Logs to support nested attributes without flatten

### Problem Statement

Feature request to support 'object' attribute in the same way as the 'sdk' attribute without needing to flatten the object that you add as an attribute (e.g. with https://www.npmjs.com/package/flat).

### Solution Brainstorm

_No response_

### Product Area

Unknown

No file, test, or entry point is named. Start by reviewing the example and comparing how the existing “sdk” attribute is handled with the requested “object” attribute behavior; done means nested objects can be logged without flattening while preserving the intended attribute structure.

Written by the indexing model from the issue text.