import type {  EnvironmentId,  OrchestrationGetFullThreadDiffResult,  OrchestrationGetTurnDiffResult,  ThreadId,} from "@t3tools/contracts"; export type CheckpointDiffResult =  | OrchestrationGetTurnDiffResult  | OrchestrationGetFullThreadDiffResult; export interface CheckpointDiffState {  readonly data: CheckpointDiffResult | null;  readonly error: string | null;  readonly isPending: boolean;} export interface CheckpointDiffTarget {  readonly environmentId: EnvironmentId | null;  readonly threadId: ThreadId | null;  readonly fromTurnCount: number | null;  readonly toTurnCount: number | null;  readonly ignoreWhitespace: boolean;  readonly cacheScope?: string | null;}