chore: preserve frontend concept lab

frontend/src/components/app/AppRiskBadge.tsx

@@ -0,0 +1,14 @@
+import { Badge } from '@/components/ui/badge'
+import type { McpTool } from '@/features/prototype/types'
+
+const riskConfig = {
+  low: { label: '低风险', variant: 'success' },
+  medium: { label: '中风险', variant: 'warning' },
+  high: { label: '高风险', variant: 'danger' }
+} as const
+
+export function AppRiskBadge({ risk }: { risk: McpTool['risk_level'] }) {
+  const config = riskConfig[risk]
+
+  return <Badge variant={config.variant}>{config.label}</Badge>
+}