Enterprise customers often need customized setups, especially in case of permissioned networks. We can expose a set of extension points to address custom flow requirements. - [ ] Define all configurable internal routines and flows (user account creation, quantum request confirmation, limits application, withdrawal logic, constellation upgrade rules, etc.) - [ ] Provide sandboxed environment for extensions scripting (preferably on .NET to optimize performance). - [ ] Expose extension settings and handlers with strict interface. - [ ] Documentation. - [ ] Performance and integration tests.