sync snapshot from LAN repo (source codex/kb-context-retrieval-20261021 @ b69568e4)

frontend-web/src/core/admin/hooks.ts

@@ -7,6 +7,7 @@ import {
   deleteAdminV1Fact,
   generateUserLeaderboardReport,
   getUserMemory,
+  getUserAnalytics,
   getUserLeaderboard,
   refreshTodayLeaderboard,
   listUserQa,
@@ -161,6 +162,18 @@ export function useRefreshTodayLeaderboard() {
   });
 }
 
+export function useUserAnalytics(
+  userId: string | null,
+  range: { since: string; until: string; days?: number },
+  limit = 20,
+) {
+  return useQuery({
+    queryKey: ["admin-activity", "analytics", userId, range.since, range.until, limit],
+    queryFn: () => getUserAnalytics(userId!, range, limit),
+    enabled: !!userId,
+  });
+}
+
 export function useGenerateUserLeaderboardReport() {
   return useMutation({
     mutationFn: ({