feat: add metadata field to scores

[davidmc971]

Important

Add optional metadata field to score-related models and methods for enhanced contextual data support.

• Models:
  • Add metadata field to ScoreBody in score_body.py.
  • Add metadata field to CreateScoreRequest in create_score_request.py and BaseScore in base_score.py.
  • Add metadata field to Score_Numeric, Score_Categorical, and Score_Boolean in score.py.
  • Add metadata field to responses in get_scores_response_data.py.
• Client:
  • Update score() function in client.py to include metadata parameter.
• Tests:
  • Update tests in test_core_sdk.py to include metadata in score creation and validation.

^{This description was created by for 876ecec. It will automatically update as commits are pushed.}

---

Greptile Summary

Disclaimer: Experimental PR review

This PR uniformly introduces an optional metadata field across score-related models and methods for enhanced contextual data support.

• Added metadata field to ScoreBody in /langfuse/api/resources/ingestion/types/score_body.py.
• Integrated metadata into CreateScoreRequest in /langfuse/api/resources/score/types/create_score_request.py and BaseScore in /langfuse/api/resources/commons/types/base_score.py.
• Updated Score_Numeric, Score_Categorical, and Score_Boolean in /langfuse/api/resources/commons/types/score.py and responses in /langfuse/api/resources/score/types/get_scores_response_data.py.
• Modified score creation in /langfuse/client.py and corresponding tests in /tests/test_core_sdk.py to reflect the changes.

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[greptile-apps]

LGTM

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[hassiebp]

Thanks @davidmc971 - looks good to me, left to minor comments :)

[davidmc971]

Great, thank you! Will implement those shortly :)

[davidmc971]

Just FYI, these failing tests are expected:

FAILED tests/test_core_sdk.py::test_metadata[Test Metadata-expected_metadata0] - KeyError: 'metadata'
FAILED tests/test_core_sdk.py::test_metadata[1-expected_metadata1] - KeyError: 'metadata'
FAILED tests/test_core_sdk.py::test_metadata[1.0-expected_metadata2] - KeyError: 'metadata'
FAILED tests/test_core_sdk.py::test_metadata[input_metadata3-expected_metadata3] - KeyError: 'metadata'
FAILED tests/test_core_sdk.py::test_metadata[input_metadata4-expected_metadata4] - KeyError: 'metadata'
FAILED tests/test_core_sdk.py::test_score_trace - KeyError: 'metadata'
FAILED tests/test_core_sdk.py::test_score_trace_nested_trace - AssertionError: assert None == {'key': 'value'}
 +  where None = Score_Numeric(value=0.5, id='796a90fc-c719-4b5e-b4e4-4fbafb9553ce', trace_id='e804e291-f432-42ab-a597-bba48c47c846', name='valuation', source=<ScoreSource.API: 'API'>, observation_id=None, timestamp=datetime.datetime(2025, 4, 9, 9, 59, 7, 63000, tzinfo=datetime.timezone.utc), created_at=datetime.datetime(2025, 4, 9, 9, 59, 7, 570000, tzinfo=datetime.timezone.utc), updated_at=datetime.datetime(2025, 4, 9, 9, 59, 7, 617000, tzinfo=datetime.timezone.utc), author_user_id=None, comment='tests/test_core_sdk.py::test_score_trace_nested_trace', metadata=None, config_id=None, queue_id=None, environment='default', data_type='NUMERIC', projectId='7a88fb47-b4e2-43b8-a06c-a5ce950dc53a', stringValue=None).metadata
FAILED tests/test_core_sdk.py::test_score_trace_nested_observation - AssertionError: assert None == {'key': 'value'}
 +  where None = Score_Numeric(value=0.5, id='edc36e38-10ed-4376-ac17-814ca860652a', trace_id='4845b182-6b4d-44a9-a66a-ca9a05cfc703', name='valuation', source=<ScoreSource.API: 'API'>, observation_id='ad689c74-e951-4844-884f-403a1f35cc8e', timestamp=datetime.datetime(2025, 4, 9, 9, 59, 9, 712000, tzinfo=datetime.timezone.utc), created_at=datetime.datetime(2025, 4, 9, 9, 59, 10, 221000, tzinfo=datetime.timezone.utc), updated_at=datetime.datetime(2025, 4, 9, 9, 59, 10, 359000, tzinfo=datetime.timezone.utc), author_user_id=None, comment='tests/test_core_sdk.py::test_score_trace_nested_observation', metadata=None, config_id=None, queue_id=None, environment='default', data_type='NUMERIC', projectId='7a88fb47-b4e2-43b8-a06c-a5ce950dc53a', stringValue=None).metadata
FAILED tests/test_core_sdk.py::test_score_span - KeyError: 'metadata'

There was no OSS release of the server changes yet, such that these test suites are failing because the backend doesn't handle metadata for them. Locally the tests were confirmed to be working.