fix: 考试bundle错误提示区分未上架

jituan/services/dashou_exam.py

@@ -210,7 +210,10 @@ def build_exam_bundle(request, user):
     all_ids = list(qs.values_list('id', flat=True))
     draw = min(int(cfg.draw_count or 10), len(all_ids))
     if draw < 1:
-        return None, '题库暂无可用题目，请联系管理员'
+        total = ClubDashouExamQuestion.query.filter(club_id=club_id).count()
+        if total > 0 and not all_ids:
+            return None, '题库有题目但未上架，请在后台打开题目的「上架」开关'
+        return None, '题库暂无已上架题目，请至少录入一道题并上架（每题至少两个选项且标记正确答案）'
 
     selected_ids = random.sample(all_ids, draw)
     questions = []