fix(StateManager): catch TypeError in _decode_state for non-object JSON

[Jah-yee]

Summary

In , raises when is valid JSON but not a dict object (e.g., a JSON array or string ). Only was caught, leaving unhandled.

Fix

Catch both and in the final try block of .

Testing

The fix was validated against the reported scenario: when is a non-dict JSON value, raises which is now caught and re-raised as .

Fixes #368

[allen0099]

Thanks for looking at #368. The one-line change points in the right direction, but it is missing what the issue asks for: a test for each of validate_state, get_state_metadata and consume_state, and a changelog fragment (changelog.d/368.fixed.md, see docs/DEVELOPMENT.md#changelog-fragments). Catching every TypeError around StateData(**...) is also broader than needed; an isinstance(state_dict, dict) check after json.loads gives a clearer error and keeps the dict[str, Any] annotation honest.

We will fix #368 ourselves in a separate PR, so I am closing this one.