Support atomic account creation with partial failure recovery

### Is your feature request related to a problem? Please describe.

### Description
When creating an account, if part of the process fails, it’s not always clear what state the account is left in. This can lead to partially created accounts or the need to manually clean things up before retrying.

Having better guarantees around account creation would make the SDK safer to use in more complex flows.

### Describe the solution you'd like

Add support for atomic account creation, where the process either fully succeeds or cleanly fails. If something goes wrong mid-process, the SDK should automatically roll back or clearly report the partial state.

The issue names no files, tests, or entry points. First map the account-creation flow and determine the required rollback or partial-state behavior; the work is done when creation either completes fully or clearly reports and cleans up a mid-process failure.

Written by the indexing model from the issue text.