export type MigrationKind = 'config' | 'state' | 'sqlite' | 'extension';
export type MigrationSafety = 'auto' | 'manual' | 'blocked';
export type MigrationStatus = 'not_needed' | 'planned' | 'applied' | 'skipped' | 'conflict' | 'error';
export interface MigrationPlanItem {
    id: string;
    title: string;
    kind: MigrationKind;
    safety: MigrationSafety;
    status: MigrationStatus;
    message: string;
    details?: Record<string, unknown>;
}
export interface MigrationContext {
    configPath: string;
    stateDir?: string;
    now?: Date;
}
export interface Migration {
    id: string;
    kind: MigrationKind;
    safety: MigrationSafety;
    detect(ctx: MigrationContext): MigrationPlanItem | null;
    apply(ctx: MigrationContext): MigrationPlanItem;
}
export interface MigrationLedgerRun {
    id: string;
    status: MigrationStatus;
    appliedAt: string;
    message: string;
}
export interface MigrationLedger {
    version: 1;
    runs: MigrationLedgerRun[];
}