/**
 * One-time migration of CLI state directories from pre-v0.10.0 layout to the
 * unified Source-as-Claim layout.
 *
 * Detected via the absence of a `.proposit-v0.10` marker in the state dir;
 * once migration completes (or there is nothing to migrate) the marker is
 * written so subsequent CLI invocations no-op immediately.
 */
export declare function migrateV010(): Promise<void>;
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