I did some additional troubleshooting and found what looks like the root cause.
The "Switch to agent home layout" button is disabled because copilotChatEnabled is evaluating to false in the frontend. After setting sessionStorage.copilotChatEnabled = true and reloading, the Alyx interface became available.
Since the pricing page indicates that Alyx is included in the Free tier, I'm wondering if my account may be missing the expected feature-flag configuration.
Could you verify whether Alyx is correctly enabled for my account?