/**
 * Compute a deterministic hex-encoded SHA-256 digest of an intent input object.
 *
 * 1. JCS-canonicalise the intent input (RFC 8785)
 * 2. SHA-256 hash the UTF-8 bytes
 * 3. Return lowercase hex string
 *
 * Uses the Web Crypto API (available in Node.js ≥ 15 and all modern browsers).
 */
export declare function computeIntentInputDigest(intentInput: unknown): Promise<string>;
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