- Maps gain worldMap flag, description, freeform weather, latitude/longitude,
easeOfAccess and factionControl; picker cards render them as stat tags
- resource-nodes gain a shared icon set and may exist with no resources as
plain marker nodes (placement ignores marker-only nodes)
- sidebar gains the World Map entry; Infrastructure section gets defaultOpen
- migrations 20260921_120000/123000/130500/134000; includes the generated
types/schema sweep (currency emblem fields land in the next commit)
Add the Leaflet map page and client (markers, labels, layer toggles, shipment interpolation), the placement and authoring server actions, the map-features and map-import API routes, and the map styles including leaflet pane isolation so portals stack correctly.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
