feat: 初始提交

backend/app/models/user.py

@@ -0,0 +1,31 @@
+from datetime import datetime
+from typing import Optional
+
+from sqlalchemy import Boolean, DateTime, ForeignKey, Integer, String, func
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from ..db.base import Base
+
+
+class User(Base):
+    """用户主表，记录账号及权限信息。"""
+
+    __tablename__ = "users"
+
+    id: Mapped[int] = mapped_column(Integer, primary_key=True, index=True)
+    username: Mapped[str] = mapped_column(String(64), unique=True, nullable=False, index=True)
+    email: Mapped[Optional[str]] = mapped_column(String(128), unique=True)
+    hashed_password: Mapped[str] = mapped_column(String(255), nullable=False)
+    external_id: Mapped[Optional[str]] = mapped_column(String(255), unique=True)
+    is_admin: Mapped[bool] = mapped_column(Boolean, default=False)
+    is_active: Mapped[bool] = mapped_column(Boolean, default=True)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True),
+        server_default=func.now(),
+        onupdate=func.now(),
+    )
+
+    # 关系映射
+    novel_projects: Mapped[list["NovelProject"]] = relationship("NovelProject", back_populates="owner")
+    llm_config: Mapped[Optional["LLMConfig"]] = relationship("LLMConfig", back_populates="user", uselist=False)