v0.3.5 - .docx and .xlsx support

What's new

• .docx and .xlsx support — Office documents now work in graphify. Install the optional extra:

  pip install graphifyy[office]
  

  • .docx: converted to markdown via python-docx (headings, lists, tables preserved)
  • .xlsx: each sheet converted to a markdown table via openpyxl
  • Converted files are saved to graphify-out/converted/ as .md sidecars — Claude reads them as normal documents
  • Graceful fallback if [office] is not installed: file is skipped with an install hint