fix: update lru-cache to v10 and fix build errors

- Update lru-cache from v6 to v10.0.0
- Migrate LRUStorage to use new LRUCache API
- Migrate LRUWithRedisStorage to use new LRUCache API
- Change maxAge option to ttl (in seconds) for consistency
- Export new LRUStorageOptions and LRUWithRedisStorageOptions interfaces
- Update README documentation for new API

Author: claude