feat(analytics): replace health score with reference composite

src/hooks/_internal/use-query-client-safe.ts

@@ -1,16 +1,15 @@
 "use client";
 
 import { useContext } from "react";
-import { QueryClientContext } from "@tanstack/react-query";
+import { QueryClientContext, type QueryClient } from "@tanstack/react-query";
 
 /**
  * v1.4.48 M4 — shared SSR-safety helper for hooks that delegate to
  * React Query under a `<QueryClientProvider>`.
  *
- * A long tail of legacy presentational components (`<HeroStrip>`,
- * `<SuggestedPrompts>`, `<LayoutCoachFab>`, `<InsightStatusCard>`,
- * `<HealthScoreDeltaExplainer>`, …) ships with unit tests that render
- * the component in isolation without wrapping it in
+ * Several presentational components (`<HeroStrip>`, `<SuggestedPrompts>`,
+ * `<LayoutCoachFab>`, and `<InsightStatusCard>`) ship with unit tests that
+ * render the component in isolation without wrapping it in
  * `<QueryClientProvider>`. Hooks that call `useQuery` directly crash
  * in that environment.
  *
@@ -31,3 +30,8 @@ export function useQueryClientMounted(): boolean {
   );
   return ctx != null;
 }
+
+/** Return the mounted client without throwing in isolated SSR renders. */
+export function useOptionalQueryClient(): QueryClient | undefined {
+  return useContext(QueryClientContext);
+}

src/hooks/use-feature-flags.ts

@@ -70,9 +70,8 @@ async function fetchFeatureFlags(): Promise<FeatureFlagsPayload> {
  * remount within a minute. The hook fails open — any network error
  * returns the all-on default so the user keeps seeing the surface.
  *
- * The hook is referenced from a long tail of legacy presentational
- * components (`<InsightStatusCard>`, `<HealthScoreDeltaExplainer>`)
- * whose unit tests render the component without a
+ * The hook is referenced from presentational components such as
+ * `<InsightStatusCard>` whose unit tests render without a
  * `<QueryClientProvider>`. To keep those tests valid we delegate
  * the React-Query call to a child hook that's only invoked when a
  * client is mounted. The branch is stable across the component's