BizGaze_Remote/server/presence.js

// In-memory live state shared between the HTTP routes and the WebSocket signaling layer.
// NOTE (roadmap): this is the piece that must move to Redis to run multiple instances.
module.exports = {
  onlineAgents: new Map(),   // machineId -> { ws, machine }
  liveSessions: new Map(),   // sessionId -> { agentWs, viewerWs, machine, user }
  pendingShares: new Map(),  // code -> { sharerWs, sessionId } (no-install ad-hoc shares)
};