- Add Caffeine local cache dependency for high-frequency access scenarios
- Configure Spring Cache with Caffeine as primary CacheManager and Redis as secondary
- Add @Cacheable/@CacheEvict annotations to SysDictTypeServiceImpl
- Add @Cacheable/@CacheEvict annotations to SysConfigServiceImpl
- Add @Cacheable/@CacheEvict annotations to SysUserServiceImpl
- Create CacheUtils utility class for programmatic cache operations
- Extend CacheController with cache management endpoints (list, clear)