Go REST API

Session Summary

Added WebSocket support to the Go REST API with gorilla/websocket upgrade handler, pub/sub hub for real-time event broadcasting, ping/pong heartbeat for connection health monitoring, and graceful shutdown handling. Fixed a race condition in concurrent map writes to the client registry and added an integration test covering the full WebSocket lifecycle.

◆ Claude Instruction

Copy and paste this into Claude Code to generate and upload a summary.

Please write a concise summary of what we accomplished in this coding session
and upload it using the curl command below. Replace <SUMMARY> with your summary text.

curl -X PATCH "http://alex-cpt.myu.com.au/api/sessions/sess_18" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: Ed2Va3ODx4uZVN1ClRtbUct" \
  -d '{"summary": "<SUMMARY>"}'