Specific Exceptions instead of generic Exception raised in DurableOrchestrationClient

💡 **Feature description**
All the errors in DurableOrchestrationClient are raised with `raise Exception(message)`, even when it's a known case. Can we have more specific Exceptions that we can except specifically?

Also, it would be great to handle all the exceptions that can be returned instead of just the most common ones.

💭 **Describe alternatives you've considered**
`if "xxx" in str(e):...`

Start by inspecting DurableOrchestrationClient and cataloguing every place it raises generic Exception, along with the error responses each operation can return. Define the specific exception categories and complete handling coverage before changing behavior; done means callers can catch known failures without matching message text.

Written by the indexing model from the issue text.