export interface PortfolioReportDiff {
    generatedAt: string;
    root: string;
    from?: string;
    to?: string;
    summary: {
        totalProjectsDelta: number;
        completedProjectsDelta: number;
        completionRateDelta: number;
        averageScoreDelta: number;
        warningProjectsDelta: number;
        blockedProjectsDelta: number;
        needsReviewProjectsDelta: number;
        legacyImportedProjectsDelta: number;
        legacyQueueDriftProjectsDelta: number;
        legacyNestedOutputProjectsDelta: number;
    };
    projectChanges: {
        added: string[];
        removed: string[];
        statusChanged: Array<{
            slug: string;
            from: string;
            to: string;
        }>;
        stageChanged: Array<{
            slug: string;
            from: string | null;
            to: string | null;
        }>;
        platformChanged: Array<{
            slug: string;
            from: string | null;
            to: string | null;
        }>;
        targetRuntimeChanged: Array<{
            slug: string;
            from: number | null;
            to: number | null;
        }>;
        clipDurationChanged: Array<{
            slug: string;
            from: number | null;
            to: number | null;
        }>;
        executionProfileChanged: Array<{
            slug: string;
            from: {
                aspectRatio?: string;
                quality?: string;
                resolution?: string;
                generateAudio?: boolean;
                outputCount?: number;
            } | null;
            to: {
                aspectRatio?: string;
                quality?: string;
                resolution?: string;
                generateAudio?: boolean;
                outputCount?: number;
            } | null;
        }>;
        legacyImportChanged: Array<{
            slug: string;
            from: {
                manifestPresent?: boolean;
                queueFilePresent?: boolean;
                queueStatusMismatch?: boolean;
                nestedOutputRootDetected?: boolean;
            } | null;
            to: {
                manifestPresent?: boolean;
                queueFilePresent?: boolean;
                queueStatusMismatch?: boolean;
                nestedOutputRootDetected?: boolean;
            } | null;
        }>;
        reviewStateChanged: Array<{
            slug: string;
            from: string | null;
            to: string | null;
        }>;
    };
}
export declare function buildPortfolioReportDiff(root?: string, options?: {
    fromPath?: string;
    toPath?: string;
}): Promise<PortfolioReportDiff>;
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