Initial release: collaborative trip planner

Multi-user trip planning web app in a single Docker container. Mullvad-style token accounts, trip sharing via join codes, day-by-day calendar with typed entries (activity, hotel, travel, flight, rental car, immigration, note), multi-leg flight segments with bundled IATA airport dataset, Leaflet/OSM map with per-leg great-circle km (air vs ground), rough km-driven vs rental included-km comparison, cost splitting with settle-up suggestions, flip-clock departure countdown. Node 20 + Express + SQLite (WAL, additive migrations), vanilla JS SPA, 44 API tests.

.gitignore

@@ -0,0 +1,15 @@
+node_modules/
+/data/
+*.db
+*.sqlite
+.env
+.env.*
+npm-debug.log*
+.DS_Store
+Thumbs.db
+.claude-flow/
+.claude/
+.swarm/
+.mcp.json
+ruvector.db
+.playwright-mcp/