/** 该路由的 pathname（客户端 logic/search-credential.ts 需保持一致）。 */
export declare const SEARCH_CREDENTIAL_PATH = "/dsh-zh/api/search-credential";
/**
 * 「值本身不合法」的错误码全集。客户端据此区分「Key 不合法」与「保存失败」——
 * 除这些码以外的失败（not-found / internal / 未知）都不是 key 的问题，绝不能报成
 * 「Key 不合法」（2026-09-23 踩过：主机未重启时 POST 落到分发器兜底 404，界面却
 * 报「Key 不合法」）。verify-pairs 会断言客户端列表与本列表一致。
 */
export declare const SEARCH_CREDENTIAL_VALIDATION_CODES: readonly ["empty", "whitespace", "too-long", "not-string", "control-char"];
interface RouteRequest {
    method?: string;
    url?: string;
}
interface RouteResponse {
    statusCode: number;
    writeHead(status: number, headers?: Record<string, string>): void;
    end(body?: string | Uint8Array): void;
}
/**
 * GET /dsh-zh/api/search-credential → 凭据状态
 * POST /dsh-zh/api/search-credential → `{ provider?, key }` 保存，或 `{ provider?, clear: true }` 清除
 * @returns 命中该路径并已响应时 true，供 /dsh-zh/api 分发调用。
 */
export declare function handleSearchCredentialRoute(req: RouteRequest, res: RouteResponse, pathname: string, payload: Record<string, unknown> | null): boolean;
export {};
//# sourceMappingURL=search-credential.d.ts.map