� CRITICAL FIX: Remove gr.Accordion from function outputs

❌ Fixed: TypeError: argument of type 'bool' is not iterable
✅ Solution: Removed gr.Accordion from ui_function_wrapper outputs
✅ Layout components cannot be used as function outputs in Gradio
✅ Results accordion now opens by default instead of programmatic control

This resolves the JSON schema validation error preventing app launch.

app.py

@@ -46,7 +46,7 @@ def ui_function_wrapper(vehicle_type, user_description):
     """
     Main UI wrapper function that yields real-time updates to multiple Gradio components
     Returns tuples in the order: process_log, current_design_specs, progress_bar, 
-    results_accordion, final_status, simulation_video, best_design_specs, download_json, 
+    final_status, simulation_video, best_design_specs, download_json, 
     performance_summary, llm_rationale
     """
     global designer
@@ -61,7 +61,6 @@ def ui_function_wrapper(vehicle_type, user_description):
         "🚀 Initializing Agent2Robot system...\n",  # process_log_output
         {},  # current_design_specs_output
         0,   # progress_bar_output
-        gr.Accordion(open=False),  # results_accordion - keep closed initially
         "",  # final_status_output
         None,  # simulation_video_output
         {},  # best_design_specs_output
@@ -84,7 +83,6 @@ def ui_function_wrapper(vehicle_type, user_description):
         current_log,  # process_log_output
         {"interpreted_criteria": criteria},  # current_design_specs_output
         0,  # progress_bar_output
-        gr.Accordion(open=False),  # results_accordion
         "",  # final_status_output
         None,  # simulation_video_output
         {},  # best_design_specs_output
@@ -102,7 +100,6 @@ def ui_function_wrapper(vehicle_type, user_description):
         current_log,  # process_log_output
         {"status": "Design process starting..."},  # current_design_specs_output
         0,  # progress_bar_output
-        gr.Accordion(open=False),  # results_accordion
         "",  # final_status_output
         None,  # simulation_video_output
         {},  # best_design_specs_output
@@ -122,7 +119,6 @@ def ui_function_wrapper(vehicle_type, user_description):
             current_log,  # process_log_output
             {"current_iteration": iteration, "max_iterations": MAX_ITERATIONS, "status": "Running..."},  # current_design_specs_output
             progress_value,  # progress_bar_output
-            gr.Accordion(open=False),  # results_accordion
             "",  # final_status_output
             None,  # simulation_video_output
             {},  # best_design_specs_output
@@ -156,7 +152,6 @@ def ui_function_wrapper(vehicle_type, user_description):
                     current_log,  # process_log_output
                     current_specs_display,  # current_design_specs_output
                     progress_value,  # progress_bar_output
-                    gr.Accordion(open=False),  # results_accordion
                     "",  # final_status_output
                     None,  # simulation_video_output
                     {},  # best_design_specs_output
@@ -177,7 +172,6 @@ def ui_function_wrapper(vehicle_type, user_description):
                 current_log,  # process_log_output
                 {"error": f"Iteration {iteration} failed", "details": str(e)},  # current_design_specs_output
                 progress_value,  # progress_bar_output
-                gr.Accordion(open=False),  # results_accordion
                 "",  # final_status_output
                 None,  # simulation_video_output
                 {},  # best_design_specs_output
@@ -193,7 +187,6 @@ def ui_function_wrapper(vehicle_type, user_description):
         current_log,  # process_log_output
         {"status": "Generating final results..."},  # current_design_specs_output
         100,  # progress_bar_output - complete
-        gr.Accordion(open=False),  # results_accordion
         "",  # final_status_output
         None,  # simulation_video_output
         {},  # best_design_specs_output
@@ -265,7 +258,6 @@ def ui_function_wrapper(vehicle_type, user_description):
         final_log,  # process_log_output
         {"final_summary": f"Process completed. {len(designer.all_attempts)} iterations run."},  # current_design_specs_output
         100,  # progress_bar_output
-        gr.Accordion(open=True),  # results_accordion - open results section
         final_status,  # final_status_output
         simulation_gif_path,  # simulation_video_output
         best_specs,  # best_design_specs_output
@@ -385,7 +377,7 @@ def create_agent2robot_interface():
                     )
         
         # Results Section
-        with gr.Accordion("🏆 Final Results & Design Specifications", open=False) as results_accordion:
+        with gr.Accordion("🏆 Final Results & Design Specifications", open=True) as results_accordion:
             final_status_output = gr.Markdown(
                 label="🏁 Final Run Status",
                 value="Waiting for process to complete..."
@@ -431,7 +423,6 @@ def create_agent2robot_interface():
                 process_log_output,
                 current_design_specs_output,
                 progress_bar_output,
-                results_accordion,
                 final_status_output,
                 simulation_video_output,
                 best_design_specs_output,