Update app.py

app.py

@@ -93,7 +93,8 @@ def batch_download_via_api(download_urls, download_dir=DOWNLOAD_DIR):
     api_url = "https://fred808-data1.hf.space/video/download"
     for url in download_urls:
         try:
-            resp = requests.post(api_url, json={"urls": [url]}, stream=True)
+            # FIX: API expects {"url": ...} not {"urls": [...]}
+            resp = requests.post(api_url, json={"url": url}, stream=True)
             if resp.status_code == 200:
                 # Try to get filename from Content-Disposition header
                 filename = None