update

backend/models.py

@@ -3,7 +3,7 @@ from __future__ import annotations
 import uuid
 from datetime import datetime, timezone
 
-from sqlalchemy import Boolean, DateTime, String
+from sqlalchemy import Boolean, DateTime, ForeignKey, String, Text
 from sqlalchemy.dialects.postgresql import UUID
 from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column
 
@@ -27,3 +27,19 @@ class User(Base):
     is_admin: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
     created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_now, nullable=False)
 
+
+class UserChatMessage(Base):
+    """История чата с ИИ (Ollama) по пользователю."""
+
+    __tablename__ = "user_chat_messages"
+
+    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    user_id: Mapped[uuid.UUID] = mapped_column(
+        ForeignKey("users.id", ondelete="CASCADE"),
+        index=True,
+        nullable=False,
+    )
+    role: Mapped[str] = mapped_column(String(32), nullable=False)
+    content: Mapped[str] = mapped_column(Text, nullable=False)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_now, nullable=False)
+