Make createDevApp options explicit

Define createDevApp options directly so the helper only exposes features and a typed bindRoutes property without inheriting from createApp options.

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
Made-with: Cursor

packages/frontend-dev-utils/report.api.md

@@ -11,8 +11,8 @@ import { FrontendFeatureLoader } from '@backstage/frontend-plugin-api';
 export function createDevApp(options: CreateDevAppOptions): void;
 
 // @public
-export interface CreateDevAppOptions
-  extends Pick<CreateAppOptions, 'bindRoutes'> {
+export interface CreateDevAppOptions {
+  bindRoutes?: CreateAppOptions['bindRoutes'];
   features: (FrontendFeature | FrontendFeatureLoader)[];
 }
 ```

packages/frontend-dev-utils/src/createDevApp.tsx

@@ -45,12 +45,16 @@ const BuiCss = lazy(() => import('./BuiCss'));
  *
  * @public
  */
-export interface CreateDevAppOptions
-  extends Pick<CreateAppOptions, 'bindRoutes'> {
+export interface CreateDevAppOptions {
   /**
    * The list of features to load in the dev app.
    */
   features: (FrontendFeature | FrontendFeatureLoader)[];
+
+  /**
+   * Allows for the binding of plugins' external route refs within the dev app.
+   */
+  bindRoutes?: CreateAppOptions['bindRoutes'];
 }
 
 /**