Extract Methods Refactor

Ask the user for the file or directory to refactor. Support multiple files if a directory is provided.

Process

Work through these steps in order, making a separate commit for each extraction:

1. Extract simple helper methods

   • Calculations, formatting, simple logic
   • Single responsibility, behavior-focused names
   • Pass necessary parameters rather than sharing state

2. Extract complex logic blocks

   • Validation, transformations, data processing
   • Well-named methods that reveal intent
   • Apply proper access modifiers (private for helpers)