Method enterHookPhase

src/node/services/initStateManager.ts:223–238

* Signal that the .mux/init hook is starting. * This marks the transition from runtime provisioning to hook execution so * waitForInit() can start the 5-minute timeout at the right time.

(workspaceId: string)

   * waitForInit() can start the 5-minute timeout at the right time.
   */
  enterHookPhase(workspaceId: string): void {
    const state = this.store.getState(workspaceId);
    if (state?.status !== "running") {
      return;
    }

    if ((state.phase ?? "runtime_setup") === "init_hook") {
      return;
    }

    state.phase = "init_hook";
    state.hookStartTime = Date.now();

    const promiseEntry = this.initPromises.get(workspaceId);
    promiseEntry?.resolveHookPhase();
  }

  /**
   * Append output line from init hook.