Implement shared packages (tasks 2.1-2.6)

- @trails-cool/types: Route, Activity, Waypoint, RouteVersion, RouteMetadata
- @trails-cool/gpx: GPX parser (XML→waypoints/tracks/elevation) and generator
  with round-trip test, haversine distance, elevation gain/loss computation
- @trails-cool/map: MapView (Leaflet + OSM/OpenTopoMap/CyclOSM layer switcher),
  RouteLayer (GeoJSON polyline rendering)
- @trails-cool/ui: Button (primary/secondary/ghost), Input (with label/error),
  Card components with Tailwind styling
- @trails-cool/i18n: react-i18next config with English + German translations,
  browser language detection, fallback to English

All 13 unit tests pass. Both apps build successfully.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Ullrich Schäfer 2026-03-22 13:09:35 +01:00
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@ -10,12 +10,12 @@
## 2. Shared Packages
- [ ] 2.1 Implement `@trails-cool/types` — Route, Activity, Waypoint, RouteVersion, RouteMetadata interfaces
- [ ] 2.2 Implement `@trails-cool/gpx` — GPX parser (XML → waypoints/tracks/elevation) and GPX generator (waypoints/tracks → XML)
- [ ] 2.3 Implement `@trails-cool/map` — MapView React component (Leaflet + OSM), RouteLayer component (GeoJSON polyline), layer switcher (OSM/OpenTopoMap/CyclOSM)
- [ ] 2.4 Implement `@trails-cool/ui` — Button, Input, Card, Layout components with Tailwind styling
- [ ] 2.5 Implement `@trails-cool/i18n` — react-i18next config, English + German translation files, LanguageSwitcher component
- [ ] 2.6 Verify all packages are importable from both apps
- [x] 2.1 Implement `@trails-cool/types` — Route, Activity, Waypoint, RouteVersion, RouteMetadata interfaces
- [x] 2.2 Implement `@trails-cool/gpx` — GPX parser (XML → waypoints/tracks/elevation) and GPX generator (waypoints/tracks → XML)
- [x] 2.3 Implement `@trails-cool/map` — MapView React component (Leaflet + OSM), RouteLayer component (GeoJSON polyline), layer switcher (OSM/OpenTopoMap/CyclOSM)
- [x] 2.4 Implement `@trails-cool/ui` — Button, Input, Card, Layout components with Tailwind styling
- [x] 2.5 Implement `@trails-cool/i18n` — react-i18next config, English + German translation files, LanguageSwitcher component
- [x] 2.6 Verify all packages are importable from both apps
## 3. Infrastructure