Update demo GIF

Add demo GIF and social preview image

Switch license badge to dynamic with cache bust, bump to v0.1.1

Use static license badge to avoid shields.io cache issue

Rename to voicekey, add provider abstraction and PyPI packaging

Add rich CLI visuals and comprehensive test suite

Rewrite README for the target audience: engineers at companies that block Wispr Flow

Initial implementation of oai-whisper macOS voice dictation tool