feat: implement war engine with unit types, battle mechanics, and logging

- Added types for war engine configuration, battle input, and outcomes.
- Implemented core war unit classes for generals and cities, including combat logic.
- Introduced utility functions for managing meta data and conflict resolution.
- Developed tests for war triggers and battle resolution scenarios.

packages/logic/src/index.ts

@@ -10,3 +10,4 @@ export * from './scenario/index.js';
 export * from './triggers/index.js';
 export * from './turn/index.js';
 export * from './world/index.js';
+export * from './war/index.js';