avoid exporting BackendFeatureFactory

Signed-off-by: Vincenzo Scamporlino <vincenzos@spotify.com>

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

@@ -15,7 +15,7 @@
  */
 
 import { createServiceRef } from './services';
-import { BackendFeature, BackendFeatureFactory } from './wiring';
+import { BackendFeature } from './wiring';
 
 /** @alpha */
 export interface FeatureDiscoveryService {
@@ -33,4 +33,4 @@ export const featureDiscoveryServiceRef =
   });
 
 export type { ServiceRef } from './services';
-export type { BackendFeature, BackendFeatureFactory };
+export type { BackendFeature };

packages/backend-plugin-api/src/wiring/index.ts

@@ -28,6 +28,5 @@ export type {
   BackendModuleRegistrationPoints,
   BackendPluginRegistrationPoints,
   BackendFeature,
-  BackendFeatureFactory,
   ExtensionPoint,
 } from './types';

packages/backend-plugin-api/src/wiring/types.ts

@@ -67,7 +67,7 @@ export interface BackendModuleRegistrationPoints {
   }): void;
 }
 
-/** @public */
+/** @internal */
 export interface BackendFeatureFactory<
   TOptions extends [options?: object] = [],
 > {