import { type IntentLang } from './intent-doc.js';
export interface IntentDocVersion {
    id: string;
    lang: IntentLang;
    contentHash: string;
    contentSnapshot: string;
    reason: string | null;
    createdAt: string;
}
export interface IntentDocVersionStore {
    saveVersion(input: {
        lang: IntentLang;
        content: string;
        reason?: string;
    }): Promise<IntentDocVersion>;
    listVersions(lang: IntentLang, limit?: number): Promise<IntentDocVersion[]>;
    getVersion(id: string): Promise<IntentDocVersion | null>;
    getLatest(lang: IntentLang): Promise<IntentDocVersion | null>;
}
export declare function computeVersionDiff(oldContent: string, newContent: string): {
    section: string;
    changed: boolean;
}[];
export declare function formatVersionSummary(version: IntentDocVersion, index: number): {
    label: string;
    preview: string;
};
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