…ories

- Implement new utils for common async patterns including withRetry, withTimeout, withCallback, etc.
- Introduce RedisClientFactory and EventBusRedisFactory classes for better resource management.
- Add tests for the new async utilities and update documentation with detailed API references.

- use withRedisClient utility for Redis operations
- Use withEventBus utility for event bus operations
- Replace async.waterfall with async.series where appropriate
- Improve error handling and callback patterns
- Add timeout handling using async.withTimeout instead of manual setTimeout
- Clean up code by removing redundant error checks

… constants organization

…ns and inconsistent states

Related to #133