feat(FN-4854): complete Step 1 — extend cache keys and diagnostics

Fusion-Task-Id: FN-4854
Fusion-Task-Lineage: 969ec04a-efe3-4dee-b183-2d4f2de6b388

packages/dashboard/app/hooks/useProjects.ts

@@ -81,6 +81,9 @@ export function useProjects(): UseProjectsResult {
     if (!Array.isArray(cached)) {
       return [];
     }
+    if (cached.length > 0) {
+      console.info("[swr-cache] hit projects=", cached.length);
+    }
     return normalizeProjects(cached);
   });
   const [loading, setLoading] = useState(() => projects.length === 0);