#978 safe-align: 固化 frontend-v2 空白页修复真相源

- 新增 frontend-v2/ 为生产前端真相源（此前仅容器 dist，未入 git）
- vite.config.ts: minify:false 根治压缩器压坏 react-router 6.28 (o.slice)
- useApi.ts: asArray select 防御非裸数组返回值
- LandingPage/AppServices: Array.isArray coerce 双重防御 (apps.slice)
- 关联: INCIDENT-2026-08-23-blank-page.md / SOP-FRONTEND-ITERATIVE-DEVELOPMENT.md
- 公网验证通过 2026-08-23 09:31 (DOM 24493B, 无 slice 错误)

frontend-v2/src/components/ui/tabs.tsx

@@ -0,0 +1,43 @@
+import * as React from 'react';
+import * as TabsPrimitive from '@radix-ui/react-tabs';
+import { cn } from '@/lib/utils';
+
+const Tabs = TabsPrimitive.Root;
+
+const TabsList = React.forwardRef<React.ComponentRef<typeof TabsPrimitive.List>, React.ComponentPropsWithoutRef<typeof TabsPrimitive.List>>(
+  ({ className, ...props }, ref) => (
+    <TabsPrimitive.List
+      ref={ref}
+      className={cn('inline-flex h-10 items-center justify-center rounded-md bg-muted p-1 text-muted-foreground', className)}
+      {...props}
+    />
+  )
+);
+TabsList.displayName = TabsPrimitive.List.displayName;
+
+const TabsTrigger = React.forwardRef<React.ComponentRef<typeof TabsPrimitive.Trigger>, React.ComponentPropsWithoutRef<typeof TabsPrimitive.Trigger>>(
+  ({ className, ...props }, ref) => (
+    <TabsPrimitive.Trigger
+      ref={ref}
+      className={cn(
+        'inline-flex items-center justify-center whitespace-nowrap rounded-md px-3 py-1.5 text-sm font-medium ring-offset-background transition-all focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50 data-[state=active]:bg-background data-[state=active]:text-foreground data-[state=active]:shadow-sm',
+        className
+      )}
+      {...props}
+    />
+  )
+);
+TabsTrigger.displayName = TabsPrimitive.Trigger.displayName;
+
+const TabsContent = React.forwardRef<React.ComponentRef<typeof TabsPrimitive.Content>, React.ComponentPropsWithoutRef<typeof TabsPrimitive.Content>>(
+  ({ className, ...props }, ref) => (
+    <TabsPrimitive.Content
+      ref={ref}
+      className={cn('mt-2 ring-offset-background focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2', className)}
+      {...props}
+    />
+  )
+);
+TabsContent.displayName = TabsPrimitive.Content.displayName;
+
+export { Tabs, TabsList, TabsTrigger, TabsContent };