feat: 应用内通知系统 + 结构化手术史/用药等相关改动

- 新增用户通知 outbox 流水线(EfUserNotificationPipeline)与后台投递 worker
- 通知中心页面及前端通知服务接入
- 健康指标异常、用药/运动提醒等事件统一产出站内通知
- 健康档案结构化手术史、用药提醒扫描、医生/用户端点等配套调整
- AppDbContext 注册通知相关实体

health_app/lib/pages/doctor/doctor_patient_detail_page.dart

@@ -121,7 +121,17 @@ class DoctorPatientDetailPage extends ConsumerWidget {
                 const SizedBox(height: 8),
                 if (archive['diagnosis'] != null)
                   _row('诊断', archive['diagnosis']),
-                if (archive['surgeryType'] != null)
+                if (archive['surgeries'] is List &&
+                    (archive['surgeries'] as List).isNotEmpty)
+                  _row(
+                    '手术史',
+                    (archive['surgeries'] as List).map((item) {
+                      final surgery = item as Map;
+                      final date = surgery['date']?.toString() ?? '';
+                      return '${surgery['type'] ?? ''}${date.isEmpty ? '' : ' $date'}';
+                    }).join('；'),
+                  )
+                else if (archive['surgeryType'] != null)
                   _row(
                     '手术史',
                     '${archive['surgeryType']} ${archive['surgeryDate'] ?? ''}',