"""一轮 AI 对话输出:分段文案 + 是否整轮跳过 TTS(如失败兜底)。"""
from __future__ import annotations
from dataclasses import dataclass
from typing import Any, List
@dataclass(frozen=True)
class AgentChatTurn:
"""与 WebSocket pipeline 对齐:messages 为气泡分段;skip_tts 为 True 时不合成语音。"""
messages: List[str]
skip_tts: bool = False
memory_retrieval_trace: dict[str, Any] | None = None