fix(reviews): use legacy reviewPoints for graphrag mode to prevent content null crash

- reviewPoints from unified API lacks 'content' field expected by ReviewPointsList
- Use reviewData.reviewPoints (from /api/v3/review-points) which has proper content structure
- Scored data still available via scoredResults prop

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/routes/reviews.tsx

@@ -233,7 +233,7 @@ export async function loader({ request }: LoaderFunctionArgs) {
       return Response.json({
         previousRoute: previousRoute,
         document: ('document' in reviewData && !('error' in reviewData)) ? reviewData.document : null,
-        reviewPoints: unifiedData.results,
+        reviewPoints: ('reviewPoints' in reviewData && !('error' in reviewData)) ? reviewData.reviewPoints : unifiedData.results,
         reviewInfo: { reviewTime: unifiedData.evaluated_at, reviewModel: 'GraphRAG', ruleGroup: '', result: '', issueCount: unifiedData.summary?.total_points || 0 },
         statistics: {
           total: unifiedData.summary?.total_points || 0,