readme changes

docs: rewrite README for redesigned environment + add validation test

fix: replace stale server env copy with thin re-export of redesigned environment

feat: complete environment redesign — classification + queue output model

feat(ui): implement modern clinical dashboard interface using custom gradio blocks

fix(docker): ensure gradio dependency and ENABLE_WEB_INTERFACE are set in root Dockerfile

fix(docker): explicitly enable web interface via environment variable

fix(api): add root redirect to web interface for HF Spaces

feat: complete TriageFlow environment for Hackathon Submission