Refactor imports in main_v2.py to include SmartSearchTool, enhance code organization in model_factory.py by removing unnecessary whitespace, and improve formatting in test_questions.py for better readability and consistency.

Refactor main_v2.py to update task formatting for dual answer requests, enhancing response structure. Implement error handling for JSON parsing in agent results, ensuring robust output. Add unit tests in test_questions.py to validate succinct answer accuracy against expected values. Remove unused extract_final_answer utility from utils.py, streamlining the codebase.