Load reference datasets through metric config

[jb3rndt]

Right now, if a metric requires a reference dataset (e.g., ground truth), it must be specified in the data loading config. The loader will then use the loading parameters of the main dataset to load the reference dataset. However, 1. not every metric requires a reference dataset and 2. this way of passing this dataset is inflexible (see the validity_outOfVocabulary metric that may receive a Set of words instead of a dataset) and lacks additional csv parsing parameters.

Thus, this PR removes the automatic loading of reference datasets and instead requires those to be defined by a metric config.

Additionally, a few python typing issues in the profiling submodule have been fixed.

[Copilot]

Pull request overview

This PR shifts “reference dataset” handling away from the data loader/orchestrator and into metric-specific configuration, by removing the orchestrator’s automatic reference loading and updating metric assess() signatures accordingly.

Changes:

• Removed orchestrator-managed reference dataset loading/passing; metrics are expected to source reference data via metric config instead.
• Added a metric config model for validity_outOfVocabulary to accept a reference vocabulary (DataFrame/set/None).
• Performed small refactors in profiling utilities (typing tweaks, to_numpy() usage, serialization import changes).

Reviewed changes

Copilot reviewed 21 out of 21 changed files in this pull request and generated 15 comments.

Show a summary per file

File	Description
metis/utils/data_profiling/single_column/value_distribution/quartiles.py	Adjusted return typing for quartiles/IQR.
metis/utils/data_profiling/single_column/value_distribution/histogram.py	Switched quantile extraction to to_numpy().
metis/utils/data_profiling/single_column/patterns_and_data_types/numeric_precision.py	Refactored decimal-string conversion; introduced an accidental duplicate-return bug.
metis/utils/data_profiling/single_column/domain_classification/domain.py	Minor cleanup; changed Series name handling.
metis/utils/data_profiling/single_column/cardinalities/null_values.py	Simplified return values for null stats (but changed scalar types).
metis/utils/data_profiling/single_column/cardinalities/distinct_values.py	Simplified return values (but changed scalar types).
metis/profiling/importers/jaccard_importer.py	Removed unused import; tightened profile typing.
metis/profiling/data_profile_manager.py	Moved numpy/pandas/dataketch imports to module scope; simplified deserialization path.
metis/metric/validity/validity_outOfVocabulary_config.py	New config model to supply the reference vocabulary.
metis/metric/validity/validity_outOfVocabulary.py	Loads reference vocabulary from metric config instead of an assess() arg.
metis/metric/timeliness/timeliness_heinrich.py	Removed reference from signature (docstring not updated).
metis/metric/minimality/minimality_duplicateCount.py	Removed unused reference from signature.
metis/metric/metric.py	Removed reference from base signature (docstring still mentions it).
metis/metric/correctness/correctness_heinrich.py	Removed reference from signature but implementation still uses reference (runtime break).
metis/metric/consistency/consistency_ruleBasedPipino.py	Removed reference from signature (docstring not updated).
metis/metric/consistency/consistency_ruleBasedHinrichs.py	Removed reference from signature (docstring not updated).
metis/metric/consistency/consistency_countFDViolations.py	Removed unused reference from signature.
metis/metric/completeness/completeness_nullRatio.py	Removed reference from signature (docstring not updated).
metis/metric/completeness/completeness_nullAndDMVRatio.py	Removed reference from signature (docstring not updated).
metis/dq_orchestrator.py	Removed reference dataframe loading and stopped passing reference into metrics.

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[Copilot]

Pull request overview

Copilot reviewed 21 out of 21 changed files in this pull request and generated no new comments.

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[lisehr]

With an old (deprecated) DB schema, you get an error message when trying to start the GUI: NameError: name 'Database' is not defined.