Have specific error codes and error chain for deployment validate command

[dennisseah]

As a:
User

I want:
error specific codes and error chaining for deployment dashboard command

So that:
I can understand the root cause.

Describe the solution you'd like:
add error code and maintain exception chain

Acceptance Criteria:

Describe alternatives you've considered:

Additional context:

Does this require updates to documentation?:
No

part of #1088