Restore and activate the Kaggle credentials bootstrap function in app.py

.gitignore

@@ -1,3 +1,2 @@
 .env
 .mcp-venv/
-.gradio

app.py

@@ -71,21 +71,21 @@ demo = gr.TabbedInterface(
     tab_names=["Search", "Files", "Download"]
 )
 
-# def _bootstrap_kaggle_credentials():
-#     user = os.getenv("KAGGLE_USERNAME")
-#     key = os.getenv("KAGGLE_KEY")
-#     if not (user and key):
-#         raise RuntimeError(
-#             "Kaggle credentials not found."
-#             "Set KAGGLE_USERNAME and KAGGLE_KEY as env vars or in .env"
-#         )
-#     cred_path = pathlib.Path.home() / ".kaggle" / "kaggle.json"
-#     if not cred_path.exists():
-#         cred_path.parent.mkdir(exist_ok=True)
-#         cred_path.write_text(json.dumps({"username": user, "key": key}))
-#         cred_path.chmod(0o600)
+def _bootstrap_kaggle_credentials():
+    user = os.getenv("KAGGLE_USERNAME")
+    key = os.getenv("KAGGLE_KEY")
+    if not (user and key):
+        raise RuntimeError(
+            "Kaggle credentials not found."
+            "Set KAGGLE_USERNAME and KAGGLE_KEY as env vars or in .env"
+        )
+    cred_path = pathlib.Path.home() / ".kaggle" / "kaggle.json"
+    if not cred_path.exists():
+        cred_path.parent.mkdir(exist_ok=True)
+        cred_path.write_text(json.dumps({"username": user, "key": key}))
+        cred_path.chmod(0o600)
 
-# _bootstrap_kaggle_credentials()    
+_bootstrap_kaggle_credentials()    
 
 api = KaggleApi()
 api.authenticate()