feat: hide "Chat" tab

app.py

@@ -66,9 +66,9 @@ with gr.Blocks(title="Unpredictable Lord") as demo:
     chat_session_id = gr.State(value=None)
     chat_system_instructions = gr.State(value="")
 
-    with gr.Tabs():
-        # Chat Tab
-        with gr.TabItem("Chat"):
+    with gr.Tabs(selected="mcp_server"):
+        # Chat Tab (hidden - not ready for release)
+        with gr.TabItem("Chat", visible=False):
             with gr.Row():
                 # Left column: Chat interface
                 with gr.Column(scale=3):
@@ -387,7 +387,7 @@ _{personality_desc}_"""
             )
 
         # MCP Server Tab
-        with gr.TabItem("MCP Server"):
+        with gr.TabItem("MCP Server", id="mcp_server"):
             gr.Markdown(MCP_GUIDE_CONTENT)
 
             gr.Markdown("### Test: Initialize Game")