Fix case dropdown initialization - load cases for default dataset on startup

app.py

@@ -347,10 +347,19 @@ def create_interface():
                             value=ui_config["inputs"]["dialect"]["default"]
                         )
                         
+                        # Initialize cases for default dataset
+                        default_dataset = get_available_datasets()[0] if get_available_datasets() else None
+                        initial_cases = []
+                        if default_dataset:
+                            print(f"Initializing cases for default dataset: {default_dataset}")
+                            initial_cases = get_cases_for_dataset(default_dataset)
+                            print(f"Initialized {len(initial_cases)} cases")
+                        
                         case_dropdown = gr.Dropdown(
-                            choices=[],
+                            choices=initial_cases,
                             label=ui_config["inputs"]["case"]["label"],
-                            interactive=True
+                            interactive=True,
+                            value=initial_cases[0] if initial_cases else None
                         )
                         
                         models_checkbox = gr.CheckboxGroup(
@@ -382,6 +391,7 @@ def create_interface():
                     print(f"update_cases returning {len(cases)} cases")
                     return gr.Dropdown(choices=cases, value=cases[0] if cases else None)
                 
+                
                 dataset_dropdown.change(
                     fn=update_cases,
                     inputs=[dataset_dropdown],