- 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 docs/map-system.md with the mapping table and update AGENTS.md plus sub-AGENTS files for the map collections, routing, placement, and construction model.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
