Interface Attestation

interface Attestation {
    agentId: string;
    attestationId: string;
    contextEnvelope: ContextEnvelope | null;
    delegationDepth: number;
    effectiveTrust: number;
    evidenceChainHash: string | null;
    outputContract: OutputContract | null;
    outputHash: string;
    provenanceMetadata: ProvenanceMetadata | null;
    shieldSummary: { failed: number; passed: number; totalPacks: number };
    signature: string;
    timestamp: number;
    trustLevel: number;
}