feat(admin): 官网落地页融进 admin —— / 是官网、/admin 是运维后台

用户要 agent.sundynix.cn/ 打开是营销官网、/admin 是后台,且只用一个前端。
把 sundynix-site/web 的营销落地页融进 sundynix-admin 这一个 Vite 工程(不挂两份 embed):

- 拷官网到 src/site/:home(hero/功能/架构/快速上手/下载)+layout(header/footer)
  +terminal-demo/logo/reveal 等 + content/site.ts(文案本就是本产品)。去掉博客/posts/埋点/RSS
  (营销 only,零后端改动);use-release 改纯静态版本号。public/ 加 brand logo+favicon。
- Tailwind v4→v3 对齐:site 的 ink/ground/accent/term 等 token 加进 tailwind.config(var 引用)
  + :root/.dark 变量+keyframes 进 index.css;bg-ground/85 用 color-mix 还原。admin 自身用默认
  gray/violet 调色板,不冲突;landing 的 bg-ground 只作用在 SiteLayout 容器、不改 body。
- 路由重构:App.tsx 换 BrowserRouter —— / 官网(公开)、/admin/* 后台(AdminGate 内做 me/Login/AppShell)。
  routes.tsx path 改相对、AppShell 链接加 /admin 前缀。@ 别名指向 src/site。
- gateway/Dockerfile/nginx 零改动:单份 dist 挂根 + NoRoute SPA 兜底已支持 BrowserRouter 深链。

验证:tsc + vite build(Tailwind 编译过)+ vitest 41 过;gateway 二进制冒烟打真 serve——
/ 返回官网 index.html、/admin 与 /admin/tasks SPA 兜底 200、/brand/*.webp 200、/api/v1 走 API 401;
dist 里确认落地页文案已进 bundle。(注:MCP 浏览器当前断开,视觉渲染待部署后线上看。)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

sundynix-admin/src/routes.tsx

@@ -27,84 +27,84 @@ export interface RouteDef {
 
 export const routes: RouteDef[] = [
   {
-    path: "/dashboard",
+    path: "dashboard",
     label: "概览",
     group: "分析",
     ready: true,
     element: <DashboardPage />,
   },
   {
-    path: "/usage",
+    path: "usage",
     label: "计费 & 用量",
     group: "分析",
     ready: true,
     element: <UsagePage />,
   },
   {
-    path: "/models",
+    path: "models",
     label: "模型",
     group: "配置",
     ready: true,
     element: <ModelsPage />,
   },
   {
-    path: "/datasources",
+    path: "datasources",
     label: "数据源 & RAG",
     group: "配置",
     ready: true,
     element: <DatasourcesPage />,
   },
   {
-    path: "/prompts",
+    path: "prompts",
     label: "提示词",
     group: "配置",
     ready: true,
     element: <PromptsPage />,
   },
   {
-    path: "/status",
+    path: "status",
     label: "服务状态",
     group: "运维",
     ready: true,
     element: <StatusPage />,
   },
   {
-    path: "/tasks",
+    path: "tasks",
     label: "任务观测",
     group: "运维",
     ready: true,
     element: <TasksPage />,
   },
   {
-    path: "/evals",
+    path: "evals",
     label: "自动评测",
     group: "运维",
     ready: true,
     element: <EvalsPage />,
   },
   {
-    path: "/audit",
+    path: "audit",
     label: "审计 & 安全",
     group: "运维",
     ready: true,
     element: <AuditPage />,
   },
   {
-    path: "/tenants",
+    path: "tenants",
     label: "租户 & 用户",
     group: "平台",
     ready: true,
     element: <TenantsPage />,
   },
   {
-    path: "/spaces",
+    path: "spaces",
     label: "空间",
     group: "平台",
     ready: true,
     element: <SpacesPage />,
   },
   {
-    path: "/guardrails",
+    path: "guardrails",
     label: "安全护栏",
     group: "平台",
     ready: true,
@@ -112,7 +112,7 @@ export const routes: RouteDef[] = [
   },
 ];
 
-export const defaultPath = "/dashboard";
+export const defaultPath = "dashboard";
 
 // 派生分组导航（保持注册顺序）。
 export function navGroups(): Array<{ group: string; items: RouteDef[] }> {