- map-zones type gains territory and country border (informational political
boundaries that never gate placement, default fills amber 0.1 / violet 0.06)
- map-roads labelVisible is tri-state: unset means auto, where paved roads
always label and dirt/trail only label at 4 m/px or finer (roadLabelShown)
- migration clears the old implicit label default on non-paved roads
- new pure snapping lib: findSnap (vertices own their neighborhood, edges must
be twice as close), closestPointOnSegment, segmentMidpoints
- tests for label angles, tri-state rule, snapping, political zones
Add pure routing, placement, point, and style libs plus map-system tests. Shipments gain a map relationship and routePath snapshot; ground vehicles route over the road network via Dijkstra while air and sea travel straight-line. Vehicle types declare a ground/air/sea transportMode and transit math works in meters.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
