feat:客户agent以及记忆模块功能开发

model/conversation_archive.py

@@ -0,0 +1,40 @@
+"""conversation_archive 会话归档表 ORM 模型。"""
+
+from __future__ import annotations
+
+from datetime import datetime
+from typing import Any
+
+from sqlalchemy import BigInteger, DateTime, Index, JSON, String, Text, UniqueConstraint, func
+from sqlalchemy.orm import Mapped, mapped_column
+
+from model.base import Base
+
+
+class ConversationArchive(Base):
+    """客服会话消息归档记录。"""
+
+    __tablename__ = "conversation_archive"
+    __table_args__ = (
+        UniqueConstraint("session_id", "message_id", name="uk_session_message"),
+        Index("idx_session", "session_id"),
+        Index("idx_user_time", "user_id", "create_time"),
+        Index("idx_agent", "agent_type"),
+        Index("idx_agent_run", "agent_run_id"),
+        {"comment": "会话归档表（审计回溯 + Agent 持续学习素材）"},
+    )
+
+    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    session_id: Mapped[str] = mapped_column(String(64), nullable=False)
+    customer_id: Mapped[int | None] = mapped_column(BigInteger, nullable=True)
+    user_id: Mapped[int] = mapped_column(BigInteger, nullable=False)
+    agent_type: Mapped[str] = mapped_column(String(32), nullable=False)
+    role: Mapped[str] = mapped_column(String(16), nullable=False)
+    content: Mapped[str | None] = mapped_column(Text, nullable=True)
+    tool_calls: Mapped[list[dict[str, Any]] | None] = mapped_column(JSON, nullable=True)
+    message_id: Mapped[str] = mapped_column(String(64), nullable=False)
+    agent_run_id: Mapped[str | None] = mapped_column(String(64), nullable=True)
+    trace_id: Mapped[str | None] = mapped_column(String(64), nullable=True)
+    create_time: Mapped[datetime] = mapped_column(
+        DateTime, server_default=func.now(), nullable=False
+    )