Introduce translation shim type required to implement `Network` and `Syncing`

## Issue summary

- Introduce translation shim type that implements `Network` and `Syncing`.

## Implementation details

- Place in seperate package to avoid circular dependencies.
- Needs to implement all `Network` and `Syning` methods but should panic on call

## Other information and links

## Acceptance criteria

[] Implements `Network`
[] Implements `Syncing`

Start by locating the definitions of the `Network` and `Syncing` interfaces and their methods. Add the translation shim in a separate package to avoid circular dependencies, then verify that it implements both interfaces and that each method panics when called; add tests covering the interface assertions and panic behavior.

Written by the indexing model from the issue text.