feat: implement axios client with interceptors, dashboard caching, and core application modules

src/pages/dashboard/Dashboard.tsx

@@ -34,6 +34,7 @@ export const Dashboard: React.FC = () => {
       batchAudited: 0,
       batchPending: 0,
       batchAnomaliesFound: 0,
+      firstPendingIndex: -1,
     }
   );
   // Only show loading spinner if there's no cached result for these filters
@@ -106,7 +107,6 @@ export const Dashboard: React.FC = () => {
     fetchStats();
   }, [currentFilterKey]); // eslint-disable-line react-hooks/exhaustive-deps
 
-  const progressPercent = stats.batchTotal > 0 ? Math.round((stats.batchAudited / stats.batchTotal) * 100) : 0;
 
   return (
     <Box sx={{ width: '100%', maxWidth: '100vw', display: 'flex', flexDirection: 'column' }}>