- Decouple static board geometry from game state by introducing a board registry and `geoFor(state)` accessor. All AI and logic functions now dynamically resolve topology.
- Add support for Seafarers scenarios (New Shores, Four Islands, Oceania, Fog Island) with scenario-specific setup rules and victory conditions.
- Implement ship mechanics: players build maritime routes on coastal/sea edges that count toward the longest road.
- Introduce sea, gold, and fog terrain types. Update hex rendering, AI pathfinding, and placement rules to respect land vs. water constraints.
- Add pirate token rendering and logic, plus expansion scoring hooks for bonus victory points.
- Update lobby UI to allow expansion and scenario selection, passing configuration through to the game scene.
- Refactor `CatanBoard.js` geometry generation for O(1) edge lookups and dynamic port assignment.
- Replace static sea background with a radial gradient for a richer look.
- Redesign settlement and city graphics with drop shadows and white halos.
- Enhance road rendering with a white core for better visibility.
- Add VP badges and card count fans to opponent panels.
- Support card back sprites via `data.cardBack` for accurate card rendering.
- Mark Catan as a card game in the registry.
- Add high-resolution `catancards.png` and `catantiles.png` assets
- Replace hexagon background colors with textured tile images from spritesheet
- Redesign resource hand with card-style UI (dark background, artwork, colored borders)
- Introduce a new Bank Panel on the right side showing resource and dev card counts
- Implement resource collection animations (chit pulse, particle effects, card flight)
- Export `HEX_W` constant for use in tile sizing calculations
Brian Fertig