feat: 实现用户画像、占卜历史与后端用户管理模块

backend/src/models/auth_user.py

@@ -0,0 +1,21 @@
+from __future__ import annotations
+
+import uuid
+from datetime import datetime
+
+from sqlalchemy import DateTime, Text
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import Mapped, mapped_column
+
+from core.db.base import Base
+
+
+class AuthUser(Base):
+    __tablename__ = "users"
+    __table_args__ = {"schema": "auth"}
+
+    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True)
+    email: Mapped[str | None] = mapped_column(Text, nullable=True)
+    created_at: Mapped[datetime | None] = mapped_column(
+        DateTime(timezone=True), nullable=True
+    )