import { OrchestrationTools } from './orchestration-tools.js';
/**
 * Import result.
 */
export interface ImportResult {
    status: 'success' | 'partial' | 'error';
    imported_dimensions: string[];
    skipped_dimensions: string[];
    errors?: string[];
    checksum_validation: {
        contract_valid: boolean;
        dimensions_valid: Record<string, boolean>;
    };
}
/**
 * Imports system snapshot (contract + dimension slices).
 * Supports full and delta snapshots.
 */
export declare class SnapshotImporter {
    private workspaceRoot;
    private orchestrationTools;
    constructor(workspaceRoot: string, orchestrationTools: OrchestrationTools);
    /**
     * Imports snapshot from file.
     *
     * @param snapshotPath Path to snapshot file
     * @param delta If true, apply as delta (incremental)
     * @returns Import result
     */
    import(snapshotPath: string, delta?: boolean): Promise<ImportResult>;
    /**
     * Validates snapshot checksums.
     */
    private validateChecksums;
    /**
     * Imports a dimension slice.
     *
     * @param slice Dimension slice
     * @param delta If true, apply as delta
     */
    private importDimensionSlice;
    /**
     * Computes checksum for data.
     */
    private computeDataChecksum;
}
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