build fix

app.py

@@ -158,7 +158,10 @@ Write like the stakes are real. Because they are.
         gr.Markdown("# Greg Logan AI - Brand Strategy Assistant")
         gr.Markdown("Get direct, punchy, and provocative brand strategy insights from Greg Logan's perspective.")
         
-        chatbot = gr.Chatbot(height=600)
+        chatbot = gr.Chatbot(
+            height=600,
+            type="messages"  # Use the new messages format
+        )
         with gr.Row():
             msg = gr.Textbox(
                 show_label=False,
@@ -181,5 +184,7 @@ auth_password = os.getenv("AUTH_PASSWORD", "admin")
 
 # Launch with authentication
 demo.launch(
+    server_name="0.0.0.0",  # Required for Hugging Face Spaces
+    server_port=7860,       # Default Gradio port
     auth=(auth_username, auth_password) if auth_username and auth_password else None
 )