Release 0.1: QR code generator desktop app

[Jonathan2745]

Summary

Release 0.1 introduces the initial desktop QR Code Generator app.

This release includes a PySide6 GUI for generating QR codes from either raw text/URLs or structured contact details that are converted into vCard data before QR generation.

Changes

• Added PySide6 desktop GUI entry point.
• Added Text mode for generating QR codes from raw text or URLs.
• Added Contact mode with structured vCard fields:
  • first name
  • last name
  • title
  • organisation
  • repeated phone numbers
  • repeated emails
  • repeated URLs with URL type labels
  • repeated addresses with optional county field
• Added QR code generation service using qrcode and Pillow.
• Added vCard generation service with CRLF line endings and escaping.
• Added transparent QR background support.
• Added .env.example for local configuration.
• Added GitHub Actions CI for formatting, linting, and tests.
• Added PyInstaller spec file for Windows executable builds.
• Added pytest coverage for QR generation, vCard generation, and GUI behavior.
• Added README setup, testing, and packaging instructions.

Testing

Validated locally with:

python -m ruff format --check .
python -m ruff check .
python -m pytest