React/Vite frontend and Express/SQLite backend for tracking visited and
planned cities on a map, with per-city notes, photos, links, and
participant-based sharing between family members. Includes session auth
with admin-managed user accounts, an OSM/Nominatim geocoding proxy, and a
single-image Docker deployment.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
