Function verifyTransformAttestation

Returns {
    attestation:
        | {
            attestationId: string;
            createdByUser: string;
            createdTs: number;
            evidenceLinks: string[];
            hashes: { relatedFiles: { path: string; sha256: string }[] };
            role: "OWNER" | "AUDITOR";
            scope: { agentId?: string; nodeId?: string; type: "AGENT" | "NODE" };
            statement: string;
            taskId: string;
            v: 1;
        }
        | null;
    path: string;
    reason: string
    | null;
    signatureExists: boolean;
    sigPath: string;
    valid: boolean;
}