helpersts.s6e99b786')} </SelectItem>
+                <SelectItem value="24h"> {t('monitor.helpersts.s6e99b786')} </SelectItem>
-                <SelectItem value="7d"> {i18n.t('monitor.helpersts.sd765efc4')} </SelectItem>
+                <SelectItem value="7d"> {t('monitor.helpersts.sd765efc4')} </SelectItem>
               </SelectContent>
             </Select>
             <Button variant="outline" size="sm" className="h-7 text-xs" onClick={loadCharts} disabled={loading}>
@@ -116,20 +117,20 @@ export function MwTargetChartsPanel({ target, chartDefs, accent }: Props) {
           {accent === 'redis' && (
             <>
               <MwGaugeBar
-                label={i18n.t('命中率')}
+                label={t('monitor.lbl.hitRate')}
                 value={(m.redis_hit_rate || 0) * 100}
                 display={fmtHitRate(m.redis_hit_rate)}
                 level={m.redis_hit_rate > 0 ? gaugeToneLow((m.redis_hit_rate || 0) * 100, 90, 80) : 'ok'}
               />
               <MwGaugeBar
-                label={i18n.t('命中率')}
+                label={t('monitor.lbl.hitRate')}
                 value={memPct ?? (m.redis_used_memory > 0 ? 50 : 0)}
                 display={fmtMemory(m.redis_used_memory)}
                 level={memPct != null ? gaugeTone(memPct, 80, 90) : 'ok'}
-                hint={memPct != null ? `已用 ${memPct.toFixed(0)}%` : i18n.t('未配置 maxmemory')}
+                hint={memPct != null ? `已用 ${memPct.toFixed(0)}%` : t('monitor.lbl.noMaxMemory')}
               />
               <MwGaugeBar
-                label={i18n.t('kubernetes.topology.connections')}
+                label={t('kubernetes.topology.connections')}
                 value={Math.min(100, (m.redis_connected_clients || 0) / 2)}
                 display={fmtVal(m.redis_connected_clients)}
                 level={(m.redis_blocked_clients || 0) > 0 ? 'warn' : 'ok'}
@@ -140,19 +141,19 @@ export function MwTargetChartsPanel({ target, chartDefs, accent }: Props) {
           {accent === 'mysql' && (
             <>
               <MwGaugeBar
-                label={i18n.t('命中率')}
+                label={t('monitor.lbl.hitRate')}
                 value={(m.mysql_buffer_hit_rate || 0) * 100}
                 display={fmtHitRate(m.mysql_buffer_hit_rate)}
                 level={m.mysql_buffer_hit_rate > 0 ? gaugeToneLow((m.mysql_buffer_hit_rate || 0) * 100, 95, 90) : 'ok'}
               />
               <MwGaugeBar
-                label={i18n.t('命中率')}
+                label={t('monitor.lbl.hitRate')}
                 value={connPct ?? 0}
                 display={`${fmtVal(m.mysql_connections)} / ${fmtVal(m.mysql_max_connections)}`}
                 level={connPct != null ? gaugeTone(connPct, 80, 90) : 'ok'}
               />
               <MwGaugeBar
-                label={i18n.t('命中率')}
+                label={t('monitor.lbl.hitRate')}
                 value={Math.min(100, (m.mysql_threads_running || 0) * 5)}
                 display={fmtVal(m.mysql_threads_running)}
                 level={(m.mysql_threads_running || 0) > 20 ? 'warn' : 'ok'}
@@ -167,16 +168,16 @@ export function MwTargetChartsPanel({ target, chartDefs, accent }: Props) {
           {accent === 'redis' ? (
             <>
               <SummaryTile label="QPS" value={fmtVal(m.redis_qps, 1)} />
-              <SummaryTile label={i18n.t('碎片率')} value={fmtVal(m.redis_db_size)} />
+              <SummaryTile label={t('monitor.lbl.fragmentationRate')} value={fmtVal(m.redis_db_size)} />
-              <SummaryTile label={i18n.t('碎片率')} value={fmtVal(m.redis_evicted_keys)} warn={(m.redis_evicted_keys || 0) > 0} />
+              <SummaryTile label={t('monitor.lbl.fragmentationRate')} value={fmtVal(m.redis_evicted_keys)} warn={(m.redis_evicted_keys || 0) > 0} />
-              <SummaryTile label={i18n.t('逐出 Key')} value={m.redis_mem_fragmentation_ratio ? fmtVal(m.redis_mem_fragmentation_ratio, 2) : '--'} />
+              <SummaryTile label={t('monitor.lbl.evictedKeys')} value={m.redis_mem_fragmentation_ratio ? fmtVal(m.redis_mem_fragmentation_ratio, 2) : '--'} />
             </>
           ) : (
             <>
               <SummaryTile label="QPS" value={fmtVal(m.mysql_qps, 1)} />
-              <SummaryTile label={i18n.t('发送流量')} value={fmtMemory(m.mysql_bytes_received)} />
+              <SummaryTile label={t('monitor.lbl.trafficSent')} value={fmtMemory(m.mysql_bytes_received)} />
-              <SummaryTile label={i18n.t('发送流量')} value={fmtMemory(m.mysql_bytes_sent)} />
+              <SummaryTile label={t('monitor.lbl.trafficSent')} value={fmtMemory(m.mysql_bytes_sent)} />
-              <SummaryTile label={i18n.t('agent.agentUptime')} value={m.mysql_uptime ? `${Math.floor(m.mysql_uptime / 3600)}h` : '--'} />
+              <SummaryTile label={t('agent.agentUptime')} value={m.mysql_uptime ? `${Math.floor(m.mysql_uptime / 3600)}h` : '--'} />
             </>
           )}
         </div>

frontend/src/pages/monitor/middleware-monitor/helpers.ts

@@ -60,7 +60,7 @@ export const MYSQL_PRIMARY_KEYS = ['mysql_qps', 'mysql_connections', 'mysql_buff
 export const REDIS_CHARTS: MwChartDef[] = [
   { key: 'redis_qps', label: 'QPS', color: 'var(--dg-blue)', unit: 'ops/s' },
   { key: 'redis_used_memory', label: i18n.t('内存占用'), color: 'var(--dg-red)', formatter: fmtMemory },
-  { key: 'redis_hit_rate', label: i18n.t('命中率'), color: 'var(--dg-green)', percent: true },
+  { key: 'redis_hit_rate', label: i18n.t('monitor.lbl.hitRate'), color: 'var(--dg-green)', percent: true },
   { key: 'redis_connected_clients', label: i18n.t('kubernetes.topology.connections'), color: 'var(--dg-cyan)' },
   { key: 'redis_db_size', label: i18n.t('慢查询速率'), color: 'var(--dg-purple)' },
   { key: 'redis_blocked_clients', label: i18n.t('阻塞客户端'), color: 'var(--dg-orange)' },

frontend/src/pages/monitor/shared/ChartRangeHint.tsx

@@ -1,7 +1,7 @@
 // 图表选区提示 — 仅缩放后显示恢复入口 // Logan.Li
 import { ZoomOut } from 'lucide-react';
 import { Button } from '@/components/ui/button';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 interface Props {
   label: string | null;
@@ -10,10 +10,11 @@ interface Props {
 }
 
 export function ChartRangeHint({ label, zoomed, onReset }: Props) {
+  const { t } = useTranslation();
   if (!zoomed) return null;
   return (
     <div className="flex items-center justify-between text-[10px] text-[var(--dg-text-muted)] mt-1 px-0.5">
-      <span> {i18n.t('monitor.chartrangehintt.s39ce9bad')} <span className="text-[var(--dg-text-primary)] font-mono">{label}</span></span>
+      <span> {t('monitor.chartrangehintt.s39ce9bad')} <span className="text-[var(--dg-text-primary)] font-mono">{label}</span></span>
       <Button type="button" variant="ghost" size="sm" className="h-6 text-[10px] px-2" onClick={onReset}>
         <ZoomOut className="h-3 w-3 mr-1" />恢复全量
       </Button>

frontend/src/pages/monitor/site-monitor/SiteProtocolPieChart.tsx

@@ -6,7 +6,7 @@ import { Card, CardContent } from '@/components/ui/card';
 import { PieChart as PieChartIcon } from 'lucide-react';
 import { PROBE_TYPE_OPTIONS, normalizeProbeType } from './helpers';
 import type { SiteTask } from './helpers';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 interface Props {
   tasks: SiteTask[];
@@ -21,6 +21,7 @@ const PROTOCOL_COLORS: Record<string, string> = {
 };
 
 export function SiteProtocolPieChart({ tasks }: Props) {
+  const { t } = useTranslation();
   const protocolData = useMemo(() => {
     const counts: Record<string, number> = {};
     for (const t of PROBE_TYPE_OPTIONS) counts[t] = 0;
@@ -36,7 +37,7 @@ export function SiteProtocolPieChart({ tasks }: Props) {
   if (tasks.length === 0) {
     return (
       <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
-        <CardContent className="p-6 text-center text-sm text-[var(--dg-text-muted)]"> {i18n.t('可用率(24h)')} </CardContent>
+        <CardContent className="p-6 text-center text-sm text-[var(--dg-text-muted)]"> {t('monitor.lbl.availability24h')} </CardContent>
       </Card>
     );
   }
@@ -46,7 +47,7 @@ export function SiteProtocolPieChart({ tasks }: Props) {
       <CardContent className="p-4">
         <div className="flex items-center gap-2 mb-2">
           <PieChartIcon className="h-4 w-4 text-[var(--dg-text-muted)]" />
-          <h3 className="text-sm font-medium text-[var(--dg-text-primary)]"> {i18n.t('可用率(24h)')} </h3>
+          <h3 className="text-sm font-medium text-[var(--dg-text-primary)]"> {t('monitor.lbl.availability24h')} </h3>
           <span className="text-[10px] text-[var(--dg-text-muted)]">共 {tasks.length} 个任务</span>
         </div>
         <ResponsiveContainer width="100%" height={200}>

frontend/src/pages/monitor/site-monitor/SiteResultsPanel.tsx

@@ -19,6 +19,7 @@ import {
   SITE_TIME_RANGE_HOURS, SITE_TIME_RANGE_LABELS,
 } from './helpers';
 import { SiteProtocolObs } from './observability/SiteProtocolObs';
+import { useTranslation } from 'react-i18next';
 import i18n from '@/i18n';
 
 interface Props {
@@ -48,6 +49,7 @@ function httpCodeBadge(code?: number, expected = 200) {
 }
 
 export function SiteResultsPanel({ task, onProbed, fullPage = false }: Props) {
+  const { t } = useTranslation();
   const [results, setResults] = useState<SiteResult[]>([]);
   const [loading, setLoading] = useState(false);
   const [probing, setProbing] = useState(false);
@@ -77,11 +79,11 @@ export function SiteResultsPanel({ task, onProbed, fullPage = false }: Props) {
     setProbing(true);
     try {
       await siteApi.probeNow(task.id);
-      toast.success(i18n.t('拨测完成'));
+      toast.success(t('monitor.lbl.probeDone'));
       loadResults();
       onProbed();
     } catch (e) {
-      toast.error((e as { message?: string }).message || i18n.t('拨测失败'));
+      toast.error((e as { message?: string }).message || t('monitor.lbl.probeFail'));
     } finally {
       setProbing(false);
     }
@@ -117,41 +119,41 @@ export function SiteResultsPanel({ task, onProbed, fullPage = false }: Props) {
       case 'HTTP':
         return (
           <TableRow className="border-[var(--dg-border)] hover:bg-transparent">
-            <TableHead className="text-xs"> {i18n.t('system.auditTime')} </TableHead>
+            <TableHead className="text-xs"> {t('system.auditTime')} </TableHead>
-            <TableHead className="text-xs"> {i18n.t('system.terminalStatus')} </TableHead>
+            <TableHead className="text-xs"> {t('system.terminalStatus')} </TableHead>
-            <TableHead className="text-xs"> {i18n.t('monitor.siteProtocol.http.statusCodeName')} </TableHead>
+            <TableHead className="text-xs"> {t('monitor.siteProtocol.http.statusCodeName')} </TableHead>
-            <TableHead className="text-xs"> {i18n.t('monitor.siteProtocol.latency.latencyName')} </TableHead>
+            <TableHead className="text-xs"> {t('monitor.siteProtocol.latency.latencyName')} </TableHead>
-            <TableHead className="text-xs"> {i18n.t('cloud.colDescription')} </TableHead>
+            <TableHead className="text-xs"> {t('cloud.colDescription')} </TableHead>
           </TableRow>
         );
       case 'SSL':
         return (
           <TableRow className="border-[var(--dg-border)] hover:bg-transparent">
-            <TableHead className="text-xs"> {i18n.t('system.auditTime')} </TableHead>
+            <TableHead className="text-xs"> {t('system.auditTime')} </TableHead>
-            <TableHead className="text-xs"> {i18n.t('编辑拨测任务')} </TableHead>
+            <TableHead className="text-xs"> {t('monitor.lbl.editTask')} </TableHead>
-            <TableHead className="text-xs"> {i18n.t('编辑拨测任务')} </TableHead>
+            <TableHead className="text-xs"> {t('monitor.lbl.editTask')} </TableHead>
-            <TableHead className="text-xs"> {i18n.t('monitor.siteProtocol.ssl.daysName')} </TableHead>
+            <TableHead className="text-xs"> {t('monitor.siteProtocol.ssl.daysName')} </TableHead>
-            <TableHead className="text-xs"> {i18n.t('monitor.siteProtocol.ssl.issuer')} </TableHead>
+            <TableHead className="text-xs"> {t('monitor.siteProtocol.ssl.issuer')} </TableHead>
           </TableRow>
         );
       case 'TCP':
         return (
           <TableRow className="border-[var(--dg-border)] hover:bg-transparent">
-            <TableHead className="text-xs"> {i18n.t('system.auditTime')} </TableHead>
+            <TableHead className="text-xs"> {t('system.auditTime')} </TableHead>
-            <TableHead className="text-xs"> {i18n.t('monitor.siteProtocol.tcp.connected')} </TableHead>
+            <TableHead className="text-xs"> {t('monitor.siteProtocol.tcp.connected')} </TableHead>
-            <TableHead className="text-xs"> {i18n.t('monitor.siteProtocol.latency.latencyName')} </TableHead>
+            <TableHead className="text-xs"> {t('monitor.siteProtocol.latency.latencyName')} </TableHead>
-            <TableHead className="text-xs"> {i18n.t('编辑拨测任务')} </TableHead>
+            <TableHead className="text-xs"> {t('monitor.lbl.editTask')} </TableHead>
-            <TableHead className="text-xs"> {i18n.t('cloud.colDescription')} </TableHead>
+            <TableHead className="text-xs"> {t('cloud.colDescription')} </TableHead>
           </TableRow>
         );
       default:
         return (
           <TableRow className="border-[var(--dg-border)] hover:bg-transparent">
-            <TableHead className="text-xs"> {i18n.t('system.auditTime')} </TableHead>
+            <TableHead className="text-xs"> {t('system.auditTime')} </TableHead>
-            <TableHead className="text-xs"> {i18n.t('system.terminalStatus')} </TableHead>
+            <TableHead className="text-xs"> {t('system.terminalStatus')} </TableHead>
-            <TableHead className="text-xs"> {i18n.t('monitor.siteProtocol.latency.latencyName')} </TableHead>
+            <TableHead className="text-xs"> {t('monitor.siteProtocol.latency.latencyName')} </TableHead>
-            <TableHead className="text-xs"> {i18n.t('编辑拨测任务')} </TableHead>
+            <TableHead className="text-xs"> {t('monitor.lbl.editTask')} </TableHead>
-            <TableHead className="text-xs"> {i18n.t('cloud.colDescription')} </TableHead>
+            <TableHead className="text-xs"> {t('cloud.colDescription')} </TableHead>
           </TableRow>
         );
     }
@@ -188,7 +190,7 @@ export function SiteResultsPanel({ task, onProbed, fullPage = false }: Props) {
             <TableCell>{statusBadge(r.status)}</TableCell>
             <TableCell className="text-xs">{fmtMs(r.response_time || r.total_time)}</TableCell>
             <TableCell className="text-xs text-[var(--dg-text-muted)] truncate max-w-[120px]">{r.remote_ip || '--'}</TableCell>
-            <TableCell className="text-xs text-[var(--dg-text-muted)] max-w-[160px] truncate">{r.error_message || (r.status === 'success' ? i18n.t('monitor.siteProtocol.tcp.connected') : '--')}</TableCell>
+            <TableCell className="text-xs text-[var(--dg-text-muted)] max-w-[160px] truncate">{r.error_message || (r.status === 'success' ? t('monitor.siteProtocol.tcp.connected') : '--')}</TableCell>
           </TableRow>
         );
       default:
@@ -223,10 +225,10 @@ export function SiteResultsPanel({ task, onProbed, fullPage = false }: Props) {
           <Select value={timeRange} onValueChange={(v) => setTimeRange(v as SiteTimeRange)}>
             <SelectTrigger className="h-7 w-[92px] text-xs"><SelectValue /></SelectTrigger>
             <SelectContent>
-              <SelectItem value="1h"> {i18n.t('探测次数')} </SelectItem>
+              <SelectItem value="1h"> {t('monitor.lbl.totalProbes')} </SelectItem>
-              <SelectItem value="6h"> {i18n.t('monitor.siteProtocol.rangeDefault')} </SelectItem>
+              <SelectItem value="6h"> {t('monitor.siteProtocol.rangeDefault')} </SelectItem>
-              <SelectItem value="24h"> {i18n.t('探测次数')} </SelectItem>
+              <SelectItem value="24h"> {t('monitor.lbl.totalProbes')} </SelectItem>
-              <SelectItem value="7d"> {i18n.t('探测次数')} </SelectItem>
+              <SelectItem value="7d"> {t('monitor.lbl.totalProbes')} </SelectItem>
             </SelectContent>
           </Select>
           <Button variant="outline" size="sm" className="h-7 text-xs" onClick={loadResults} disabled={loading}>
@@ -259,7 +261,7 @@ export function SiteResultsPanel({ task, onProbed, fullPage = false }: Props) {
           <SiteProtocolObs task={task} results={results} rangeLabel={rangeLabel} />
           <div className={`mt-4 overflow-x-auto ${fullPage ? 'max-h-80' : 'max-h-56'}`}>
             {results.length === 0 ? (
-              <p className="text-center py-6 text-sm text-[var(--dg-text-muted)]"> {i18n.t('可用率(24h)')} </p>
+              <p className="text-center py-6 text-sm text-[var(--dg-text-muted)]"> {t('monitor.lbl.availability24h')} </p>
             ) : (
               <Table>
                 <TableHeader>{renderTableHead()}</TableHeader>

frontend/src/pages/monitor/snmp-monitor/SnmpDeviceChartsPanel.tsx

@@ -15,7 +15,7 @@ import {
   SNMP_TIME_RANGE_HOURS, fmtMetricValue, isSnmpCounterMetric, metricColor, pickSeriesByCategory,
 } from './helpers';
 import { SnmpMetricTrendChart } from './SnmpMetricTrendChart';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 interface Props {
   device: SnmpDevice | null;
@@ -30,6 +30,7 @@ interface ChartBlock {
 }
 
 export function SnmpDeviceChartsPanel({ device, templateName }: Props) {
+  const { t } = useTranslation();
   const [timeRange, setTimeRange] = useState<SnmpTimeRange>('24h');
   const [series, setSeries] = useState<SnmpMetricSeries[]>([]);
   const [charts, setCharts] = useState<ChartBlock[]>([]);
@@ -115,9 +116,9 @@ export function SnmpDeviceChartsPanel({ device, templateName }: Props) {
                 <SelectValue />
               </SelectTrigger>
               <SelectContent>
-                <SelectItem value="6h"> {i18n.t('monitor.siteProtocol.rangeDefault')} </SelectItem>
+                <SelectItem value="6h"> {t('monitor.siteProtocol.rangeDefault')} </SelectItem>
-                <SelectItem value="24h"> {i18n.t('选择模板')} </SelectItem>
+                <SelectItem value="24h"> {t('monitor.lbl.selectTemplate')} </SelectItem>
-                <SelectItem value="7d"> {i18n.t('选择模板')} </SelectItem>
+                <SelectItem value="7d"> {t('monitor.lbl.selectTemplate')} </SelectItem>
               </SelectContent>
             </Select>
             <Button variant="outline" size="sm" className="h-7 text-xs" onClick={loadCharts} disabled={loading}>
@@ -129,9 +130,9 @@ export function SnmpDeviceChartsPanel({ device, templateName }: Props) {
 
         <div className="grid grid-cols-3 gap-3 mb-4">
           {[
-            { label: i18n.t('设备总数'), value: latestCpu ? fmtMetricValue(latestCpu.latest_value, latestCpu.unit || '%') : '--' },
+            { label: t('monitor.lbl.totalDevices'), value: latestCpu ? fmtMetricValue(latestCpu.latest_value, latestCpu.unit || '%') : '--' },
-            { label: i18n.t('设备总数'), value: latestMem ? fmtMetricValue(latestMem.latest_value, latestMem.unit || '%') : '--' },
+            { label: t('monitor.lbl.totalDevices'), value: latestMem ? fmtMetricValue(latestMem.latest_value, latestMem.unit || '%') : '--' },
-            { label: i18n.t('设备总数'), value: i18n.t('设备总数') },
+            { label: t('monitor.lbl.totalDevices'), value: t('monitor.lbl.totalDevices') },
           ].map((item) => (
             <div key={item.label} className="rounded-lg bg-[var(--dg-bg-tertiary)] p-3 text-center">
               <p className="text-[10px] text-[var(--dg-text-muted)]">{item.label}</p>

frontend/src/pages/monitor/snmp-monitor/SnmpOverviewCharts.tsx

@@ -9,7 +9,7 @@ import { BarChart3, PieChart as PieChartIcon } from 'lucide-react';
 import type { SnmpDevice, SnmpOverviewItem } from './helpers';
 import { fmtMetricValue, statusColor } from './helpers';
 import { MonitorChartTooltip, MONITOR_PIE_STROKE, MonitorPieTooltip } from '../shared/monitorChartTheme';
-import i18n from '@/i18n';
+import { useTranslation } from 'react-i18next';
 
 interface Props {
   devices: SnmpDevice[];
@@ -17,14 +17,15 @@ interface Props {
 }
 
 export function SnmpOverviewCharts({ devices, overview }: Props) {
+  const { t } = useTranslation();
   const statusData = useMemo(() => {
     const online = devices.filter((d) => d.status === 'online').length;
     const error = devices.filter((d) => d.status === 'error').length;
     const offline = devices.length - online - error;
     return [
-      { name: i18n.t('agent.agentOnline'), value: online, fill: 'var(--dg-green)' },
+      { name: t('agent.agentOnline'), value: online, fill: 'var(--dg-green)' },
-      { name: i18n.t('agent.heartbeatAbnormal'), value: error, fill: 'var(--dg-red)' },
+      { name: t('agent.heartbeatAbnormal'), value: error, fill: 'var(--dg-red)' },
-      { name: i18n.t('agent.agentOffline'), value: offline, fill: 'var(--dg-text-muted)' },
+      { name: t('agent.agentOffline'), value: offline, fill: 'var(--dg-text-muted)' },
     ].filter((d) => d.value > 0);
   }, [devices]);
 
@@ -48,10 +49,10 @@ export function SnmpOverviewCharts({ devices, overview }: Props) {
         <CardContent className="p-4">
           <div className="flex items-center gap-2 mb-3">
             <BarChart3 className="h-4 w-4 text-[var(--dg-text-muted)]" />
-            <h3 className="text-sm font-medium text-[var(--dg-text-primary)]"> {i18n.t('monitor.snmpoverviewcha.s64f5a4da')} </h3>
+            <h3 className="text-sm font-medium text-[var(--dg-text-primary)]"> {t('monitor.snmpoverviewcha.s64f5a4da')} </h3>
           </div>
           {cpuData.length === 0 ? (
-            <p className="text-xs text-[var(--dg-text-muted)] py-8 text-center"> {i18n.t('monitor.snmpoverviewcha.s1f441890')} </p>
+            <p className="text-xs text-[var(--dg-text-muted)] py-8 text-center"> {t('monitor.snmpoverviewcha.s1f441890')} </p>
           ) : (
             <ResponsiveContainer width="100%" height={Math.max(160, cpuData.length * 36)}>
               <BarChart data={cpuData} layout="vertical" margin={{ top: 0, right: 16, left: 0, bottom: 0 }}>
@@ -99,7 +100,7 @@ export function SnmpOverviewCharts({ devices, overview }: Props) {
         <CardContent className="p-4">
           <div className="flex items-center gap-2 mb-3">
             <PieChartIcon className="h-4 w-4 text-[var(--dg-text-muted)]" />
-            <h3 className="text-sm font-medium text-[var(--dg-text-primary)]"> {i18n.t('monitor.snmpoverviewcha.sbb0ae97f')} </h3>
+            <h3 className="text-sm font-medium text-[var(--dg-text-primary)]"> {t('monitor.snmpoverviewcha.sbb0ae97f')} </h3>
           </div>
           <ResponsiveContainer width="100%" height={180}>
             <PieChart>