v1.3.0: Frames Support

What's New

New Features

• Added support for <frame> and <frameset> pages — sites built entirely with frames (common in early 2000s web) now have all frame content downloaded and URLs rewritten for offline viewing
• Internal <iframe> content is also now properly downloaded and processed

Bug Fixes

• Fixed frame-only pages downloading nothing but the index HTML (fixes #1)
• Fixed Wayback Machine replay prefix parsing (fw_, if_) that was preventing frame URL extraction

Improvements

• Single version source of truth (__init__.py → setup.py)
• Release workflow uploads build artifacts and gracefully skips PyPI when token is absent