fix: export types like ResourcesController (#11)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **New Features**
- Enhanced module exports to include all types from `types.js` and added
exports for `Layer.js`, providing better integration and usability for
developers.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

src/index.ts

@@ -1,5 +1,7 @@
 import { Router } from './Router.js';
 
+export type * from './types.js';
+export * from './Layer.js';
 export * from './Router.js';
 export * from './EggRouter.js';