New provider: Oh Dear

Oh Dear is now connected to Unolia.

This adds monitoring as a first-class part of a project. Unolia can sync monitors, receive webhook updates, keep monitor runs attached to the right project, and show monitoring next to domains, DNS, hosting, and repositories.

The integration also connects to project costs. If a monitor belongs to a client project, that recurring cost can be part of the same monthly picture as the rest of the infrastructure.

The goal is simple: when a site has a problem, Unolia should know which domain, provider, server, repository, and monitor are involved.