Monitor CrewAI AMP with FrontierStack

CrewAI AMP (formerly CrewAI Enterprise) is CrewAI's hosted Agent Management Platform. It has no account-wide API: every deployed crew gets its own URL, https://<crew>.crewai.com, and a Bearer token on the crew's Status tab. Point FrontierStack at that URL with the token and it confirms the crew answers by reading GET /inputs, alongside your other agent runtimes. Crews you run on your own machine or server are covered by the CrewAI (open source) service, which detects the crewai CLI.