Implement portfolio admin management

lib/portfolio-storage.ts

@@ -0,0 +1,16 @@
+export {
+  MEDIA_UPLOAD_ROOT as PORTFOLIO_UPLOAD_ROOT,
+  MAX_MEDIA_FILE_SIZE as MAX_FILE_SIZE,
+  isManagedMediaFilePath as isManagedPortfolioFilePath,
+  removeManagedMediaFile as removeManagedPortfolioFile,
+  resolveMediaUploadPath as resolvePortfolioUploadPath,
+  sanitizeBaseName,
+} from "@/lib/media-storage";
+
+import { saveMediaUpload } from "@/lib/media-storage";
+
+export async function savePortfolioUpload(file: File, folder: string) {
+  const savedFile = await saveMediaUpload(file, folder);
+
+  return savedFile?.url ?? null;
+}