/**
 * OAuth Token Endpoint
 *
 * POST /oauth/token — exchanges authorization codes for JWT access tokens
 * and handles refresh token grants.
 *
 * Supports:
 * - grant_type=authorization_code (with PKCE verification)
 * - grant_type=refresh_token (with token rotation)
 */
import type { HarperRequest } from '../types.ts';
/**
 * Handle POST /oauth/token
 */
export declare function handleToken(request: HarperRequest): Promise<Response>;
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