used newer gradio syntax

test_app.py

@@ -93,21 +93,15 @@ class MockFloorSession:
         return "⏸️ No active speaker"
     
     def format_chat_history(self):
-        """Format messages for Gradio Chatbot with type='messages'"""
+        """Format messages for Gradio Chatbot as tuples (user, assistant)"""
         formatted = []
         for msg in self.messages:
             if msg["role"] == "system":
-                # System messages as assistant role with italic content
-                formatted.append({
-                    "role": "assistant",
-                    "content": f"_{msg['content']}_"
-                })
+                # System messages as (None, message)
+                formatted.append((None, f"_{msg['content']}_"))
             else:
-                # Agent messages as user role with name prefix
-                formatted.append({
-                    "role": "user",
-                    "content": f"**{msg['role']}** [{msg['timestamp']}]: {msg['content']}"
-                })
+                # Agent messages as (message, None)
+                formatted.append((f"**{msg['role']}** [{msg['timestamp']}]: {msg['content']}", None))
         return formatted
 
 
@@ -218,7 +212,7 @@ def get_agent_dropdown_choices():
 
 
 # Create Gradio interface
-with gr.Blocks(title="OFP Floor Manager Test", theme=gr.themes.Soft()) as demo:
+with gr.Blocks(title="OFP Floor Manager Test") as demo:
     gr.Markdown("# 🎤 OpenFloor Protocol - Floor Manager Test")
     gr.Markdown("Test interface for managing multi-agent floor conversations")
     
@@ -285,8 +279,7 @@ with gr.Blocks(title="OFP Floor Manager Test", theme=gr.themes.Soft()) as demo:
             
             chatbot = gr.Chatbot(
                 label="Conversation",
-                height=400,
-                type="messages"
+                height=400
             )
             
             gr.Markdown("### Send Message")
@@ -343,4 +336,4 @@ if __name__ == "__main__":
     print("🚀 Starting OFP Floor Manager Test Interface...")
     print("📱 Open your browser to test the interface")
     print("=" * 50)
-    demo.launch(server_name="0.0.0.0", server_port=7860, share=False)
+    demo.launch(server_name="0.0.0.0", server_port=7860, share=False, theme=gr.themes.Soft())