refactor: simplify RandomForestClassifier and add debug config
What changed:
- Added VS Code launch configuration for Python debugging
- Significantly simplified RandomForestClassifier.py by removing complex feature engineering functions (parse_age_in_days, extract_sex, extract_breed, etc.)
- Removed extensive data inspection and correlation analysis functions
- Streamlined data preprocessing pipeline
- Updated file paths from './input/' to 'input/'
- Removed seaborn style configuration
Why: Refactored to create a more maintainable and straightforward implementation by eliminating over-engineered feature extraction logic and verbose inspection functions, making the codebase easier to understand and debug.