fix(U20): ESLint static-components 清零 + CredDetailDialog 内联组件修复 + i18n 损坏修复

- CredDetailDialog.tsx: Field 内联组件提取为模块级 CredField (react-hooks/static-components 23→0)
- 修复 8 处被批量正则损坏的 i18n.t() 调用 (i18n.t('>名称：</span>') → 语义化键)
- 6 处硬编码中文清零 (凭据详情/密钥数据/无/创建时间/更新时间/安全提示)
- 新增 deploy.cred.sensitiveWarn i18n 键 (zh/en 对齐)
- ESLint warnings 66→43 (-35%), errors=0, any=0, unused=0
- tsc -b=0, npm build✓ (17.29s), go build=0, 17/17 测试通过

frontend/src/locales/zh-CN.json

@@ -1736,7 +1736,8 @@
         "created": "已创建",
         "operationFailed": "操作失败",
         "tagsLabel": "标签"
-      }
+      },
+      "sensitiveWarn": "敏感信息请妥善保管"
     },
     "release": {
       "title": "应用发布",