Add node registration claim transport

product-source/guanghu-knowledge-base/server/node-registration.ts

@@ -204,6 +204,15 @@ export function resolveNodeRegistrationEndpoint(
   return endpoint;
 }
 
+export function assertRegisteredNodeRegistrationEndpoint(
+  endpoint: NodeRegistrationEndpoint,
+): NodeRegistrationEndpoint {
+  if (!registeredEndpoints.has(endpoint)) {
+    throw new Error('node_registration_endpoint_unregistered');
+  }
+  return endpoint;
+}
+
 export function nodeRegistrationClaimSigningBytes(payload: NodeRegistrationClaimPayload): Buffer {
   return Buffer.from(JSON.stringify({
     accountId: payload.accountId,