refactor: fix BelongsToTenant trait to exempt candidates globally - removes all withoutGlobalScopes() workarounds

app/Http/Controllers/AttemptController.php

@@ -48,12 +48,8 @@ class AttemptController extends Controller
             abort(403);
         }
     }
-    public function show(int $quizId)
+    public function show(Quiz $quiz)
     {
-        // Bypass tenant global scope: candidates have no tenant_id
-        // but should still access their assigned quizzes
-        $quiz = Quiz::withoutGlobalScopes()->findOrFail($quizId);
-
         $candidate = auth()->user()->candidate;
 
         if (!$candidate) {
@@ -142,21 +138,12 @@ class AttemptController extends Controller
 
     private function recalculateScore(Attempt $attempt)
     {
-        // Bypass tenant scope: candidates have no tenant_id
-        $quiz = Quiz::withoutGlobalScopes()
-            ->with(['questions.options'])
-            ->find($attempt->quiz_id);
-
-        $attempt->load(['answers.option']);
+        $attempt->load(['quiz.questions.options', 'answers.option']);
         
         $score = 0;
         $maxScore = 0;
 
-        if (!$quiz) {
-            return;
-        }
-
-        foreach ($quiz->questions as $question) {
+        foreach ($attempt->quiz->questions as $question) {
             $maxScore += $question->points;
             $userAnswer = $attempt->answers->where('question_id', $question->id)->first();