[Feature Request] Put cloudfront in front of API GW

## Describe the solution you'd like

Currently we use cloudfront for hosting S3 only. when user is asking questions, it sends request to API Gateway. would be better if we put cloudfront in front of API GW to lower latency

## Why the solution needed

Some times it takes long time to reach API GW due to network

## Additional context

## Implementation feasibility

Are you willing to discuss the solution with us, decide on the approach, and assist with the implementation?

Yes

Review the current CloudFront setup for S3 and the request path from the chatbot to API Gateway. Define how API Gateway traffic should be routed through CloudFront and validate that the change lowers connection latency without breaking question requests.

Written by the indexing model from the issue text.