Improve and Fix Issues in data_processing

[smog-root]

Tasks:

• Review all model files for potential performance optimizations.
• Refactor code to improve readability and remove redundancies.
• Fix any existing bugs in the model logic or structure.
• Add comments and documentation for better understanding.
• Write unit tests to verify model accuracy and reliability.

Additional Context: Ensure all changes align with the repository’s coding standards and best practices. This update is intended to make the models more robust and efficient for current and future use.

I need SWOC and a INTERMEDIATE labels @UTSAVS26

[github-actions]

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[github-actions]

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