Represent a multi-day hike as separate named GPX <trk> elements, one per
stage, while still treating the whole thing as one route on the overview.
GPX & build:
- gpx.ts: parseGpxStages (one stage per <trk>) + multi-track buildGpx.
- build-hikes.ts: per-stage stats with totals summed across stages so the
overnight gaps (distance, time) and the altitude jump between stages are
excluded; previewBreaks recorded where stages sit >1 km apart.
- types: HikeStage, manifest `stages?` and `previewBreaks?` (both optional —
single-stage hikes are unchanged).
Detail page:
- HikeStageNav: a light itinerary-stepper switcher (numbered nodes, active
glows in the accent) writing a shared stageStore.
- Selecting a stage scopes the metrics, elevation profile (x-window),
map (highlight + zoom, dim the rest) and photo strip/markers; "Alle
Etappen" shows the whole route.
Overview: live map and the prerendered static composite both break the
preview line across >1 km inter-stage transfers (previewBreaks).
Route builder:
- Mark any placed waypoint as a stage start (named) from the waypoint list
or the detail panel; export assembles each stage independently into its
own <trk>; import re-marks stage boundaries from a multi-track GPX.
Work-in-progress route-builder checkpoint:
- New RouteStatsBar and WaypointDetailPanel components.
- EditMap / ImageDropzone / WaypointTable / builderStore updates.
- Hoist the elevation gain/loss/range helpers out of build-hikes.ts into
src/lib/hikes/elevation.ts so the builder and the build share one
implementation.
Also bundled here (same file, couldn't be split cleanly): build-hikes.ts
now detects each hike's country at build time — 'CH' when a Swiss canton
matched, otherwise an OSM/Nominatim reverse-geocode — and writes it to the
manifest, feeding the new Kanton/Land filter.
Alexander
