feat: [AA-1087] add flag for enabled proctored exams (#29201)

* feat: [AA-1087] add flag for enabled proctored exams

Add flag to enable frontend to optimize outline tab widget rendering without
having to wait for the proctoring API call to return.

lms/djangoapps/course_home_api/outline/serializers.py

@@ -123,6 +123,7 @@ class OutlineTabSerializer(DatesBannerSerializer, VerifiedModeSerializer):
     dates_widget = DatesWidgetSerializer()
     enroll_alert = EnrollAlertSerializer()
     enrollment_mode = serializers.CharField()
+    enable_proctored_exams = serializers.BooleanField()
     handouts_html = serializers.CharField()
     has_ended = serializers.BooleanField()
     offer = serializers.DictField()

lms/djangoapps/course_home_api/outline/views.py

@@ -238,6 +238,7 @@ class OutlineTabView(RetrieveAPIView):
         is_enrolled = enrollment and enrollment.is_active
         is_staff = bool(has_access(request.user, 'staff', course_key))
         show_enrolled = is_enrolled or is_staff
+        enable_proctored_exams = False
         if show_enrolled:
             course_blocks = get_course_outline_block_tree(request, course_key_string, request.user)
             date_blocks = get_course_date_blocks(course, request.user, request, num_assignments=1)
@@ -250,6 +251,8 @@ class OutlineTabView(RetrieveAPIView):
             access_expiration = get_access_expiration_data(request.user, course_overview)
             cert_data = get_cert_data(request.user, course, enrollment.mode) if is_enrolled else None
 
+            enable_proctored_exams = course_overview.enable_proctored_exams
+
             if COURSE_GOALS_NUMBER_OF_DAYS_GOALS.is_enabled():
                 if (is_enrolled and ENABLE_COURSE_GOALS.is_enabled(course_key)):
 
@@ -350,6 +353,7 @@ class OutlineTabView(RetrieveAPIView):
             'course_goals': course_goals,
             'course_tools': course_tools,
             'dates_widget': dates_widget,
+            'enable_proctored_exams': enable_proctored_exams,
             'enroll_alert': enroll_alert,
             'enrollment_mode': enrollment_mode,
             'handouts_html': handouts_html,