- SvelteKit project with @sveltejs/adapter-static (runs fully static)
- scripts/osm-data.mjs: pulls OSM data from Overpass API and converts to
static GeoJSON under static/data/ with per-area manifest
- Leaflet map frontend that loads the static data and renders features
with popups and area selection dropdown
- npm run build fetches data then produces a self-contained static site
