/**
 * Datadir discovery for `qfg serve`.
 *
 * Resolution order (plan §4):
 *   1. --datadir flag
 *   2. QUONFIG_DIR env var
 *   3. ./our-config if present
 *   4. ./.quonfig if present
 *   5. error
 *
 * Kept narrow on purpose: `qfg pull`/`qfg push` use a richer
 * `resolveWorkspaceDir` helper that walks up looking for `quonfig.json` — but
 * `qfg serve` is intentionally cwd-relative (the user said "serve THIS dir")
 * and the walk would surface a confusing path on a misconfigured repo. The
 * default-pair lookup mirrors `qfg pull --dir` defaults documented in the
 * plan.
 */
export declare const DEFAULT_DATADIR_CANDIDATES: readonly ["our-config", ".quonfig"];
export declare const NO_DATADIR_ERROR: string;
export interface ResolveDatadirInput {
    cwd: string;
    envDatadir: string | undefined;
    flagDatadir: string | undefined;
}
export type ResolveDatadirResult = {
    kind: 'ok';
    dir: string;
    source: 'flag' | 'env' | 'cwd-default';
} | {
    kind: 'error';
    message: string;
};
export declare const resolveDatadirForServe: (input: ResolveDatadirInput) => ResolveDatadirResult;