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/**
 * Attribute catalogue and attribute-level modeling.
 *
 * <p>
 * This package defines a typed attribute system used across the PKI API and
 * independent of any specific credential framework. Attributes are described
 * through definitions and metadata and carried in structured containers to
 * support safe reuse and deterministic mapping into concrete frameworks (e.g.,
 * via a framework attribute mapper SPI).
 * </p>
 *
 * <h2>Typical responsibilities</h2>
 * <ul>
 * <li>Define attribute identity and value types.</li>
 * <li>Provide metadata needed for validation and governance (stability,
 * sensitivity, etc.).</li>
 * <li>Support export/import targets without binding to a certificate
 * format.</li>
 * </ul>
 *
 * <p>
 * Access control and governance for attribute access is described in
 * {@code zeroecho.pki.api.audit}.
 * </p>
 *
 * @since 1.0
 */
package zeroecho.pki.api.attr;
