Refactor && Bug fix

[Miskler]

Description

Brief description of the changes made in this PR.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Performance improvement
• Code refactoring
• Test improvements

Changes Made

• Разбил тесты и src большие файлы на множество малых, сгруппировал по папкам
• Так же в МР будет фикс бага связанного с manual вставкой схем

Testing

• Tests pass locally
• New tests added for new functionality
• Documentation updated if needed
• Examples updated if needed

Checklist

• Code follows the project's style guidelines
• Self-review of the code has been performed
• Comments have been added in hard-to-understand areas
• Corresponding changes to the documentation have been made
• No new warnings or errors are introduced
• All tests pass

Additional Notes

None.

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