fix: 整合验证修复9个代码缺口 - 历史限制3条、证书公开端点、题库默认DRAFT状态、Admin硬编码

server/src/assessment/assessment.service.ts

@@ -1578,7 +1578,7 @@ const initialState: Partial<EvaluationState> = {
     const sessions = await this.sessionRepository.find({
       where: { userId, status: AssessmentStatus.COMPLETED },
       order: { createdAt: 'DESC' },
-      take: 100,
+      take: 3,
       relations: ['template'],
     });
     return sessions;