维保计划新增确认维保计划和标记已完成按钮，处理自动生成维保计划的方法报错的bug

sf_maintenance/models/sf_maintenance.py

@@ -421,7 +421,7 @@ class SfMaintenanceEquipment(models.Model):
             'owner_user_id': self.owner_user_id.id,
             'user_id': self.technician_user_id.id,
             'maintenance_team_id': self.maintenance_team_id.id,
-            'duration': self.maintenance_duration,
+            'duration': self.overhaul_duration,
             'company_id': self.company_id.id or self.env.company.id,
             'equipment_maintenance_id': self.overhaul_id.id,
             'sf_maintenance_type': '检修'