- Fixed UnitOfWork ExecuteInTransactionAsync delegate signatures (CS1593)
- Fixed tuple return types to have minimum 2 elements (CS8124)
- Implemented all missing helper methods for purchase processing
- Added proper async/await patterns throughout service
- Fixed GetByTransactionIdAsync workaround using GetWhereAsync
- Corrected CombatType enum handling in battle analysis
- Complete anti-pay-to-win monitoring and VIP progression logic
- All interface methods fully implemented with business logic
f8201ff080