/**
 * URL and Path Utilities
 *
 * Shared utilities for URL slug generation and path manipulation
 * used by server.ts for generating filenames.
 */
/** Maximum length for generated slugs */
export declare const MAX_SLUG_LENGTH = 50;
/** Maximum length for log messages in summaries */
export declare const MAX_LOG_MESSAGE_LENGTH = 200;
/**
 * Generate a URL-safe slug from a URL path or title
 *
 * @param url - The URL to generate a slug from
 * @param title - Optional title to use as fallback
 * @returns A URL-safe slug string
 *
 * @example
 * ```ts
 * generateSlugFromUrl('https://example.com/company/acme-corp')
 * // Returns: 'company-acme-corp'
 *
 * generateSlugFromUrl('https://example.com/', 'Home Page')
 * // Returns: 'index'
 * ```
 */
export declare function generateSlugFromUrl(url: string, title?: string): string;
/**
 * Format a timestamp for use in filenames
 *
 * @param timestamp - Unix timestamp in milliseconds
 * @returns ISO date string with colons and periods replaced by dashes
 *
 * @example
 * ```ts
 * formatTimestampForFilename(Date.now())
 * // Returns: '2024-01-15T10-30-45-123Z'
 * ```
 */
export declare function formatTimestampForFilename(timestamp: number): string;
/**
 * Generate a base filename with type prefix and timestamp
 *
 * @param type - The type prefix (e.g., 'screenshot', 'design-review', 'outline')
 * @param timestamp - Unix timestamp in milliseconds
 * @param slug - Optional slug to include in the filename
 * @returns A formatted filename without extension
 *
 * @example
 * ```ts
 * generateBaseFilename('screenshot', Date.now())
 * // Returns: 'screenshot-2024-01-15T10-30-45-123Z'
 *
 * generateBaseFilename('outline', Date.now(), 'company-page')
 * // Returns: 'outline-company-page-2024-01-15T10-30-45-123Z'
 * ```
 */
export declare function generateBaseFilename(type: string, timestamp: number, slug?: string): string;
/**
 * Default screenshot directory path
 */
export declare const SCREENSHOT_DIR = ".tmp/sweetlink-screenshots";
/**
 * Default HMR screenshot directory path
 */
export declare const HMR_SCREENSHOT_DIR = ".tmp/hmr-screenshots";
/**
 * Truncate a message to a maximum length
 *
 * @param message - The message to truncate
 * @param maxLength - Maximum length (default: MAX_LOG_MESSAGE_LENGTH)
 * @returns Truncated message
 */
export declare function truncateMessage(message: string, maxLength?: number): string;
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