export interface LocalePlanInput {
    defaultLang: string;
    additionalLangs?: readonly string[];
    i18n: boolean;
    /** Whether the original input explicitly contained `--no-i18n`. */
    i18nExplicitlyDisabled?: boolean;
}
export interface LocalePlan {
    defaultLang: string;
    additionalLangs: string[];
    i18n: boolean;
    /** A non-empty explicit list won over an explicit `--no-i18n`. */
    overridesExplicitDisable: boolean;
}
/**
 * Resolve every locale input path to one canonical, filesystem-safe plan.
 * This function is pure and is the sole owner of locale normalization,
 * validation, legacy inference, and explicit-list precedence.
 */
export declare function resolveLocalePlan(input: LocalePlanInput): LocalePlan;