Method onStateChange

apps/cli/src/agent/extension-client.ts:322–324

* Convenience method: Subscribe only to state changes.

(listener: (event: AgentStateChangeEvent) => void)

	 * Convenience method: Subscribe only to state changes.
	 */
	onStateChange(listener: (event: AgentStateChangeEvent) => void): () => void {
		return this.on("stateChange", listener)
	}

	/**
	 * Convenience method: Subscribe only to waiting events.