// ACC-XTZH: XTZH 稳定币协议（SDR锚定+黄金储备）
// NAC 原生协议 - Charter 语言定义
// UID: nac.acc.XTZHStablecoinProtocol.v1

protocol XTZHStablecoinProtocol {
    // 铸造 XTZH（需要满足黄金储备率）
    fn mint(recipient: Address, amount: u128, constitutional_receipt: Hash) -> Result<(), Error>;
    // 销毁 XTZH
    fn burn(holder: Address, amount: u128, constitutional_receipt: Hash) -> Result<(), Error>;
    // 转移 XTZH
    fn transfer(from: Address, to: Address, amount: u128) -> Result<(), Error>;
    // 更新 SDR 汇率（允许偏差范围内）
    fn update_sdr_rate(new_rate: u128, constitutional_receipt: Hash) -> Result<(), Error>;
    // 更新储备资产
    fn update_reserve(asset_type: ReserveAssetType, amount: u128, weight_bps: u16) -> ();
    // 查询持仓
    fn balance_of(address: Address) -> u128;
    // 查询总供应量
    fn total_supply() -> u128;
}