Implement resilience measures to the event system

[jlvadell]

Description / The Why?

The application relies heavily on events, and improper handling of these events can lead to data corruption. To prevent this, we need to implement additional security features to ensure reliable event processing.

Complexity: 4/5

The Task

Refactor the current event system to introduce a robust event queue, implement retries with exponential backoff, and ensure proper error handling. Additionally, events should be acknowledged (ACKs), and persistent errors should be sent to a Dead Letter Queue (DLQ).

Requirements

• Refactor event consumption to use a queue processed by a single thread.
• Implement error handling with a retry mechanism. If an event fails multiple times, it should be sent to a Dead Letter Queue (DLQ).
• Implement ACKs for events to confirm successful processing.