bug(evaluate): broken data formatting

[micpst]

What happened?

I noticed that there are two formats for the evaluation data - one flat and the other with an options section. When I try to run the evaluation with the neptune callback, I get an exception. We should choose one layout and fix the code for neptune.

To reproduce run example from examples/evaluation/document-search/evaluate.py and flip neptune.run flag in examples/evaluation/document-search/config/retrieval.yaml

How can we reproduce it?

No response

Relevant log output

Traceback (most recent call last):
  File "/Users/michal/repos/ragbits/examples/evaluation/document-search/evaluate.py", line 63, in main
    asyncio.run(bench(config))
  File "/Users/michal/.local/share/uv/python/cpython-3.10.15-macos-aarch64-none/lib/python3.10/asyncio/runners.py", line 44, in run
    return loop.run_until_complete(main)
  File "/Users/michal/.local/share/uv/python/cpython-3.10.15-macos-aarch64-none/lib/python3.10/asyncio/base_events.py", line 649, in run_until_complete
    return future.result()
  File "/Users/michal/repos/ragbits/examples/evaluation/document-search/evaluate.py", line 33, in bench
    run = setup_neptune(config)
  File "/Users/michal/repos/ragbits/packages/ragbits-evaluate/src/ragbits/evaluate/utils.py", line 110, in setup_neptune
    config.data.name,
omegaconf.errors.ConfigAttributeError: Key 'name' is not in struct
    full_key: data.name
    object_type=dict