fix: smart CBT result/back routing for DPPs and add Test Type selector in Admin panel

src/app/cbt/[examId]/page.tsx

@@ -316,6 +316,7 @@ export default function CBTExamPage({ params }: { params: Promise<{ examId: stri
       <ExamResult 
         payload={payload} 
         attemptId={attemptId}
+        examType={examType}
         onRetake={examType === 'DPS' ? () => {
           resetExamState();
           window.location.reload();