⭐ feat: Upgrade to asynchronous event bus with retry queue and backoff strategy (#290)

## Description
<!-- Briefly describe the purpose and scope of your changes -->


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

- **New Features**
- Introduced a retry and dead-letter queue system for more robust event
processing.
- Added a retry handler for processing failed Lambda invocations with
exponential backoff.
- Enhanced event handling to support retry logic and improved error
management.

- **Refactor**
- Replaced SQS-based library event processing with an event bus-based
approach.
- Updated event names and structure for improved clarity and
consistency.
  - Removed legacy library queue and related infrastructure.

- **Chores**
  - Updated dependencies to include the AWS Lambda client.
  - Cleaned up unused code and removed deprecated event handling logic.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/core/src/library/index.ts

@@ -19,8 +19,8 @@ export namespace Library {
     export type Info = z.infer<typeof Info>;
 
     export const Events = {
-        Queue: createEvent(
-            "library.queue",
+        Add: createEvent(
+            "library.add",
             z.object({
                 appID: z.number(),
                 lastPlayed: z.date().nullable(),