feat(i18n): 全量中英文国际化改造

- 翻译 en-US.json 中 1006 条未翻译的中文条目为英文
- 提取 30+ 组件文件的硬编码中文到 locale JSON
- 新增 900+ 翻译键覆盖所有业务模块:
  - Layout (Sidebar, Header, Breadcrumb)
  - Server (ServerForm, CloudServerImport, WebShell, RdpTools)
  - Deploy (ReleaseManager, PipelineCreate, AppRelease)
  - Kubernetes (DeploymentEdit, PodExec, PodLogs, ResourceEditor)
  - Monitor (UnifiedQueryPanel, AlertCenter, Prometheus/Grafana Dashboard)
  - AIOps (predictUtils, PredictiveCostTab, AIPredictive)
  - System (useLdapManagement, AgentMonitor, AgentWizard)
- tsc --noEmit 类型检查通过

frontend/src/components/server/WebShell.tsx

@@ -1,4 +1,5 @@
 import { useState, useRef, useEffect } from 'react';
+import { useTranslation } from 'react-i18next';
 import { cn } from '@/lib/utils';
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
 import { Button } from '@/components/ui/button';
@@ -53,6 +54,7 @@ interface TermEntry {
 }
 
 export function WebShell() {
+  const { t } = useTranslation();
   const [servers, setServers] = useState<JsonData[]>([]);
   const [sessions, setSessions] = useState<TerminalSession[]>([]);
   const [activeSession, setActiveSession] = useState<string | null>(null);
@@ -70,7 +72,7 @@ export function WebShell() {
       const res: JsonData = await serverApi.getServers();
       setServers(res?.list || []);
     } catch (e) {
-      console.error('加载服务器列表失败:', e);
+      console.error('loadServers error:', e);
       setServers([]);
     }
   };
@@ -150,11 +152,11 @@ export function WebShell() {
     };
 
     ws.onopen = () => {
-      term.write(`\x1b[32m正在连接 ${server.hostname} (${server.ip})...\x1b[0m\r\n`);
+      term.write(`\x1b[32m${t('server.connecting', { name: server.hostname, ip: server.ip })}\x1b[0m\r\n`);
     };
 
     ws.onclose = () => {
-      term.write('\r\n\x1b[31m[连接已关闭]\x1b[0m\r\n');
+      term.write(`\r\n\x1b[31m[${t('server.connectionClosed')}]\r\n`);
       setSessions((prev) =>
         prev.map((s) => (s.id === sessionId ? { ...s, connected: false, ready: true } : s))
       );
@@ -162,7 +164,7 @@ export function WebShell() {
 
     ws.onerror = () => {
       setSessions((prev) => prev.map((s) => (s.id === sessionId ? { ...s, ready: true } : s)));
-      term.write('\r\n\x1b[31m[连接发生错误]\x1b[0m\r\n');
+      term.write(`\r\n\x1b[31m[${t('server.connectionError')}]\r\n`);
     };
 
     termsRef.current.set(sessionId, { term, ws, fit, opened: false });
@@ -256,7 +258,7 @@ export function WebShell() {
           entry.opened = true;
           entry.resizeCleanup = attachTerminalResize(el, entry.fit, entry.term, entry.ws);
         } catch (e) {
-          console.error('打开终端失败:', e);
+          console.error('openTerminal error:', e);
         }
       }
     } else {
@@ -276,33 +278,33 @@ export function WebShell() {
         <div className="flex items-center justify-between">
           <div>
             <h1 className="text-2xl font-bold text-[var(--dg-text-primary)]">WebShell</h1>
-            <p className="text-sm text-[var(--dg-text-secondary)] mt-1">远程服务器终端管理</p>
+            <p className="text-sm text-[var(--dg-text-secondary)] mt-1">{t('server.remoteTerminal')}</p>
           </div>
           <div className="flex items-center gap-2">
             <Dialog open={dialogOpen} onOpenChange={setDialogOpen}>
               <DialogTrigger asChild>
                 <Button className="bg-[var(--dg-blue)] hover:opacity-90 text-white">
                   <Plus className="h-4 w-4 mr-2" />
-                  新建连接
+                  {t('server.newConnection')}
                 </Button>
               </DialogTrigger>
               <DialogContent className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
                 <DialogHeader>
-                  <DialogTitle className="text-[var(--dg-text-primary)]">新建终端连接</DialogTitle>
+                  <DialogTitle className="text-[var(--dg-text-primary)]">{t('server.newTerminal')}</DialogTitle>
                   <DialogDescription className="text-[var(--dg-text-secondary)]">
-                    选择要连接的服务器
+                    {t('server.selectServer')}
                   </DialogDescription>
                 </DialogHeader>
                 <div className="space-y-4 py-4">
                   <div className="space-y-2">
-                    <label className="text-sm font-medium text-[var(--dg-text-secondary)]">选择服务器</label>
+                    <label className="text-sm font-medium text-[var(--dg-text-secondary)]">{t('server.selectServer')}</label>
                     <Select value={selectedServer} onValueChange={setSelectedServer}>
                       <SelectTrigger className="bg-[var(--dg-bg-tertiary)] border-[var(--dg-border)] text-[var(--dg-text-primary)]">
-                        <SelectValue placeholder="选择服务器" />
+                        <SelectValue placeholder={t('server.selectServer')} />
                       </SelectTrigger>
                       <SelectContent className="bg-[var(--dg-bg-tertiary)] border-[var(--dg-border)]">
                         {runningServers.length === 0 ? (
-                          <SelectItem value="__none" disabled>暂无运行中的服务器</SelectItem>
+                          <SelectItem value="__none" disabled>{t('server.noRunningServers')}</SelectItem>
                         ) : (
                           runningServers.map((server) => (
                             <SelectItem key={server.id} value={server.id}>
@@ -325,7 +327,7 @@ export function WebShell() {
                     className="bg-[var(--dg-blue)] hover:opacity-90 text-white"
                   >
                     <Terminal className="h-4 w-4 mr-2" />
-                    连接
+                    {t('server.webshellConnect')}
                   </Button>
                 </DialogFooter>
               </DialogContent>
@@ -372,7 +374,7 @@ export function WebShell() {
                   ))}
                 </div>
               ) : (
-                <span className="text-sm text-[var(--dg-text-secondary)]">暂无连接</span>
+                <span className="text-sm text-[var(--dg-text-secondary)]">{t('server.noConnections')}</span>
               )}
             </div>
             <div className="flex items-center gap-1">
@@ -410,7 +412,7 @@ export function WebShell() {
                 <TerminalLoadingOverlay
                   key={`${session.id}-loading`}
                   show={activeSession === session.id && !session.ready}
-                  label="正在登录..."
+                  label={t('server.webshellLoggingIn')}
                 />
               ))}
             </div>
@@ -420,8 +422,8 @@ export function WebShell() {
               style={{ height: terminalHeight }}
             >
               <Terminal className="h-16 w-16 mb-4 opacity-50" />
-              <p className="text-lg font-medium">暂无活动连接</p>
-              <p className="text-sm mt-1">点击“新建连接”开始远程会话</p>
+              <p className="text-lg font-medium">{t('server.noActiveConnections')}</p>
+              <p className="text-sm mt-1">{t('server.newConnectionHint')}</p>
             </div>
           )}
         </CardContent>
@@ -431,7 +433,7 @@ export function WebShell() {
       {activeSessionData && (
         <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
           <CardHeader className="pb-2">
-            <CardTitle className="text-sm text-[var(--dg-text-secondary)]">快捷命令</CardTitle>
+            <CardTitle className="text-sm text-[var(--dg-text-secondary)]">{t('server.quickCommands')}</CardTitle>
           </CardHeader>
           <CardContent>
             <div className="flex flex-wrap gap-2">