debug: Add file listing and use python -m streamlit

fix: Update git config email to pgits.job@gmail.com

fix: Resolve git config permission issues with proper user management

fix: Simplify Dockerfile to avoid git config permission issues

fix: Add wget to Dockerfile dependencies

fix: Configure Dockerfile to use our VoiceCalendar app

fix: Resolve merge conflicts and integrate HF template

feat: Add Dockerfile for HuggingFace Docker deployment

Duplicate from streamlit/streamlit-template-space