StargateBridgeAdapterStorage

struct StargateBridgeAdapterStorage {
    /// @notice EVM chainId => LayerZero eid (0 = unset). Admin-registered identity, never inferred. APPEND-ONLY.
    mapping(uint256 chainId => uint32 eid) _chainIdToEid;
    /// @notice LayerZero eid => EVM chainId (0 = unset). Admin-registered identity, never inferred. APPEND-ONLY.
    mapping(uint32 eid => uint256 chainId) _eidToChainId;
    /// @notice ERC-20 token => its LOCAL Stargate pool (0 = unset). Identity — register once, `pool.token()`
    ///         cross-checked fail-closed at registration; ERC-20 pools ONLY in v1. APPEND-ONLY.
    mapping(address token => address pool) _pools;
}