⭐ feat(infra): Migrate to serverless Lambda architecture (#291)

## 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 serverless API and authentication endpoints, improving
scalability and reliability.
- Added rate limiting to the API, providing protection against excessive
requests and returning custom error responses.

- **Improvements**
- Simplified infrastructure for both API and authentication, reducing
complexity and improving maintainability.
- Updated resource allocations for backend services to optimize
performance and cost.

- **Bug Fixes**
- Removed unused scripts and configuration, resulting in a cleaner
development environment.

- **Other**
  - Updated type declarations to reflect new infrastructure changes.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

infra/realtime.ts

@@ -1,9 +1,9 @@
-import { auth } from "./auth";
+// import { auth } from "./auth";
 import { postgres } from "./postgres";
 
 export const device = new sst.aws.Realtime("Realtime", {
     authorizer: {
-        link: [auth, postgres],
+        link: [ postgres],
         handler: "packages/functions/src/realtime/authorizer.handler"
     }
 })