import type { OrchestrationV2ThreadProjection } from "@t3tools/contracts";import * as Option from "effect/Option"; import { EMPTY_THREAD_HISTORY_META, type ThreadHistoryMeta } from "./threadHistoryMerge.ts"; export type EnvironmentThreadStatus = "empty" | "cached" | "synchronizing" | "live" | "deleted"; export interface EnvironmentThreadState {  readonly data: Option.Option<OrchestrationV2ThreadProjection>;  readonly status: EnvironmentThreadStatus;  readonly error: Option.Option<string>;  /**   * Progressive history cursor for bounded hydration. Absent/cleared on full   * snapshot paths. Errors here are thread/history-local and must not be   * promoted into the environment disconnect path.   */  readonly history: ThreadHistoryMeta;} export const EMPTY_ENVIRONMENT_THREAD_STATE: EnvironmentThreadState = {  data: Option.none(),  status: "empty",  error: Option.none(),  history: EMPTY_THREAD_HISTORY_META,};