Record Asset Impairment Before Markets Ignore It.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

interface IVesroImpairmentRegistry {
    enum ImpairmentClass { 
        PhysicalDamage, 
        ManufacturingRecall, 
        EconomicObsolescence, 
        LegalRestriction 
    }

    struct ImpairmentEvent {
        bytes32 assetId;
        ImpairmentClass category;
        uint16 haircutBps;          // e.g. 4200 = 42.00%
        uint16 adjustedLtvBps;      // e.g. 3200 = 32.00%
        uint64 timestamp;
        bytes32 evidenceRoot;
        bytes surveyorSignature;
    }

    /// @notice Queries active impairment status for a tokenized RWA
    function getImpairmentStatus(bytes32 assetId) 
        external 
        view 
        returns (bool isImpaired, ImpairmentEvent memory details);

    /// @notice DeFi hook: Validates collateral eligibility before borrowing
    function validateCollateralEligibility(
        address collateralToken, 
        uint256 requestedBorrowAmount
    ) external view returns (bool approved, uint256 maxBorrowAllowed);
}