feat(i18n): 安全批量转换 135 文件 — 覆盖率 34%→62%

使用 i18n.t() 全局方式（避免 hook 定位问题）:
- 288 目标文件中 135 个成功转换
- 2228 处中文替换为 i18n.t() 调用
- 1006 个新翻译 key 添加到 zh-CN.json + en-US.json
- 词典总量: 3554 keys (22 namespaces)
- tsc 零错误 + Vite 构建成功
- 6 个含代码示例/数据字符串的文件安全回退

frontend/src/components/deploy/credential-manager/constants.ts

@@ -4,15 +4,16 @@ import {
   Key, Server, Container, Shield, Cloud, Database, FileText, Globe,
 } from 'lucide-react';
 import type { SecretType } from './types';
+import i18n from '@/i18n';
 
 export const TYPE_CONFIG: Record<SecretType, { label: string; icon: typeof Key; color: string; desc: string }> = {
-  ssh:      { label: 'SSH 密钥', icon: Server, color: 'dg-text-yellow', desc: 'SSH 私钥/公钥/密码' },
-  docker:   { label: 'Docker 凭证', icon: Container, color: 'dg-text-cyan', desc: 'Docker Registry 登录凭据' },
-  tls:      { label: 'TLS 证书', icon: Shield, color: 'dg-text-green', desc: 'TLS/SSL 证书与私钥' },
-  aksk:     { label: 'AKSK 密钥', icon: Cloud, color: 'dg-text-purple', desc: '云服务 AccessKey/SecretKey' },
-  database: { label: '数据库凭证', icon: Database, color: 'dg-text-blue', desc: '数据库连接信息' },
-  api:      { label: 'API 密钥', icon: Globe, color: 'dg-text-orange', desc: 'API Token/Key + 端点' },
-  generic:  { label: '通用凭证', icon: FileText, color: 'dg-text-secondary', desc: '自定义 Key/Value 键值对' },
+  ssh:      { label: i18n.t('system.sshKeyLabel'), icon: Server, color: 'dg-text-yellow', desc: i18n.t('pipeline.constantsts.sedc7f9e9') },
+  docker:   { label: i18n.t('system.dockerCredential'), icon: Container, color: 'dg-text-cyan', desc: i18n.t('pipeline.constantsts.sbd6cf171') },
+  tls:      { label: i18n.t('pipeline.constantsts.sfa5a64de'), icon: Shield, color: 'dg-text-green', desc: i18n.t('pipeline.constantsts.s43f00c61') },
+  aksk:     { label: i18n.t('pipeline.constantsts.sb82698a1'), icon: Cloud, color: 'dg-text-purple', desc: i18n.t('pipeline.constantsts.s564e98a9') },
+  database: { label: i18n.t('system.dbCredential'), icon: Database, color: 'dg-text-blue', desc: i18n.t('pipeline.constantsts.se47498d3') },
+  api:      { label: i18n.t('system.apiKeys'), icon: Globe, color: 'dg-text-orange', desc: i18n.t('pipeline.constantsts.sb3edf0a4') },
+  generic:  { label: i18n.t('pipeline.constantsts.s1d319bb7'), icon: FileText, color: 'dg-text-secondary', desc: i18n.t('pipeline.constantsts.s51b5b280') },
 };
 
 export const TYPE_BADGE_CLASS: Record<SecretType, string> = {