CUB-202: add real-time event handlers for sessions.changed, presence, agent.config

go-backend/internal/gateway/wsclient.go

@@ -213,6 +213,9 @@ func (c *WSClient) connectAndRun(ctx context.Context) error {
 		c.logger.Warn("initial sync failed, will continue with read loop", "error", err)
 	}
 
+	// Step 2c: Register live event handlers
+	c.registerEventHandlers()
+
 	// Step 3: Read loop
 	return c.readLoop(ctx, conn)
 }