Better ResourcesWorkspace Exception Handling

In datadog; from times to times, the ws.resources endpoint is failing with a 500 status code response.

It means we lack to properly catch the underlying exception meanwhile there is no server log message to track the error.

We need to review the Exception Handling beside this endpoint in order to:

• log any uncaught exception
• review unchecked exceptions to see if some can be improved with an explicit status code