feat: 添加复查功能和批量审核操作

- 复查功能: PUT /assessment/:id/review
  * 支持调整最终总分
  * 记录复查历史(reviewHistory)
  * 保存原始分数(originalScore)
  * 保留复查人、复查时间、复查意见

- 批量审核: POST /question-banks/:bankId/items/batch-review
  * 支持批量通过/拒绝题目
  * 可添加审核意见

- AssessmentSession实体: 添加复查相关字段

web/src/services/assessmentStatsService.ts

@@ -37,6 +37,16 @@ export class AssessmentStatsService {
     const { data } = await apiClient.get<AssessmentStats>(url);
     return data;
   }
+
+  async reviewAssessment(sessionId: string, newScore: number, comment?: string): Promise<any> {
+    const response = await apiClient.request(`/assessment/${sessionId}/review`, {
+      method: 'PUT',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ newScore, comment }),
+    });
+    if (!response.ok) throw new Error('Failed to review assessment');
+    return await response.json();
+  }
 }
 
 export const assessmentStatsService = new AssessmentStatsService();