feat: add stage 0 foundation

frontend/src/components/app/AppStatusBadge.tsx

@@ -0,0 +1,15 @@
+import { Badge } from '@/components/ui/badge'
+
+const STATUS_LABELS: Record<string, string> = {
+  pending_info: '待补充',
+  pending: '待处理',
+  in_progress: '处理中',
+  pending_confirm: '待确认',
+  resolved: '已解决',
+  closed: '已关闭'
+}
+
+export function AppStatusBadge({ status }: { status: string }) {
+  const variant = status === 'resolved' || status === 'closed' ? 'success' : 'info'
+  return <Badge variant={variant}>{STATUS_LABELS[status] ?? status}</Badge>
+}