Add changeset and docs.

Signed-off-by: Joon Park <joonp@spotify.com>

plugins/permission-node/api-report.md

@@ -126,9 +126,7 @@ export type PolicyDecision =
     }
   | ConditionalPolicyDecision;
 
-// Warning: (ae-missing-release-tag) "ServerPermissionClient" is exported by the package, but it is missing a release tag (@alpha, @beta, @public, or @internal)
-//
-// @public (undocumented)
+// @public
 export class ServerPermissionClient extends PermissionClient {
   constructor(options: {
     discoveryApi: DiscoveryApi;

plugins/permission-node/src/ServerPermissionClient.ts

@@ -25,6 +25,11 @@ import {
   PermissionClient,
 } from '@backstage/plugin-permission-common';
 
+/**
+ * A server side {@link @backstage/plugin-permission-common#PermissionClient}
+ * that allows all backend-to-backend requests.
+ * @public
+ */
 export class ServerPermissionClient extends PermissionClient {
   private readonly serverTokenManager: ServerTokenManager;