- Added all 47 missing interface methods to KingdomService
- Fixed UnitOfWork transaction signatures throughout service
- Corrected Kingdom entity property references (CurrentPopulation vs Population)
- Implemented comprehensive KvK event management system
- Added democratic leadership and voting systems
- Completed population management and kingdom merger operations
- Added teleportation, analytics, intelligence, and diplomatic systems
- Fixed repository method call signatures with proper kingdomId parameters
- Resolved compilation errors in service layer implementation
Status: Service layer interfaces complete, cascade compilation errors need resolution