When a waypoint is created from or snapped to a POI, the Yjs Y.Map
now stores osmId (OSM node ID) and poiTags (phone, website, address,
opening hours, etc.). Dragging away clears this data.
This persists through the Yjs document and will be available when the
route is saved to the Journal, enabling future display of campsite
contact details, opening hours, etc. on route detail pages.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
6d82ebe127