import non-alpha imports from the main package

Signed-off-by: Fredrik Adelöw <freben@gmail.com>

packages/backend-plugin-api/alpha-api-report.md

@@ -3,11 +3,8 @@
 > Do not edit this file. It is a report generated by [API Extractor](https://api-extractor.com/).
 
 ```ts
-// @public (undocumented)
-export interface BackendFeature {
-  // (undocumented)
-  $$type: '@backstage/BackendFeature';
-}
+import { BackendFeature } from '@backstage/backend-plugin-api';
+import { ServiceRef } from '@backstage/backend-plugin-api';
 
 // @alpha (undocumented)
 export interface FeatureDiscoveryService {
@@ -23,17 +20,5 @@ export const featureDiscoveryServiceRef: ServiceRef<
   'root'
 >;
 
-// @public
-export type ServiceRef<
-  TService,
-  TScope extends 'root' | 'plugin' = 'root' | 'plugin',
-> = {
-  id: string;
-  scope: TScope;
-  T: TService;
-  toString(): string;
-  $$type: '@backstage/ServiceRef';
-};
-
 // (No @packageDocumentation comment for this package)
 ```

packages/backend-plugin-api/src/alpha.ts

@@ -14,8 +14,10 @@
  * limitations under the License.
  */
 
-import { createServiceRef } from './services';
-import { BackendFeature } from './wiring';
+import {
+  BackendFeature,
+  createServiceRef,
+} from '@backstage/backend-plugin-api';
 
 /** @alpha */
 export interface FeatureDiscoveryService {
@@ -31,6 +33,3 @@ export const featureDiscoveryServiceRef =
     id: 'core.featureDiscovery',
     scope: 'root',
   });
-
-export type { ServiceRef } from './services';
-export type { BackendFeature };