Add attention inbox and AI usage observability

apps/dashboard/src/features/performance/performance-queries.ts

@@ -7,6 +7,7 @@ export const performanceQueryKeys = {
   trend: (days: number) => ['performance', 'trend', days] as const,
   successfulExamples: ['performance', 'successful-examples'] as const,
   funnel: ['performance', 'funnel'] as const,
+  aiUsage: (days: number) => ['performance', 'ai-usage', days] as const,
 };
 
 export function useSubredditPerformanceQuery() {
@@ -43,3 +44,10 @@ export function useFunnelQuery() {
     queryFn: performanceApi.getFunnel,
   });
 }
+
+export function useAiUsageQuery(days: number) {
+  return useQuery({
+    queryKey: performanceQueryKeys.aiUsage(days),
+    queryFn: () => performanceApi.getAiUsage(days),
+  });
+}