Results page : UI and graphs update

src/app/(test)/student-results/page.tsx

@@ -12,6 +12,7 @@ import {
   TestSummary,
 } from "@/components/results";
 import { MockResultsAPI } from "@/lib/results-api";
+import { StudentPerformanceTrendsChart } from "@/components/results/student/performance-trends-chart";
 
 export default function StudentResultsPage() {
   const router = useRouter();
@@ -170,7 +171,10 @@ export default function StudentResultsPage() {
               <p className="text-muted-foreground mb-4">
                 Track your academic performance and progress
               </p>
-              {/* Overview cards removed as requested */}
+            </div>
+            {/* Performance Trends Chart */}
+            <div className="mb-8">
+              <StudentPerformanceTrendsChart courses={courseResults} />
             </div>
             {/* Recent Tests */}
             <div>