第一次提交

app/models/user.py

@@ -0,0 +1,38 @@
+"""用户与用户 AI 配置。"""
+
+from sqlalchemy import Boolean, ForeignKey, String, Text
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.models.base import new_uuid
+from app.db import Base, TimestampMixin
+
+
+class User(Base, TimestampMixin):
+    __tablename__ = "users"
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    username: Mapped[str] = mapped_column(String(64), unique=True, index=True)
+    email: Mapped[str | None] = mapped_column(String(255), unique=True, nullable=True)
+    password_hash: Mapped[str] = mapped_column(String(255))
+    is_active: Mapped[bool] = mapped_column(Boolean, default=True)
+
+    settings: Mapped["UserSettings"] = relationship(
+        back_populates="user", uselist=False, cascade="all, delete-orphan"
+    )
+
+
+class UserSettings(Base, TimestampMixin):
+    """每个用户可在 UI 里配置自己的 OpenAI 兼容 AI 接口。api_key 用 Fernet 加密存储。"""
+
+    __tablename__ = "user_settings"
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    user_id: Mapped[str] = mapped_column(
+        ForeignKey("users.id", ondelete="CASCADE"), unique=True, index=True
+    )
+    llm_base_url: Mapped[str | None] = mapped_column(String(512), nullable=True)
+    llm_api_key_encrypted: Mapped[str | None] = mapped_column(Text, nullable=True)
+    llm_text_model: Mapped[str | None] = mapped_column(String(128), nullable=True)
+    llm_vision_model: Mapped[str | None] = mapped_column(String(128), nullable=True)
+
+    user: Mapped["User"] = relationship(back_populates="settings")