fix: resolve test patching failure in test_evaluate_multiple_models.py

[federetyk]

Link to issue: #25

Description

Fixed the AttributeError in test_evaluate_multiple_models.py caused by incorrect mock patching

The issue: patch("workrb.evaluate.evaluate") fails because workrb.evaluate resolves to the evaluate function (exported in __init__.py) rather than the module, causing Python to look for an evaluate attribute on the function object

Solution: Use patch.object() with an explicitly imported module reference to ensure the correct target is patched

Changes:

• Added import importlib
• Added evaluate_module = importlib.import_module("workrb.evaluate") to get explicit module reference
• Replaced all patch("workrb.evaluate.evaluate") with patch.object(evaluate_module, "evaluate")

Checklist

• Added new tests for new functionality
• Tested locally with example tasks
• Code follows project style guidelines
• Documentation updated
• No new warnings introduced

[federetyk]

Superseded by a cleaner fix: renaming the module to avoid the naming collision entirely. See this comment and #29