Move all Python scripts to scripts/, documentation to docs/, raw input
data to data/, and generated HTML/CSV outputs to output/. Update path
references in 8 scripts to use Path(__file__).parent.parent as project
root so they work correctly from the new location. Update README links
and quick-start commands accordingly. Notebooks remain at root.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
