Fix mode switching in enhanced verification interface

- Fix output mismatch in mode selection buttons (was returning 10 values, expected 6)
- Create direct_mode_switch helper function for simple mode switching
- Update all mode selection buttons to use consistent outputs
- Properly update interface visibility when switching modes
- Resolves 'A function returned too many output values' warning

src/interface/enhanced_verification_interface.py

@@ -265,7 +265,17 @@ class EnhancedVerificationInterface:
                         )
                     else:
                         # Direct switch (no progress to preserve)
-                        return perform_mode_switch(mode_type, current_session_val)
+                        # Return only the 6 values expected by the button click handler
+                        result = perform_mode_switch(mode_type, current_session_val)
+                        # Extract only the values needed for the 6-output handler
+                        return (
+                            result[4],  # mode_switch_dialog visibility
+                            result[5],  # switch_warning_text
+                            result[6],  # pending_mode_switch_state
+                            result[7],  # current_mode_state
+                            result[8],  # current_session_state
+                            result[9]   # status_message
+                        )
                         
                 except Exception as e:
                     return (
@@ -391,42 +401,62 @@ class EnhancedVerificationInterface:
                 ]
             )
             
+            # Helper function for direct mode switch (no confirmation needed)
+            def direct_mode_switch(mode_type: str):
+                """Directly switch to a mode without confirmation."""
+                mode_selection_visible = False
+                enhanced_dataset_visible = mode_type == "enhanced_dataset"
+                manual_input_visible = mode_type == "manual_input"
+                file_upload_visible = mode_type == "file_upload"
+                
+                mode_title = EnhancedVerificationUIComponents.MODE_OPTIONS.get(mode_type, {}).get('title', 'Unknown')
+                status_msg = f"✅ Switched to {mode_title} mode"
+                
+                return (
+                    gr.Row(visible=mode_selection_visible),  # mode_selection_section
+                    gr.Row(visible=enhanced_dataset_visible),  # enhanced_dataset_interface
+                    gr.Row(visible=manual_input_visible),  # manual_input_interface
+                    gr.Row(visible=file_upload_visible),  # file_upload_interface
+                    mode_type,  # current_mode_state
+                    status_msg  # status_message
+                )
+            
             # Bind mode selection buttons
             enhanced_dataset_btn.click(
-                lambda cm, cs: switch_to_mode("enhanced_dataset", cm, cs),
-                inputs=[current_mode_state, current_session_state],
+                lambda: direct_mode_switch("enhanced_dataset"),
+                inputs=[],
                 outputs=[
-                    mode_switch_dialog,
-                    switch_warning_text,
-                    pending_mode_switch_state,
+                    mode_selection_section,
+                    enhanced_dataset_interface,
+                    manual_input_interface,
+                    file_upload_interface,
                     current_mode_state,
-                    current_session_state,
                     status_message
                 ]
             )
             
             manual_input_btn.click(
-                lambda cm, cs: switch_to_mode("manual_input", cm, cs),
-                inputs=[current_mode_state, current_session_state],
+                lambda: direct_mode_switch("manual_input"),
+                inputs=[],
                 outputs=[
-                    mode_switch_dialog,
-                    switch_warning_text,
-                    pending_mode_switch_state,
+                    mode_selection_section,
+                    enhanced_dataset_interface,
+                    manual_input_interface,
+                    file_upload_interface,
                     current_mode_state,
-                    current_session_state,
                     status_message
                 ]
             )
             
             file_upload_btn.click(
-                lambda cm, cs: switch_to_mode("file_upload", cm, cs),
-                inputs=[current_mode_state, current_session_state],
+                lambda: direct_mode_switch("file_upload"),
+                inputs=[],
                 outputs=[
-                    mode_switch_dialog,
-                    switch_warning_text,
-                    pending_mode_switch_state,
+                    mode_selection_section,
+                    enhanced_dataset_interface,
+                    manual_input_interface,
+                    file_upload_interface,
                     current_mode_state,
-                    current_session_state,
                     status_message
                 ]
             )