/**
 * Structured error logging for observability
 *
 * Provides unified error logging with slug-based identification, structured
 * fields for metrics/tracing integration, and environment-aware formatting.
 */
import { VeryfrontError } from "./types.js";
export interface ErrorLogEntry {
    level: "error";
    slug: string;
    category: string;
    title: string;
    detail?: string;
    suggestion?: string;
    status: number;
    docs: string;
    timestamp: string;
    context?: Record<string, unknown>;
}
/**
 * Log a VeryfrontError with structured formatting
 *
 * In development: Human-readable multi-line format with colors
 * In production: Single-line JSON for log aggregation (Loki, etc.)
 *
 * @param error - The VeryfrontError to log
 * @param context - Additional context to include in logs
 */
export declare function logError(error: VeryfrontError, context?: Record<string, unknown>): void;
/**
 * Log an error with a custom message prefix
 *
 * Useful for adding operation context to error logs.
 *
 * @param message - Prefix message describing the operation
 * @param error - The VeryfrontError to log
 * @param context - Additional context to include
 */
export declare function logErrorWithMessage(message: string, error: VeryfrontError, context?: Record<string, unknown>): void;
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