feat: Complete fresh restart with clean Streamlit configuration

debug: Add hello world test for HF Spaces restart cycle investigation

debug: Switch to ultra-minimal Streamlit test to isolate restart loop issue

fix: Shorten description to meet HF Spaces 60 character limit

fix: Simplify VoiceCal to single Streamlit service with direct STT connection

fix: Switch to Streamlit SDK to bypass VS Code detection

fix: Simplify VoiceCal build to avoid VS Code detection

fix: Switch to Docker SDK to avoid VS Code extension build errors

feat: Update VoiceCal with comprehensive documentation v0.5.6

initial commit