feat: replace socket.io with websocket

Problem to solve

While socket.io provides us with additional layer on top of websocket, that makes a few this easier and faster, deploying on k8s becomes huge problem. On top of that other developers, have a hard time to use postman to connect.

Proposal

Replace socket.io with regular web socket. This will solve issues between k8s and caddy reverse proxy. I will make things easier for usage too.