fix(studio-server): share background removal job runner

packages/studio-server/src/index.ts

@@ -14,6 +14,10 @@ export { isSafePath, walkDir } from "./helpers/safePath.js";
 export { getMimeType, MIME_TYPES } from "./helpers/mime.js";
 export { buildSubCompositionHtml } from "./helpers/subComposition.js";
 export { getElementScreenshotClip, type ScreenshotClip } from "./helpers/screenshotClip.js";
+export {
+  createBackgroundRemovalJob,
+  type BackgroundRemovalRender,
+} from "./helpers/backgroundRemovalJob.js";
 export {
   STUDIO_MANUAL_EDITS_PATH,
   createStudioManualEditsRenderBodyScript,