/**
 * Content-addressable hashing for JSON-compatible value trees.
 *
 * Uses FNV-1a (32-bit) for fast, deterministic hashing. The hash is
 * computed bottom-up (Merkle-style): child hashes feed directly into
 * the parent hash as integers, avoiding intermediate string allocation.
 *
 * The hash is returned as a number (the raw 32-bit FNV-1a result).
 */
/**
 * Compute a deterministic content hash for any JSON-compatible value tree.
 *
 * Properties:
 * - Identical structures produce identical hashes
 * - Object key order does not affect the hash (keys are sorted)
 * - Returns a 32-bit integer (FNV-1a)
 *
 * Supports: null, undefined, boolean, number, string, arrays, plain objects.
 * Does not support: class instances, functions, symbols, bigint, etc.
 */
export declare function contentHash(value: unknown): number;