/**
 * Shared server utilities used by both Express and Analog server adapters.
 * Extracted to avoid duplication between server-express and server-analog.
 */
/**
 * Sanitize error messages to prevent leaking internal details (SQL, file paths, etc.).
 * Returns the original message if it appears safe, otherwise returns the fallback.
 */
export declare function sanitizeErrorMessage(error: unknown, fallback: string): string;
/**
 * Sanitize a filename for use in Content-Disposition headers.
 * Strips any characters that could enable header injection.
 */
export declare function sanitizeFilename(name: string): string;
/**
 * Parses the `where` query parameter.
 * Handles both JSON string format (?where={"slug":{"equals":"home"}})
 * and pre-parsed object format from h3/qs/Express.
 */
export declare function parseWhereParam(raw: unknown): Record<string, unknown> | undefined;