Add config, model status, and VLM support

Add EasyOCR/CUDA support and UI improvements

Major feature expansion: profile, calendar, voice chat, goal coach

README: fix venv command and document Space build fallback

Single-file requirements + Python 3.13 real-inference setup guide

Add venv setup guide + split mock-mode requirements

Add LifeOS: local-first personal assistant on Nemotron-3-Nano-4B

initial commit