fix: Fetch app auth clients for app config endpoint

packages/backend/src/controllers/api/v1/apps/get-config.ee.js

@@ -3,6 +3,9 @@ import AppConfig from '../../../../models/app-config.js';
 
 export default async (request, response) => {
   const appConfig = await AppConfig.query()
+    .withGraphFetched({
+      appAuthClients: true,
+    })
     .findOne({
       key: request.params.appKey,
     })

packages/backend/src/models/app-config.js

@@ -1,4 +1,5 @@
 import App from './app.js';
+import AppAuthClient from './app-auth-client.js';
 import Base from './base.js';
 
 class AppConfig extends Base {
@@ -17,6 +18,17 @@ class AppConfig extends Base {
     },
   };
 
+  static relationMappings = () => ({
+    appAuthClients: {
+      relation: Base.HasManyRelation,
+      modelClass: AppAuthClient,
+      join: {
+        from: 'app_configs.key',
+        to: 'app_auth_clients.app_key',
+      },
+    },
+  });
+
   static get virtualAttributes() {
     return ['canConnect', 'canCustomConnect'];
   }