Better error messages for `az` create failures

[vmarcella]

Whenever az <resource> create commands are executed, their failure messages usually come in the form of JSON. In order to better render the error details in the portal, we need to parse out the contents of the JSON for it's message field and bubble it up to the portal via ocdStatus

[mbifeld]

Main problem is there's no standardization in output from CLI commands, so they're difficult to parse.

Could be fixed by passing JSON output to LLM to receive error message.