Update app.py

app.py

@@ -21,14 +21,15 @@ def download_file(task_id, filename, save_dir="attachments"):
     save_path = os.path.join(save_dir, filename)
     print(f"[DEBUG] Try download: url={url} save_path={save_path}")
     try:
-        resp = requests.get(url, timeout=30)
+        resp = requests.get(url, timeout=30)  
         print(f"[DEBUG] HTTP {resp.status_code} for {url}")
         resp.raise_for_status()
-         if resp.headers.get('content-type', '').startswith('text/html'):
+        
+        if resp.headers.get('content-type', '').startswith('text/html'):
             print(f"Warning: Received HTML response, file might not exist: {filename}")
             return None
-             
-         with open(save_path, "wb") as f:
+            
+        with open(save_path, "wb") as f:
             f.write(resp.content)
         print(f"Downloaded attachment for task {task_id} -> {save_path}")
         return save_path