fix: Add user message to history in messages format

Issue: User input not displaying in chat interface with type='messages'

🔧 Fix:
- Explicitly add user message to history in chat_wrapper
- Updated history = history + [{"role": "user", "content": message}]
- Pass updated history to generate_response function

📝 Behavior:
- User message now displays in chat interface
- Proper message flow: user → assistant
- Maintains conversation context correctly

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app.py

@@ -168,7 +168,11 @@ else:
 
 def chat_wrapper(message, history):
     """Wrapper for Gradio ChatInterface"""
-    return generate_response(message, history)
+    # When type="messages", history includes user message already from Gradio
+    # So we add it first, then generate response
+    updated_history = history + [{"role": "user", "content": message}]
+    response_history = generate_response(message, updated_history)
+    return response_history
 
 
 # Determine hardware info for UI
@@ -220,7 +224,10 @@ with gr.Blocks(title="🤖 Llama-2-Ko Chatbot") as demo:
     clear = gr.Button("🗑️ 대화 초기화", size="sm")
 
     def submit(message, history):
-        return chat_wrapper(message, history), ""
+        # Gradio automatically adds user message when type="messages"
+        # We just need to get the bot response
+        response_history = chat_wrapper(message, history)
+        return response_history, ""
 
     btn.click(submit, [msg, chatbot], [chatbot, msg])
     msg.submit(submit, [msg, chatbot], [chatbot, msg])