/**
 * `forge drift` — Governance drift detection.
 *
 * Compares the current governance state of a project against a saved baseline
 * snapshot and reports what has changed: gate regressions, evidence gaps,
 * risk increases, SLA degradations, policy changes, and violation spikes.
 *
 * Governance drift is NOT generic API schema drift. It tracks changes in the
 * quality and governance posture of the project — the things that matter for
 * delivery governance.
 *
 * Subcommands:
 *   forge drift                             Compare current state to latest snapshot
 *   forge drift snapshot                    Save a new governance snapshot (baseline)
 *   forge drift --json                      JSON output for agent consumption
 *   forge drift history                     Show drift over last N snapshots
 *
 * Options:
 *   -p, --project <pid>                     Project ID (defaults to .forgeos/config.json)
 *   --baseline <snapshot_id>                Specific baseline snapshot to compare against
 *   --json                                  Machine-readable JSON output
 *
 * Exit codes:
 *   0  — no drift (or snapshot taken successfully)
 *   1  — error (engine unreachable, project not found, etc.)
 *   2  — drift detected (useful for CI gate integration)
 */
import { Command } from "commander";
import { ForgeOSClient } from "../../shared/client.js";
interface DriftItem {
    category: string;
    severity: string;
    field: string;
    baseline_value: string;
    current_value: string;
    description: string;
}
interface DriftReport {
    project_id: string;
    baseline_timestamp: string;
    current_timestamp: string;
    has_drift: boolean;
    worst_severity: string;
    drift_count: number;
    summary: Record<string, number>;
    items: DriftItem[];
}
/**
 * Render a DriftReport to terminal output.
 * Exported for testing.
 */
export declare function renderDriftReport(report: DriftReport, projectName?: string): string;
export declare function registerDriftCommands(parent: Command, client: ForgeOSClient): void;
export {};
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