// ACC-Reserve: 多资产储备协议
// NAC 原生协议 - Charter 语言定义
// UID: nac.acc.ACCReserveProtocol.v1

protocol ACCReserveProtocol {
    // 存入储备资产
    fn deposit(
        asset_symbol: String, amount: u128, custodian: Address,
        constitutional_receipt: Hash
    ) -> Result<(), Error>;
    // 提取储备资产（需要宪法收据）
    fn withdraw(
        asset_symbol: String, amount: u128, recipient: Address,
        constitutional_receipt: Hash
    ) -> Result<(), Error>;
    // 审计储备（记录审计哈希）
    fn audit(asset_symbol: String, audit_hash: Hash) -> Result<(), Error>;
    // 查询储备余额
    fn get_reserve(asset_symbol: String) -> Option<ReserveEntry>;
    // 查询储备资产总数
    fn total_reserve_count() -> u64;
}