Add maps basemap config (world size, image/tiles mode, zoom defaults, isActive), map-roads, map-zones, and resource-nodes collections with maps:* permissions. Track game-structures map placement, meter coordinates, and label visibility/priority. Bump proximityThreshold to meters and adapt side-op map creation plus test fixtures to the new required fields.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
