Fix: Remove show_copy_button (not in Gradio 6.x)

app.py

@@ -2551,7 +2551,7 @@ with gr.Blocks(title="AI Coding Agent Crew") as demo:
     """)
     
     # Chat interface - using type="messages" explicitly for Gradio 5.x
-    chatbot = gr.Chatbot(height=520, show_copy_button=True, placeholder="🎯 ဘာဆောက်ချင်ပါသလဲ? (What do you want to build?)")
+    chatbot = gr.Chatbot(height=520, placeholder="🎯 ဘာဆောက်ချင်ပါသလဲ? (What do you want to build?)")
     
     with gr.Row(equal_height=True):
         msg_input = gr.Textbox(