feat(financials-v2): add financial statements endpoint and query plumbing

hooks/use-link-prefetch.ts

@@ -6,6 +6,7 @@ import { useCallback } from 'react';
 import {
   aiReportQueryOptions,
   companyAnalysisQueryOptions,
+  companyFinancialStatementsQueryOptions,
   filingsQueryOptions,
   holdingsQueryOptions,
   latestPortfolioInsightQueryOptions,
@@ -37,6 +38,13 @@ export function useLinkPrefetch() {
     router.prefetch(financialsHref);
 
     void queryClient.prefetchQuery(companyAnalysisQueryOptions(normalizedTicker));
+    void queryClient.prefetchQuery(companyFinancialStatementsQueryOptions({
+      ticker: normalizedTicker,
+      mode: 'standardized',
+      statement: 'income',
+      window: '10y',
+      includeDimensions: false
+    }));
     void queryClient.prefetchQuery(filingsQueryOptions({ ticker: normalizedTicker, limit: 120 }));
   }, [queryClient, router]);