Fix: Correctly replace '/' with '_' in space ID for temp directory prefix

The division operator was causing a TypeError when creating the temporary directory. Replacing '/' with '_' resolves this. Previous attempts had errors in the replace command.

app.py

@@ -348,7 +348,7 @@ class GradioUI:
             return new_space_id, None, None, None, gr.Textbox("Please enter a Space ID to initialize agents.", visible=True)
 
         # Create new temporary directory
-        temp_dir = tempfile.mkdtemp(prefix=f"ai_workspace_{new_space_id.replace(''/'', '_')}_")
+        temp_dir = tempfile.mkdtemp(prefix=f"ai_workspace_{new_space_id.replace('/', '_')}_")
         file_upload_folder = Path(temp_dir) / "uploads"
         file_upload_folder.mkdir(parents=True, exist_ok=True)