Fix Gradio Chatbot compatibility - remove type='messages' parameter for older Gradio versions

app.py

@@ -229,11 +229,10 @@ while True:
                         demo_chatbot = gr.Chatbot(
                             label="Chat with Adam [DEMO]",
                             height=500,
-                            type="messages",
                             value=[
-                                {"role": "assistant", "content": "👋 Hello! I'm Adam, your general-purpose assistant. In the full version, I have access to MCP tools like screenshot capture, web search, file operations, and more!"},
-                                {"role": "user", "content": "Can you take a screenshot of a website?"},
-                                {"role": "assistant", "content": "In the full version, I would use the MCP screenshot tool to capture any website. This demo version doesn't have live MCP connections, but you can see how it would work in the full GitHub version!"}
+                                [None, "👋 Hello! I'm Adam, your general-purpose assistant. In the full version, I have access to MCP tools like screenshot capture, web search, file operations, and more!"],
+                                ["Can you take a screenshot of a website?", None],
+                                [None, "In the full version, I would use the MCP screenshot tool to capture any website. This demo version doesn't have live MCP connections, but you can see how it would work in the full GitHub version!"]
                             ]
                         )
                         
@@ -255,9 +254,8 @@ while True:
                         mcp_demo_chatbot = gr.Chatbot(
                             label="Chat with Liam [DEMO]",
                             height=500,
-                            type="messages",
                             value=[
-                                {"role": "assistant", "content": "👋 I'm Liam, your MCP development specialist. In the full version, I can help you build, test, and deploy MCP servers!"}
+                                [None, "👋 I'm Liam, your MCP development specialist. In the full version, I can help you build, test, and deploy MCP servers!"]
                             ]
                         )
                     
@@ -271,9 +269,8 @@ while True:
                         agent_demo_chatbot = gr.Chatbot(
                             label="Agent Builder Assistant [DEMO]",
                             height=500,
-                            type="messages",
                             value=[
-                                {"role": "assistant", "content": "👋 I'm Arthur, your agent creation specialist. In the full version, I can help you create custom agents for data analysis, creative writing, code review, and more!"}
+                                [None, "👋 I'm Arthur, your agent creation specialist. In the full version, I can help you create custom agents for data analysis, creative writing, code review, and more!"]
                             ]
                         )