Your agent reports success. It succeeded against a Postgres that exists on its laptop and nowhere else.
With ZCP the agent works inside your actual project, against your actual managed services. When it says it works, it works where you need it to.
Your agent is going to touch your database. Worth knowing which continent it is on.
ZCP runs it in a real container on Zerops hardware in Prague, inside your project's private network, against managed databases reachable by hostname.