P2全部完成: 尝试限制/预约时段/题目回顾/随机排序

后端:
- assessment-template entity: attemptLimit/scheduledStart/End/reviewMode/shuffleQuestions
- DTO 更新: 新增 P2 字段验证
- startSession: 尝试次数检查、预约时段检查、题目随机排序
- getSessionState: reviewMode 控制答案可见性
- 新增 GET /assessment/:id/review 回顾端点

前端:
- AssessmentTemplateManager: 新增尝试次数/答题回顾/题目排序/预约时段配置
- AssessmentView: 答题回顾按钮(完成页)+提交确认弹窗+标记回头功能
- types.ts: 新增 P2 字段类型
- assessmentService: 新增 getReview 方法
- 进度导航点: 可视化题序+标记状态

测试 20项全部通过 + 系统测试 142项全部通过 ✅

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

web/services/assessmentService.ts

@@ -147,6 +147,12 @@ export class AssessmentService {
         return data;
     }
 
+    /** P2: Get assessment review data (correct answers) */
+    async getReview(sessionId: string): Promise<any> {
+        const { data } = await apiClient.get<any>(`/assessment/${sessionId}/review`);
+        return data;
+    }
+
     async nextQuestion(sessionId: string): Promise<{ success: boolean }> {
         const { data } = await apiClient.post<{ success: boolean }>(`/assessment/${sessionId}/next-question`, {});
         return data;