chore: Update README with new emoji and color scheme, and revise short description to reflect AI-based nurse handover training platform.

fix: add HF Spaces config to README

initial commit

feat: Integrate Supabase for data management, replacing local PostgreSQL. Implement Supabase service for CRUD operations on patients and scenarios, and update application logic to utilize Supabase API. Add Dockerfile for containerization and .dockerignore for build optimization.

Initial commit