- Add gold hex resource picking phase with AI support
- Implement ship building mechanics and update build costs UI
- Introduce fog tiles that reveal terrain when roads/ships are built adjacent
- Replace robber token with pirate ship graphic
- Persist random tile frames for consistent hex visuals
- Update game state machine to handle gold pick queue and phase transitions
- Adjust UI layout (card positions, build panel) to accommodate Seafarers elements
- 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.
Brian Fertig