/**
 * Activity ID Generation
 *
 * Generates deterministic 16-char activity IDs from activity fields.
 * Uses SHA256 hash of field values in alphabetical order.
 */
/**
 * Generate a deterministic 16-char activity ID from all fields.
 * Uses SHA256 hash of field values in alphabetical order.
 */
export declare function generateActivityId(fields: Record<string, unknown>): string;
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