Initial OSS scaffold from Songs2VID (pre-strip)

lib/storage.ts

@@ -0,0 +1,17 @@
+import path from "path";
+import { WATERMARK_FILE_PATH } from "./watermark-policy";
+
+export function getUploadDir(): string {
+  return process.env.UPLOAD_DIR || path.join(process.cwd(), "uploads");
+}
+
+export function getJobDir(userId: string, jobId: string): string {
+  return path.join(getUploadDir(), userId, jobId);
+}
+
+/** Brand watermark PNG used by the default overlay pipeline. */
+export function getWatermarkPath(): string {
+  return process.env.WATERMARK_FILE_PATH?.trim() || WATERMARK_FILE_PATH;
+}
+
+export { WATERMARK_FILE_PATH };