feat: 全站 PageShell 设计系统与专业 UI 统一

- 新增 PageShell/PageTabs/ContentPanel/PageLoading/PageEmpty 页面骨架
- index.css 设计令牌文档化，布局令牌与纯色主按钮（去除渐变粉彩）
- 全站路由页接入 PageShell，云账单三 Tab 为标杆
- 主题体系：跟随系统 + 主流/开发者分组，新增 Dracula/Tokyo Night，One Dark 暖灰差异化
- 登录页/侧栏/顶栏去渐变光球，企业克制风
- 修复 AIAlertAnalyzer JSX 与构建依赖导入问题

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

@@ -6,21 +6,21 @@ import {
 import type { SecretType } from './types';
 
 export const TYPE_CONFIG: Record<SecretType, { label: string; icon: typeof Key; color: string; desc: string }> = {
-  ssh:      { label: 'SSH 密钥', icon: Server, color: 'text-amber-400', desc: 'SSH 私钥/公钥/密码' },
-  docker:   { label: 'Docker 凭证', icon: Container, color: 'text-cyan-400', desc: 'Docker Registry 登录凭据' },
-  tls:      { label: 'TLS 证书', icon: Shield, color: 'text-green-400', desc: 'TLS/SSL 证书与私钥' },
-  aksk:     { label: 'AKSK 密钥', icon: Cloud, color: 'text-purple-400', desc: '云服务 AccessKey/SecretKey' },
-  database: { label: '数据库凭证', icon: Database, color: 'text-blue-400', desc: '数据库连接信息' },
-  api:      { label: 'API 密钥', icon: Globe, color: 'text-orange-400', desc: 'API Token/Key + 端点' },
-  generic:  { label: '通用凭证', icon: FileText, color: 'text-gray-400', desc: '自定义 Key/Value 键值对' },
+  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' },
 };
 
 export const TYPE_BADGE_CLASS: Record<SecretType, string> = {
-  ssh: 'bg-amber-500/20 text-amber-400 border-amber-500/30',
-  docker: 'bg-cyan-500/20 text-cyan-400 border-cyan-500/30',
-  tls: 'bg-green-500/20 text-green-400 border-green-500/30',
-  aksk: 'bg-purple-500/20 text-purple-400 border-purple-500/30',
-  database: 'bg-blue-500/20 text-blue-400 border-blue-500/30',
-  api: 'bg-orange-500/20 text-orange-400 border-orange-500/30',
-  generic: 'bg-gray-500/20 text-gray-400 border-gray-500/30',
+  ssh: 'bg-amber-500/20 dg-text-yellow border-amber-500/30',
+  docker: 'bg-cyan-500/20 dg-text-cyan border-cyan-500/30',
+  tls: 'bg-green-500/20 dg-text-green border-green-500/30',
+  aksk: 'bg-purple-500/20 dg-text-purple border-purple-500/30',
+  database: 'bg-blue-500/20 dg-text-blue border-blue-500/30',
+  api: 'bg-orange-500/20 dg-text-orange border-orange-500/30',
+  generic: 'dg-badge-muted',
 };