Add support for operation interceptors

[dpacheco-groupieticket]

I would like to request support for operation interceptors, similar to what's available in other frameworks. My primary use case is to implement authorization checks before operations are executed.

Currently, there doesn't appear to be a straightforward way to intercept operations before they reach the actual implementation. This would be extremely valuable for cross-cutting concerns like:

• Authorization/authentication
• Request validation
• Logging
• Metrics collection

[mtdowling]

For the client or server? The client already has a rich set of abstractions, including interceptors.

[dpacheco-groupieticket]

Apologize for not being clear, I mean for the server. Thanks!