/**
 * Proxy config (`httpProxy`) lives in `~/.peaks/proxy.json` — NOT in
 * the slim `~/.peaks/config.json`. The slim config only carries
 * `version` + `ocr.llm.*`; the HTTP/HTTPS proxy the CLI uses for
 * outbound requests lives here in a dedicated sidecar.
 *
 * This module is the only owner of proxy.json. Back-compat reads
 * from `~/.peaks/config.json.proxy.httpProxy` are tolerated for
 * legacy configs (1.x); the next `setHttpProxy` call promotes the
 * value into `~/.peaks/proxy.json` and the legacy config.json field
 * is stripped by `loadGlobalConfig` governance.
 */
export type ProxySidecar = {
    version: string;
    httpProxy: string | null;
};
export declare function isValidProxyUrl(value: string): boolean;
export declare function validateProxyUrl(value: unknown): void;
export declare function getHttpProxy(): string | null;
export declare function setHttpProxy(httpProxy: string | null): void;
export declare function clearHttpProxy(): void;