Print the API error body and x-request-id on failures #26

Problem

On an API error eds prints only the status line, for example:

Error: workflow client delete application: 500 Internal Server Error
Error: workflow client logs: 400 Bad Request

The response body and the x-request-id header are dropped, and the body often holds the actual answer:

• eds wf app create → 400 Bad Request; the body says repository must contain Dockerfile in the root directory.
• Every eds wf … call → 403 Forbidden when the API key's product scope lacks Workflow Studio; the body says API key verification failed: Key does not have access to this product.

To see these messages, one has to repeat the call with curl.

Request

Include the response body (truncated, secrets redacted) and the x-request-id in the error line and in the --json error output. The request id would make reports to support actionable.