Add stunning HTML presentation (7 slides, interactive, print-to-PDF ready)

Add PRESENTATION.md - 7 slide content

Add DOCUMENTATION.md and PRESENTATION.md

Update ML Intern artifact metadata

Add README with Space metadata and documentation

Add .gitkeep for database directory

Add database init script

Add app.py - Gradio frontend with 5 tabs

Add backend.py - core emergency services engine

Add requirements.txt

Update ML Intern artifact metadata

initial commit