{"user_name": "User", "character_name": "测试角色2", "create_date": "2026-04-30T16:00:00Z"}
{"name": "测试角色2", "is_user": false, "send_date": "2026-04-30T16:00:01Z", "mes": "您好，我是测试角色2，请问有什么工作需要处理？"}
{"name": "User", "is_user": true, "send_date": "2026-04-30T16:00:10Z", "mes": "帮我分析一下这个数据"}
{"name": "测试角色2", "is_user": false, "send_date": "2026-04-30T16:00:20Z", "mes": "好的，请提供数据，我会进行专业分析。"}