Klever-Go: Unauthenticated WebSocket /subscribe: no read-size limit, no connection cap, permissive origin -> remote node memory/goroutine exhaustion (DoS)

Summary The unauthenticated WebSocket endpoint GET /subscribe is registered open: true by default config/node/api.yaml and lets a remote, unauthenticated client exhaust the node's memory and goroutines. Because the REST API runs IN-PROCESS with the node — network/api/api.go Start... ends with...