swarm-ui: test which entries the egress card lists and the swarm-wide add body

frontend/packages/swarm-ui/src/agent/detail/allowed-domains.ts

@@ -83,3 +83,12 @@ export function entryBody(
   const name = domain.trim();
   return forSwarm ? { domain: name } : { domain: name, agent };
 }
+
+/**
+ * The entries that hold for every agent, which the swarm page's egress card
+ * lists: not an agent's own, and not an automatic one (kept by the controller
+ * from an environment or account, so nothing to remove).
+ */
+export function swarmWideEntries(entries: AllowedDomain[]): AllowedDomain[] {
+  return entries.filter((e) => e.agent === undefined && e.derived !== true);
+}