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/**
 * Audit logging reference implementations for ZeroEcho PKI.
 *
 * <h2>Scope</h2>
 * <p>
 * This package provides concrete implementations of the audit runtime, based on
 * the public API {@code zeroecho.pki.api.audit.*} and the SPI
 * {@code zeroecho.pki.spi.AuditSink}.
 * </p>
 *
 * <h2>Security properties</h2>
 * <ul>
 * <li><strong>No secrets in logs:</strong> JUL logs never include audit payload
 * maps, attribute values, keys, seeds, plaintext, or other sensitive
 * material.</li>
 * <li><strong>No secrets by default:</strong> reference sinks avoid printing
 * {@link zeroecho.pki.api.audit.AuditEvent#details()} unless explicitly
 * required by a custom sink implementation.</li>
 * <li><strong>Fail-fast recording:</strong> sink failures are propagated to the
 * caller to avoid silent audit loss.</li>
 * </ul>
 *
 * <h2>Determinism</h2>
 * <ul>
 * <li>Search results are deterministically sorted.</li>
 * <li>Stable event identifiers are derived from canonicalized content
 * (SHA-256).</li>
 * <li>File enumeration is deterministic (lexicographic order).</li>
 * </ul>
 *
 * <h2>Persistence</h2>
 * <p>
 * {@link zeroecho.pki.impl.audit.FileAuditSink} provides a baseline persistent
 * store using daily gzip files and sequential scanning. It is suitable as an
 * initial production-grade implementation without introducing a database.
 * </p>
 */
package zeroecho.pki.impl.audit;
