"""
数据库模型 - 仅管理员
"""
from sqlalchemy import Column, Integer, String, DateTime
from datetime import datetime
from database import Base


class Admin(Base):
    """管理员账号"""
    __tablename__ = "admins"

    id = Column(Integer, primary_key=True, index=True)
    username = Column(String, unique=True, index=True, default="admin")
    password_hash = Column(String)
    created_at = Column(DateTime, default=datetime.utcnow)