The current implementation of tab_right/drift/univariate.py contains both a UnivariateDriftCalculator class and several standalone functions for univariate drift detection (e.g., detect_univariate_drift_with_options, detect_univariate_drift, detect_univariate_drift_df). This leads to duplicated logic and a lack of cohesion.

Proposed refactor:

• Move all functional logic into the UnivariateDriftCalculator class.
• Remove standalone functions and expose their features as class/static methods or instance methods as appropriate.
• Ensure all API use-cases are covered by the class (including backward compatibility where possible).
• Update docstrings and usage examples to reflect the new, centralized API.
• Add or update tests to verify that the refactored class covers all previous functionality.

Benefits:

• Improved maintainability and cohesion by following OOP principles.
• Centralized drift calculation logic.
• Easier to extend and maintain drift detection code in the future.