Add runtime layer to run Bun on AWS Lambda

[Electroid]

Closes #352

[lukeshay]

I am very interested in this! I made a basic runtime that mimics the functionality of the node runtime but I like the consistency of using the fetch API.

Does this work with non-HTTP events? (e.g. SQS, AppSync, Cognito)

[Electroid]

I am very interested in this! I made a basic runtime that mimics the functionality of the node runtime but I like the consistency of using the fetch API.

Does this work with non-HTTP events? (e.g. SQS, AppSync, Cognito)

Yes, for non-HTTP events the payload will be in the Request body.

export default {
  async fetch(request: Request) {
    const event = await request.json();
  }
}