"""系统配置模型：key-value（JSON 值），用于后台管理平台控制前端细节。"""
from sqlalchemy import String, Text
from sqlalchemy.orm import Mapped, mapped_column

from ..database import Base


class AppConfig(Base):
    __tablename__ = "app_config"

    key: Mapped[str] = mapped_column(String(64), primary_key=True)
    value: Mapped[str] = mapped_column(Text, default="{}")